We have had the privilage here on Rugby-Talk of an analysis of the rolls of Deon Stegmann and Francois Louw, done by McLook.
This has empted one of our Bloggers, Die Blou Kuberruim Wandelaar, to compile his own analysis, and because our viewpoint is one which allows differing opinions, we always give opportunity for such brilliant works to be published.
Thanks, DBK Wandelaar, here is your impressive piece:
(Side Note: Due to the width of certain Tables in the Article, increase your Screen resolution to 1440 x 900 or as close as possible to that)
A statistical comparison of Bulls openside flanker Deon Stegmann and Stormers flank Francois Louw during the 2010 Super14 season.
Deon Stegmann brings down Francois Louw
The statistics used in this article are freely available to the public from ruggastats.com, an online information portal that makes use of Verusco Technologies. Anyone is welcome to send me an e-mail at: flankstats@hotmail.com, and I will gladly send you the stats of the entire Super14 season (including stats such as minutes played and team stats as well as all calculations used) that I have compiled on the above-mentioned teams’ choice flanks:
Schalk Burger, Dewald Potgieter, Deon Stegmann and Francois Louw.
Any statistician knows that raw figures represent data and not information. In order for it to become informative, correlation and indices need to be used and patterns recognized. In a head to head comparison of the two rugby players in the title, statistically speaking, it might not seem appropriate at first for such comparisons to be made and one might stick to the old “eyeball” method in deciding which of the two seems to be a better player. The problem becomes compounded when taking into consideration that the two players don’t share an equal amount of playing-minutes, due to substitutions and bench-appearances. Furthermore, even though both are flanks, they don’t wear the same jersey numbers, and thus fulfil slightly different roles for their respective teams… different teams that don’t share equal success or coaching or temperament.
Deon Stegmann wears the number 6, and is a traditional so-called fetcher flank and opensider; which is why he packs down on the “open side” of the field at scrum time in order to break away in-field, cover defensively and operate in support of the breakdown areas. Stegmann’s compact build and low centre of gravity, core strength and speed are necessary attributes that enable him to be quick to the breakdown, (traditionally, it is said South African openside flanks have to be faster than their blindside counterparts seeing as their duty is to anticipate and be first to the breakdown in order to gain or maintain possession, to put it in simple terms), and maintain his footing and balance as he competes for the ball- since it is illegal for a player to do so of his feet. Openside flankers regularly score the highest ruck cleans and counters, as well as tackle counts for their teams; these are the players that do the donkeywork.
Francois Louw wears the number 7, traditionally a blindside, and has throughout the Super14 season been seen on that side of the scrum. He doesn’t have the pace to match Stegmann, and the coach relies on his slightly heavier frame as a ball carrier, although he is no slouch on the “deck” when it comes to his breakdown service.
Due to the strict breakdown interpretations of the Law Interpretations applied in 2010, much has been made of the limited opportunities afforded loose forwards tasked with disrupting, slowing down and stealing opposition ball at the breakdown- as all the great openside flanks such as Richie McCaw, have the capacity to do, often pushing the legal boundaries of the game and giving away a penalty or two. The new interpretations favour the attacking team or often the team with greater numbers at the breakdown. Referees have minimal tolerance in this area and expect tacklers to immediately release, roll away, and get to their feet (if having gone to ground during the tackle) and show ample “daylight” between himself and the tackled player who is still in possession of the ball, as he tries to compete before a ruck is formed. This supposedly reduces breakdown clutter and makes it much easier to maintain possession whilst building up momentum on attack, consequently producing many tries in the 2010 season. Some are of the opinion that this new approach needs refining and has dished up “basketball rugby” devoid of the traditional, entertaining breakdown scrap which requires balanced loose forward combinations… not to mention dissatisfied fans and players who often complain about 50/50 decision that are mostly awarded to the attacking side.
With this in mind, it appears teams would want to utilize tall and heavy ball carriers that they rely on to get the ball across the advantage line. Some even muse that the “small” foraging flank forward is becoming obsolete. Even though the two players, Stegmann and Louw, wear different numbers, they are being used in a similar role at their respective Unions, which make it logical to compare them and also serves to show that the “compact” flanks such as Heinrich Brussow and Stegmann can be devastatingly efficient under the new Law Interpretations, especially in a support role.
Keep in mind that Stegmann has played in all 14 A-team games (The Bulls B-team faced the Stormers A-team on the 15th of May since the Bulls were already so far ahead on the Super14 log that they could afford the luxury of an extra “bye”). Before the start of the season it was decided that Deon Stegmann would be managed correctly and play off the bench in 4 of the “easier” league matches, and to have a quality flank in Derick Kuun to fill his shoes, ensuring that the Bulls never lost momentum.
Stegmann played 773 minutes. Louw played 1140. Stegmann started 4 matches from the bench. It would be unfair to compare sum totals unless these minutes were factored-in somehow. The following 6 tables are basic comparative statistics in the categories; Defence; Contact; Handling and Errors; Penalties; Breakdown (Attack and Defence). The reader is welcome to draw his or her own conclusion, but it appears that Deon Stegmann is the more effective player in the categories provided by ruggastats.com along with indices used to compensate for the differing amount of game time more or less sufficiently. The values in bold in each column indicates which player is “better” or has a preferable stat.
Stegmann has, in total, made 123 tackles; 42 assists; missed 10. Louw, during his higher amount of game time, has made 163 tackles; 29 assists; and missed 17. Since most of Table 1’s stats are “self-referencing”, it seems that Stegmann is a better tackler overall, as well as making more tackles and assists relative to the time spent on the field. Although the player’s individual “pilfer” stats are not given, the “Forced Turnover”-column shows that Stegmann legally forced the ball from attacking players during tackles twice as much as Louw, in much less time, and almost 3 times as much when referring to tackles alone. This is very significant, and may turn a match- seeing as no team can attack and score if they don’t have the ball.
Table1. DEFENCE
Defence | |||||||
Player | Most Tackles in a Match | Tackle Success Rate | Tackles per Minute | Tackles + Assists per Minute | Forced Turnovers in the Tackle | Forced Turnovers per Match | Forced Turnover per Tackle |
Stegmann, D | 21 in 65 min. (vs Blues) | 92.5% | 0.16 | 0.213 | 6 | 0.43 | 0.0489
(4.9%) |
Louw, F | 18 in 81 min. (vs Hurricanes) | 90.5% | 0.14 | 0.168 | 3 | 0.2 | 0.0184
(1.8%) |
It is interesting to note that in many categories Schalk Burger and Louw, who’ve played side-by-side in the starting team in every game except round 3 when Burger was unable to play against the Brumbies due to injury, have similar stats. The two Stormers are coached into, and play a very similar role. Certain of their raw stats are very similar such as:
tackles made; ball carries; offloads, gain line percentage.
Louw, as a weighty 7, is expected to make an impact with ball in hand, but Burger scores more favourably than him in the carrier department. Aside from set-phases, Louw is seen to convert to an openside role and has made 35% fewer meters than Burger, although 3 times the line breaks. Burger orchestrates defences and attacks somewhat and has the ball 30% more of the time (also, due to being a lineout option and a carrier at the back of the maul), 67% more playmaker passes (though this stats may be might be a little too subjective ), 26% more passes. In line with this view is that Louw has attended the breakdown roughly 15% and 70% more on attack and defence respectively.
The application of these flank combinations is a mixture of different schools of thought from the Bulls and Stormers unions and whatever player resources are available. This Stormers duo has been intact virtually the entire season and has lost 4 games. The Bulls with their approach- using an excellent ball carrier such as Pierre Spies, and jack-of-all-trades Dewald Potgieter and Stegmann the “Silent Assassin” in a much more varied manner, have only lost half that amount of games. In one of those games Stegmann played from the bench, and in the other Craig Joubert penalized Stegmann 5 times , against the Reds and Blues repectively.
Are the Bulls twice as effective as the Stormers? No. But a loosetrio combination is one of the most exciting, most talked about and vital aspects in rugby-success. Either way, it is clear that Stegmann makes far fewer ball carries, as he doesn’t need to and when he does he makes an average of 4meters per carry in comparison with Louw’s 5.9meters.
Another important thing to note is that the stats do not distinguish whether the player classified as “carrier”, only seeks to go to ground and set up a ruck, or within a pod. Of course the goal is always to break defences and make enough meters so as to reach the tryline, but when the situation calls for it, players are often willing to go to ground quickly and have the ball recycled. Interestingly, in 8 of Stegmanns 14 game’s averages, he beats the gainline 100% of the time (more than twice the amount Louw does so: 100% in 3 games). The zeros are in games where Stegmann was basically not used as the carrier much at all and was probably from a pod or two. There’s no way to ascertain this as well as the case with the other average gain line percentages without tedious video verification, but if it were so and if it were possible at all to exclude these instances from each player, then Stegmann’s gain line success would be even higher than Louw’s.
Table 2. CONTACT
Contact | ||||
Player | Line Breaks per Carries | Offloads per Carries | Meters Gained per Carries | Gain Line % |
Stegmann, D | (3/36) = 0.083
(8.3%) |
(1/36) = 0.027
(2.7%) |
(143m/36) =4m | 65.43% ** |
Louw, F | (9/94) = 0.095
(9.5%) |
(12/94) = 0.127
(12.7%) |
(558m/94) = 5.9m | 74.60% |
Table 3 is self-explanatory and shows that the player that has enjoyed a more problem-free time on the ball is Deon Stegmann.
Table 3. HANDLING AND ERRORS
Handling and Errors | |||||||
Player | Passes and Handle Counts | Handling Errors | Handling Errors per Match | Handling Errors per Count
* |
Forced and Unforced Errors | Forced and Unforced Errors Per Match | Forced and Unforced Errors Per Minute |
Stegmann, D | 35 – P101 – H/C | 8 | 0.57 | 0.079
7.9% |
7 | 0.5 | 0.009 |
Louw, F | 98 – p184 – H/C | 21 | 1.4 | 0.114
11.4% |
13 | 0.87 | 0.0114 |
*(8/101) = 0.079
(21/184) = 0.114
Table 4 seems to indicate that Stegmann is no liability as some have criticised him of being after a Blues match in which referee Craig Joubert penalized him no less than 5 times (which is but only one penalty more than Louw’s maximum in a single game: 4). Joubert also refereed the only other game that the Bulls lost, prompting the normally diplomatic and reserved and most successful South African Super14 coach (results-wise) Frans Ludeke to exclaim that he thought that Stegmann was unfairly penalized. This area of the game has attracted much controversy and is an area where referees still strive for clarity and have to regularly defend their reputations, most notably in the Super14 final itself, ALSO involving Craig Joubert, where Stegmann was a regular menace at the breakdown- testing the laws, as a good flank should. Subsequent to Burgers’ outburst, Ruggastats have made Deon Stegmann the number 6 of the final, and Burger their 7 of the final…even though Burger doesn’t play at 7, which is a compliment to Stegmann and in accordance with our aim of rather comparing Louw and Stegmann.
According to Ruggastats, Louw was pinged (21) for infringements, more than Stegmann(19). Now it is true that Stegmann spent less time on the field, as the “Penalties per Minute” column shows. But seeing as the breakdown area, which includes the tackle for the most part, is the area where most penalties are being conceded, it seems that it is LOUW who is a greater liability than Stegmann. It is also no doubt true, that any player at any given time would be aware of the match’s current situation on the scoreboard or with regards to the flow and momentum of proceedings, as well as certain other exceptions, to be at liberty to concede a penalty or two. Overall this is very difficult to point out, but the deduction should be able to be made from common sense, that it is the Bulls who could most afford these exceptions. The Bulls have made more counter rucks and cleans than the Stormers overall. Very intersestingly, the Bulls have had more possession, with all their kicking, than the Stromers on all but three occasions, and on two of those they lost. The other was against the Crusaders in the semi final. Surprisingly, the Stormers on the other hand have only had more possession than the opposition on 4 occasions, (Cheetahs, Chiefs, Crusaders and Reds) of which they only lost one. Stats show that going into the play-offs, the Stormers were actually the team to kick the most, seemingly employing the Bulls’s old criticized boring “kick and chase” method. This could explain some of the lack of possession.
The Bulls average 52.24% and the Stormers average 48.36% possession. Perhaps the Bulls feel they have the players to not only secure the ball in the air from up-and-unders, but also the loose forwards to maintain it on the ground.
Table 4. PENALTIES
Penalties | |||||
Player | Penalties | Penalties per Match | Penalties per Minute | Penaties per Breakdown
* |
Penalties per Breakdown + Tackles + Assists
** |
Stegmann, D | 19 | 1.35 | (19/773) =0.0245 | 0.044
(4.4%) |
0.032
(3.2%) |
Louw, F | 21 | 1.4 | (21/1140) = 0.0184 | 0.0566
(5.7%) |
0.0373
(3.7%) |
*19/(297+130) = 0.044 ** 19/592 = 0.032
21/(206+165) = 0.0566 21/563 = 0.0373
Tables 5 and 6 make the role and value of each of the players crystal-clear. Deon Stegmann trumps Francois Louw in all regards, except in the slightest where Louw has been relegated to defensive duty by his team (Table 6.) and has had to make a 16.5% contribution of all defensive breakdowns from his entire team. Although once the effective “strike-rate” per match comparison is made in the final column of table 6, it can be seen that Stegmann makes himself of more use than Louw in this category too. This is so, because the Stormers’s trio seem to be sharing duties. The dirty work that Stegmann puts in, and relating it to the rest of the trio’s stats, seem to free players like Spies up to play his natural game, and has no doubt come a long way in helping Spies for a second consecutive year in being the top try-scoring forward of the Super14 and joint 4th altogether. The stats show that Stegmann has provided more support in attack than any other South African player in the top teams. He has an almost disproportionately high amount of cleanouts/attempts on his own ball rivalled by players like Phil Waugh of Australia. This is a significant cog in the Bulls machine that has seen them claim so much success the past couple of seasons. The fact that there is almost always a support player to help ensure that carriers aren’t isolated and turned over, as well as readily available for driving support is comfort and peace of mind to Stegmann’s teammates.
What makes these figures even more impressive is that ball-poachers have adapted to this seasons new Law Interpretations by hanging just off the breakdowns and waiting till the 2nd, 3rd, or 4th phases to make an attempt at the ball when there are less opposition players in support. In other words the player was actually “present” at far more breakdowns than the stats give him credit for. If breakdown problems ensued, the player was at hand to switch to plan B and provide emergency support. This was seen from all the teams. But very few have done it as well as the players compared here, and as far as the top South African teams go, none have done it as efficiently as Stegmann, according to the stats.
Table 5. BREAKDOWN (ATTACK)
Breakdown (Attack) | |||||
Player | OOA 1-3 on Attack | Cleanouts on own ball per Match | Cleanouts per Minute | Cleanout % of Teams Total
* |
Average % / Minute / Match in Team
** |
Stegmann, D | 297 | 21.21 | 0.384 | 10.9% | 16% |
Louw, F | 206 | 13.7 | 0.184 | 7.7% | 8.2% |
*(297/2727)X100 **(21.21/55)/(195/81)X100
(206/2661)X100 (13.7/76)/(177/81)X100
Table 6. BREAKDOWN (DEFENCE)
Breakdown (Defence) | |||||
Player | OOA 1-3 on Defence | Counter-Rucks, Attempts on Opposition Ball per Match | Counter-Rucks, Attempts on Opposition Ball per Minute | Competing or Counter Rucking % of Teams Total
* |
Average % / Minute / Match in Team
** |
Stegmann, D | 130 | 9.3 | 0.168 | 13% | 19% |
Louw, F | 165 | 11 | 0.144 | 16.5% | 17% |
*(130/1011)X100 **(9.3/55)/(72/81)X100
(165/997)X100 (11/76)/(66/81)X100
In conclusion it is good to remember that Louw and Stegmann have slightly different functions within the dynamics of their respective teams. If one would perhaps rather compare the stats of Stegmann to Burger seeing as they wear the same jersey number, then Stegmann would scrore even higher in the relevant categories. (Anyone is welcome to e-mail me at flankstats@hotmail.com and I will gladly send you the full stats of the flanks as well as some team stats and my calculations, as mentioned above). Burger has impressive running stats, even higher than that of Louws, but Stegmann for example scores almost triple the line breaks per carry (they are not many though); even fewer relative handling, forced and unforced errors (adapted for Burgers more time spent on the ball as and where his team feel they need him); and on breakdown duty Burger has much less of a direct impact with 176 and 50 cleans and counter on attack and defence respectively. This is mostly due to the fact that the role Burger fulfils in his team allows for Francois Louw to do most of the dirty work, hence Louw’s greater penalty count, which reminds us again why rugby fans and critics mistakenly thought that Stegmann was a penalty risk earlier this season. It is also noteworthy that Burger has a tackle efficiency of 87.5% vs. Stegmann’s 92.5% ; Burger has a total of 29 handling errors at a rate of 11.2% vs. Stegmann’s preferable 7.9%; Burgers forced and unforced error rate is also almost 1.5 times higher than Stegmann’s; and Stegmann forces turnovers 3 times as much as Burger in tackles at a rate almost 5 times higher. At the breakdown Burger’s stats are no match for Louw or Stegmann’s.
These are all great players no doubt, and perhaps all worthy of Springbok colours.
Last year saw the Springboks streak to a Tri Nations champions title with an impressive 3-0 series victory over New Zealand. During that season Heinrich Brussow, Stegmann’s 1st team Grey College schoolmate, played a notable role at 6, and forced every coach, player, aspiring player and fan to sit up and pay attention to the value of the “small”, robust, live-wire flank. It is true that this year the new Law Interpretations have been adapted. Subsequently they may have lessened the role and impact of such a player…or have they? It might appear from the stats that they have not, and in particular when considering a supporting role. According to some journalists, the Bulls are the next Super14 dynasty with 3 Super14 trophies in 4 years. They have made excellent use of Deon Stegmann’s services and refer to him as “one of their greatest assets”.
The Springboks are a very strong side that necessitates strong players in every position, so strong in fact that on occasion they might make up for any individual shortcomings or faulty game plan. But currently they are ranked 2nd in the world. Many have singled out Heinrich Brussow for due praise in his contribution to Springbok success in the previous year, many have also pointed out that Deon Stegmann, in the words of Bulls captain and Springbok vice captain, Victor Matfield: ” is the closest player to Brussow that South Africa has to offer”. But Stegmann is his own player that brings his own share of experience and attributes to the table. Interpreting these comments, it seems clear that rugby fans mean to convey that they would like the Springboks to have the breakdown threat and supportive qualities that the Bulls are being afforded at the moment. The Springboks already have Pierre Spies and Dewald Potgieter– Stegmann’s incumbent Bulls loose trio teammates.
Dankie GBS dat jy ELVs reggemaak het. Kan jy dalk asb die spasies tussen die woorde in die Tabelle regmaak asb. Dit lyk asof hulle alles aan een loop nadat jy dit oorgeplaas het. Net sodat mense beter sin kan maak van die inligting asb, die spasies soos dit is in die dokument wat ek aan jou getsuur het. Dankie.
Ek sien my artikel is onder “General, Super14” en McLook se poging was onder “Fun”, maar nou’s dit verander. hehehe, moes dit so gelos het man.
1@ Die Blou Kuberruim Wandelaar:
Dink die spasiering is nou reg, die flippen HTML is partykeer ‘n bliksem, veral met tabelle.
@ grootblousmile:
O okei, dankie.
Maar bv op tabel 6, in die 3de en 4de kolomme staan “R” aleen, en ek wou “fussy” wees en die woorde meestal een per lyn he en in die middel vir netheid, nes in die woord dokument. Dit sou soveel makliker gewees het as ek “author status” gehad het 😉
Nee, weereens dankie. Nou wag ek ook net vir die poll… 🙂
4@ Die Blou Kuberruim Wandelaar:
Flok, as jy Author Status gehad het moes ek nie al hierdie foute regmaak nie want dan kon jy daar en dan op die Visual Editor die ding bou en tabelle insit….
Poll?? – Jy bedoel seker die Poll om te vra wie van DBK Wandelaar of McLook is die meeste reg… of is dit dalk wie van julle 2 gee my die meeste werk?
5@ grootblousmile:
🙂 hehe, sorry man. Dalk is die tydsberekening `n bietjie uit? Moes dalk die ding op gesit het in die middel van die week wanneer almal verveeld is en tyd het om kommentaar te lewer.
Elkgeval, ek sal die link na JJ Harmse van die Beeld toe stuur, sodat hy daardie arme Louis de Villiers kan reghelp. 😉
Gbs, broer your post regarding the poll is an absolute classic – I read it about 10 minutes ago and I’ve only caught my breath enough to post now, hehe!!
DBKW, I must congratulate you on an epic piece of camouflage and subterfuge – all in perpfect Queen’s English. Well done!!
7@ fender:
Ok dankie.
Queens English?
camoflage?
🙂
No. As the the heading says “another perspecive”. I appreciate McLook’s articles, he did start me on this.I thought it was very interesting with his comparison for Spies and Vermeulen. Then I went to check up on the stats, and found that you have to refine the raw stats to make sense out of them, and that if anything else I think with all due respect to McLook, he was more busy with advocating for the WP players, which is normal. I think I have layed it out clearly in the article enough for anyone to make his own opinion, but unfortunatley what should come with it is the stats excel file, which I will forward to any person who ask for it. Just e-mail me with the e-mail adres in the article.
But ja, I think some columns need some more explanation if you are not willing to go too deep with it, just to make it clearer, but it is already very clear, and I let the stats speak for themselves and I found that both are very good players, it is just simply that one of them has not gotten recognition and I believe he has a very strong case.
Of hoe se jy?
Die Blou Kuberruim Wandelaar wrote:
That remark is unfair (I want so say absoulue bullshit but I’ll wont) to say the least. I have no agenda; never had one when it came to these stats (on another website the province fans accused me for being pro bulls). In fact I don’t care who won the stats contest. It was just interesting info for me. You one the other hand clearly have an agenda.
You didn’t find or report anything different from my analysis. There are however a few main differences in the two articles. I reported the data objectively while you set out to to argue a case for Stegman and you used seletive sets of data to do just that (built an case for Stegman). For instance 5 of your 6 tables were on the areas that Stegman clearly won (in my analysis). So all you did was used the info in which Stegman are strong (because of how he is used by the bulls) you then broke that info up into 5 tables (too over empasize) and adjust for time to make it look even more impressive. Why so much emphasis on essentailly the same info/data and why then adjust for time on the field if Stegman already won the category? Just to make him look even better?
In table 1 you also went and pick Stegmans best game to argue a point. All players have good and bad games and selecting one situation does not prove anything.
Blame shifting is alo not on like blaming the referee for Stegman penalty count. The reality is players will play diffent referee’s and should adjust to them.
Lastly but most importantly any comparisons adjusted for time (spend on the field) will always favour the player having spend the least amount of time on the field. For instance if I create a circuit with rugby specific tasks (like running from one station to the next doing wresling for the ball or picking up the ball needing to catch the ball making passes and so forth) and count the number of times the player does the tasks and rate his accuracy and then adjust for time the player will always do better the shorter the duration of the test/circuit. The longer the circuit runs the slower the player will get and the more mistakes will be made.
However after having said all that I did enjoy reading your article. I think you’ll make a good laywer and might even convice some jury members but for me you just confirmed what I found and argued all along.
Mmm. Ek hoop julle het gister se game gekyk en dat die opsessie met statistiek nou end sal kry! Die Louw, Burger en Spies kombinasie gaan nog baie games vir SA speel. En menigte toeskouer by gister se game was dit eens dat Louw MOM moes gewees het.
Stegmann is te lig in die broek om ‘n boktrui by een van hulle aftevat.
@ McLook: @9
First I want to apologize for having made the remark about “advocating” in your ansence seeing as you weren’t here to defend yourself, I meant it purely in terms of your articles stance. Not in terms of an “agenda” so much…and the rest was poking fun at you, OK?
Even if your aim was to be objective over the players you compared in your article, you conclude in your “Stegmann vs Burger” piece *link* that:
“…notwithstanding, the data speaks for itself and there may be no doubt that Schalk is the better player.”
…that AFTER you mentioned their difference in role.
Now, I want to state clearly, the reason why I state TWICE in the article- in the beginning and at the end, that ANYONE is welcome to get the fulls raw stats that I compiled(e-mail me at flankstats@hotmail.com) (straight from Ruggastats) AS WELL as the calculations, is because of the following:
-This information is critical, but the article is long enough already, so I would like it to be free for everyone to see.
-I USED EVERY SINGLE STAT AND CATEGORY PROVIDED BY RUGGASTATS (except kicking-for obvious reasons), EVERY SINGLE ONE OF THEM. I didn’t leave anything out, or go about being selective. The “playmaker” passes per pass or handle count was not used as I stated in the article, (And I didn’t even want to use them, as I said, in my comparison of Burger and Louw, although Louw scored three times higher. I explained this also in terms of how the two flankers are used in tandem in their team)
I explained my approach in adapting the stats for the minutes very carefully (if you read carefully).We both agree that this had to be done in order to compare the stats in first place. If there is a problem with my highlighting of the “highest tackle count in a match”, then one could simply not highlight them as is the case in column 2 of Table 3.
But when criticizing “my” data, let me begin my defence in a short critical review of yourS;
In your Burger vs Stegmann piece:
You often use raw average, not adapting for Burgers obvious more minutes played and did not explain this, and YOU TOO proceed to highlight Burgers stats as if to say that he “scores better” in these categories. Where did you get your turnover stat? In raw data AND RATE, Stegmann scores much higher than Burger (and I state in the article that it is a small number). Why did you put an equal number down? Stegmann scores more than 3 times higher.
You never eplain some of your “calculations” and you never offer to release your database. Yet you criticize me on also making the calculations?!
NONE of your stats are adapted for minutes played and this the uses to argue that Sschalk is “by far better” (in your words).
Furthermore one finds FUALTY INFORMATION in your article:
TABLE 1:
column 2-Burger’s assist figure over an average is 3.5 and not 3.86.
column 3-This stat is unexplained and the informatio doesn’t exist.
column 5- Burger misses more tackles, YET you highlight it as a positive?! I know that you might have missed it, but it mistakenly gives the impression that Burger is “far better” to the casual reader. And then you go on to explain in your first paragraph that Burger makes 3.1 times MORE tackles per match?! Where did you get this info? You info is purely imaginary. Explain to us how Burger has made 3.1 times the tackles, even by averages aswell as ignoring minutes. Of course this is easy to see this mistake, but nevertheless the impression is made for your bias.
TABLE 2:
column2- Just like my stat that you criticized on mot tackle in a macth with time included, here you use the pass count and highlight it in order to say Burger was better? How does passing more when you have the ball make you a better player? that’s why I didn’t use a bogus stat like : “Passes per handle count”…because it doesn’t make sense and has no bearing on the argument!
Column5+6- The data here used in your average are both wrong, you make Burger higher in each case.
TABLE 3:
You make no attempt to explain anything about penalties and your categories are lumped together.
@ McLook: @9
Secondly,
In your follow-up article on Louw vs Stegmann:
TABLE 1:
Column 4 (missed tackles)- You stat is horribly wrong and this is wrong used to make Louw appear better(we are obviously using these stats to make a point, and hence the articles we write): you state
Louw=1.13, Stgemann 1.17. How did you work this out?! It is Stegmann 0.7, Louw 1.13. So the casual reader gets the impression that Louw is a better tackleer. In my article it is clear that Stegmann even has
a better “tackling efficiency”, WHICH YOU FAIL TO EVEN MENTION! And you criticize ME for being biased and selective on stats. I let the stats speak for themself.
TABLE 2:
Column 2, 4: Once again using “passes” to make an argument for a better player. Once again using “handle count” in your argument for who is a better player. I clearly state this in my article and hence I
don’t highlight them in the column I provided (Table 3. Column2 of my article)
Column 7: You never release the full stat and And never explain how you came to this number. Where did you get it? How did you calculate it?
TABLE 3:
Column 2- This stat is incorrect. Stegmann has less penalties in total, it is only on minutes played that Louw scores lower. Once again it is YOU who have not only provided faulty stats, but also no
calculation, and still use the “highlight method” to give the mistaken impression that Louw is “better”.
TABLE 4:
column 2: This is incorrect. It is not per minute, or per match, yet you state you tried to correct per minute, yet the reader could never begin to guess how you came up with this stat.
column 3: ONCE AGAIN incorrect. Stegmann missed fewer takles, whether you look at it “per match”, “per minute” or any other way. How did you calculate this incorrect stat? Why then do give the mistaken
impression that Louw is better when infact he fared more poorly in this stat? (Remember we ARE using these stats to make a point, are we not?)
column 4: Once again unexplained, and NOT adapted. I clearly show and explain intext concerninf carrying and that Louw has made 5.9meters for every 4meter that Stegmann made.
You go on to explain in paragraph 5 that “Louw was indeed better with ball in hand and missed less tackle”-when ,as mentioned, LOUW missed more takles not Stegmann. You claim that yyou’ve corrected for
minute played, but never relvealed your formulas (as I have done in the articel , and offered to make available by e-mail of the spreadsheets.). I have found that your stats are invalid, nd therefore serve a
minimal purpose. (Actually none in the case of your faulty stats, and as mentioned in post commentary, Verusco was to be used and the stats may differ wildy, YET some of your stats have a too large a HUMAN
error. Your error is then used in your “case against” Stegmann. This is unfair to the player, unfair to the reader, AND goes against the whole ppoint of the exercize in the first place.)
column 9: Here is an example where you have actually made Louw look “bad”. in an averaged stat, how does poor old Louw score 0.14 to Stegmanns 21.5? It isn’t even entirely correct to adjust the mistaken
order of magnitude.
You have criticized ME, in saying that I have an agenda, yet YOU conclude your 2nd article with:
“My data as well as my own eye have proved that Francois Louw is aa seriously good player” (Obvious in your reference to stats in an article about stats comparison of two players, it goes without saying that
this mention is at the expense of Stegmann. Then you go on to say that Stegmann impressed you in the Crusaders game and mention basically only in reference to his ability to disrupt opposition ball, which is
bordreing on the illegal. My article shows that, although Stegmann is used in a support role (as I mention), he is a contender in every other function where Louw on the other hand is a ball carrier and hence
the number on his back.
To conclude:
I used every single stat (With the exception mentioned above here in my first post.) WHAT DID I LEAVE OUT?! In fact I offer the reader far more information by including other relevant indices, that you have
criticized me of preferentially displaying for the sake of Stegmann.
Regarding intensity of play:
It is of course naturally generally so that intensity is higher per shorter time unit and time spent. It is also often an ASSUMPTION we have to make, and the times in certain matches are very close. This
doesn’t tell us about the players attitude when he tires, but we do assume so out of common sense. It is not to say that Stegmann couldn’t play a full match or even that he was as exhaused when he came off
the field for a shorter, intense match. This is partly assumption. If Stegmann was to play full matches, of course when would assume that his stats would adapt accordingly and one would see his “tackle count
per minute” taper off. Alot of defense is how you get yourself to the relevant points on the field in order to defend and is obviously affected by fatigue. But you assume that Stegmann couldn’t get aroung at
the end of 65 minute spell. Further in the role he being used, he tire more in anyway- that is my assumption- yet he still appears to “beat” Louw in most categories, regardless if it were possible to adjust
the figure for an exponential taper in form due to fatigue. The statistical difference in many of the categories are so varied and so concise, that in many instances this point of your would be relevant, but
still the outcome the same; and our point of comparing the two and highlighting each category still in effect as my article states.
You have used two artciles, one for Stegmann vs Burger, and Stegmann vs Louw. YOUR conclusions BOTH times, albeit not put contentiously, is that on both count Stegmann is “inferior”. I have found your
article to be of little use at all, your stats incorrect, and your explanations of little help. In my article (With the intensity/fatigue issue debateable-but ONLY for some stats AS OTHERS ARE CLEARLY SELF-
REFERENCING and a player that makes more errors so significantly just due to 10-15 minutes extra play is in anyway not good enough), it is clear that Stegmann is better in all main categories, except ball
carrying (for which I refer to roles of players in the artilce, and Louw is a 7 Stegmann a 6). This is a very different picture to the one that you paint, and I believe that Stegmann doesn’t get the credit
that he deserves and is further doen in by your approach on this site for all to see.
The selection process has to be “organic” as stated more or less in both, but the selectors are definitely not free of politics, as we are so used to in South Africa,and the selectors are human and fans just
like you or me. Slightly more object would be a consideration of the stats, and hence I wrote the article and my opinion is that, all things considered, Stegmann is a better player and I would rather have
chose him. Purely on his merit form, on also due to the fact that most of the Bok forwards are Bulls, and that Stegmann would eventually be playing with his provincial combinations, escpecially the lossetrio
of Spies and Potgieter.
In these regards, I conclude that the casual reader can find much more value in my article for the point of the matter than both of yours combined.
10@ KingPaul:
Louw het n briljante wedstryd gehad, nis daaraan te twyfel nie. Maar om te se Stegmann is te lig in die broek om die “Boktrui af te vat”, is soos om te se Brussow is nie goed genoeg vir die Bokke nie. Stegmann en Brussow is baie dieselfde soort speler, Stegmann kon Brussow nou al verby gevat het met sy form op 6. Speeltyd en ervaring maak saak, maar in die talent afdeling glo ek ook dat Stegmann net so goed indien nie beter as Brussow is nie.
11@ Die Blou Kuberruim Wandelaar:
*link* The links for McLooks articles:
The link to the Burger versus Stegamnn article is: rugby-talk.com/?p=13426
The link to the Louw vs Stegmann article is: rugby-talk.com/?p=13448
@ McLook:
9
” I reported the data objectively while you set out to to argue a case for Stegman and you used seletive sets of data to do just that (built an case for Stegman).”
I’ve already establish in the above posts that my data wan’t selective, and that in fact I used more categories than you. It isn’t my fualt that the data show that Stegmann “scores” better in the method that we both have used. Just becaues I made fun about being a biased Bulls supporter you have adopted this mentality towards me, unnecessarily and the accusations isn’t beared out by the facts.
” So all you did was used the info in which Stegman are strong (because of how he is used by the bulls) you then broke that info up into 5 tables (too over empasize)”
As already mentioned I used more of everything than you did, And I didn’t “break” the stats up into 5 tables or categories–This is how they are on the site, and I put the relevant categories together. Because that makes sense, unlike yourself who has lumped together different types of categories. And “OVER EMPHASIZE”? I state every category once, and there is no need to beat the reader over the head with it. I tried to make the article short as possible. Can you give me an example of where I repeated and over emphasized anything that wsan’t relevant???
“Blame shifting is alo not on like blaming the referee for Stegman penalty count”
I made it very clear, tha in the relevant areas, Louw was penalized MORE THAN Stegmann. Louw even had a higher total penalty count, I don’t know what you are referring to. This is nonsense, Louw scores better in “penalties per minute”, but the adjustment has to be made since I’ve abviously demonstrated that eventhough Stegmann played less minutes, he put himself in positions to conced penalties far more, (Intesity-wise and in total), BECAUSE these are the areas in which penalties are given away! Why does it not make sens then to point this out?! Is it because it makes Louw look worse? Both are excellent, But Louw’s les per minute, is because he didn’t put himself in position to concede penalties as much as Stegmann did. Most penalties are awarded at the breakdown, and hence the whole controvery this year with the interpretations and refs, and these two players are eatly those that concede in that department. So you see it makes perfect sense, and in fact I didn’t even “spin” anything- I just put the rates down…AND then I explained it so that if you felt it was irrelevant, then move on, and my artilce has less validity. But it is highly relevant. What is you point on this then?
You seem to just try to shoot me down as a “biased Stegmann supporter”, and claim your stats do the talkng-so do mine and mine aren’t incorrect and have explanations in every sense as well as a database that I am willing to release.
9@ McLook:
“However after having said all that I did enjoy reading your article. I think you’ll make a good laywer and might even convice some jury members but for me you just confirmed what I found and argued all along.”
I have stated so many times that my database as well as all my calculations etc are available, so why would I want to get away with being selective of the stats, give me your e-mail, or just e-mail me, or contact GBS and get it and see for yourself. I’m sure you wouldn’t want to do the effort, and it seems trivial and meaningless. But you saw the sense to write 3 articles on stats in the first place, for which I am greatful as it got me interested too. In the same way one could argue that rugby itself is meaningless etc.
I did this articel (first I wanted to do my own on Pierre Spies vs Vermeulen,then I ealised that there is a far more inaccurate view of the flanks and far more to be said), I did this because I believe that Stegmann isn’t getting his due credit like another blogger noted on heere recently. And I point this out because I wan the best for the Boks and critical views are beneficial and healthy for our rugby like competion, and as fans/supporters and bloggers we feel that we would like to have a say and right to criticize selections and it makes us “involved” and we are all rugby fans. It is our passion.
9@ McLook:
“You didn’t find or report anything different from my analysis”
Our finds, our conclusions, our reports and our analyses are completely different. Not our goal in putting forward the articles though. This is a nonsense statement, and you should perhaps rethink your stance.
@ McLook:
“Why so much emphasis on essentailly the same info/data and why then adjust for time on the field if Stegman already won the category? Just to make him look even better?”
No, wrong again,for a good example of putting forward enough info, look at TABLE 6, column 5+6, the last two columns:
In column 5 Louw scores better in that on bulk, total figures, he made a 16.5% contribution to the same category of the teams total (You have to compare things of the same unit).
Now, look at column 6. Stegmann suddenly scores better than Louw, this is because while Stegmann only made a bulk total contribution of 13% defense to the team, when looking at his contributional average per match and “strike rate” (because of the adjustment allowed for minutes), one can see that Stegmann has a higher workrate than expected. This can be verified now by the stat and the “eye” on matchday, do you see now?
How is this not relevant to the discussion? This is another example where I have provided more information for the reader, regardless of which player it may benefit, and it clearly serves its purpose. Why then have you criticized my provision of information, because it makes Stegmann “seem a better player”? Well maybe he IS in fact a better player with regards to workrate. Did you ever think about that? The more stats provided and calculations made (and all openly and verifyable and explained of course, as I strive to do…the more would/should become apparent which player is “better”, isn’t that so? Thus the stats and the players can do the talking for themselves, and your criticism of me in this regard haas been abolutely unfair.
I hope you reconsider your stance, and see the validity of the argument.
9@ McLook:
“There are however a few main differences in the two articles. I reported the data objectively while you set out to to argue a case for Stegman…”
Is that your objective opinion? 😆
9@ McLook:
“and you used seletive sets of data…”
Pardon me, but I still can’t get over how you can justify that statement. I used everything that you used in tables and that was available from Ruggastats, and MORE. I calculated obvious and relevant stats that have to do with the relevant catgories. I didn’t add anything that should rather not be there, unless for descriptive purposes, and the rest are explained in-text.
It wouldn’t make sense, for example, to have an index or something sinilar for; “Handle Count per Minute” or “Passes per Handle Count”. So I didn’t do it. Which of my “categories” are irrelevant? Which don’t serve their purpose?
Actually, with regards to my posts 11 and 12 (my defence andmy critique of your aricles), I made it clear that it is in fact YOU who provided redundant and irrelevant columns, yet you criticize me for this very same thing, but you do it yourself.
Ok, that is part of my defense and for clarity’s sake. Which is important for our purpose of posting articles in the first place, and making Rugy-Talk.com stronger. Not to mention any insights perhaps that anyone could gain and views that are shared.
I hope that you will respond soon.
Here’s my stance on the matter:
Both Deon Stegmann and Francois Louw are excellent players, but their roles and Application is so radically different that it basically comes down to a travesty to compare the 2 from a perspective of who is best.
The critical role Stegmann played in key matched for the Bulls underline just how important he has been in their cause. We all know he plays a breakdown role, arriving there first, either pilfering ball or more importantly slowing opposition ball down.
Similarly the role Francois Louw played in the Stormers setup was equally impressive in a team where 2 traditional blindsiders are used, carrying the ball up, gaining running metres and pilfering ball in ground ball situations.
There is no country in the world with such riches at looseforward as South Africa, not even the much vaunted New Zealand…. not by a country mile!
Depending how you want the Bokke to play, the role that the coach carves out for flankers, will depend who you select…. and there seems to be a reluctance to use the Bulls pattern of Classic Loosie Combo (where Stegmann was key) even to some extent there was a reluctance to choose Heinrich Brussow a year ago…. well he certainly proved them wrong and made a strong point for the Classic Combo.
With this I’m not by any means saying Peter de Villiers is wrong in choosing Francois Louw, we saw him having a blinder yesterday, and a near Man of the Match performance, against France, SA’s 2nd biggest ever rivals.
What I’m pleading for is an understanding of the differing roles and a joint celebration on the merits of both players. The fact that we debate their value is, to me, an indication just how highly we rate both… in fact an indication how highly we rate all our South African loosies.
Long live the loosie battle!!
22@ grootblousmile:
I think there is indeed a comparison to be made between the two flanks, and the player with the closest role to Stegmann’s in Stormers camp is Louw.So I do not think that their application is so radically different that it makes articles such as this irrelevant.Regarding the differences in roles: this has been refered to enough in all the articles.
I think if one were to take McLooks three articles and mine, and lay them before objective readers from different backgrounds and persuasions, they would be able to find more sense in mine. When reading his articles (especially on the flanks) I found it hard to navigate the info since it was sparsely annotated, and the certain relevant categories not explained at all.
It was only when I sought clarity and went and did my own research, that I realized where his errors were in data gathering, data processing, data presentation and his overall opinion that he then proceded to draw…from that exact same data! This then prompted me do my own analysis and ask permission to place it in an article, which together along with the separate (for obvious reasons) database of mine -that is available to anyone- is not only a much better representation of the stats, but also easier to read/make sense of, and where I then drew MY conlcusion and opinions from.
Yes, I am a Bulls supporter. Yes, Stegmann is a Bulls player. So what? I didn’t go and make a case for every Bulls player (some don’t need it, and some…well…aren’t good enough). But Stegmann is another story altogether and has a very good case, and is very underrated.That is why I felt slightly compelled to write the article, and it is also because it was fun- sort of like a hobby. I believe the article is efficient enough in letting the data speak for itself. Is there any stat/category/index that you felt should be included? (gerig aan McLook.If you think so, what are they?) You can see that I included everything that was available to me and more, and provided more food for thought than his articles on the flanks, which is my opinion anyway.
I know it is very difficult to compare the two via stats to find wich is “better”. That’s why I started my article with an explanation of this.There is validity overall in such an article, and which is why to some extent it has been done numerous times by others. I think that there is information enough to go on to deduce who has, for exmaple:
a higher workrate, better tackling efficiency etc..(not so much in this case with 92.5% vs 90.5% of Stegmann and Louw, but Burger for example has in every year scored round about 5+ % less in his effiency than Stegmann when he came to the Super 14, and before then), thus if I was to wonder which of the players compared are better at, say, tackling, I could say;” STATISTICALLY SPEAKING, Stegmann is better”.
You see? (Kind of like saying: “If I was to let a player kick a penalty to save my life who would it be? Morne Steyn or Peter Grant?” I’d look at the stats and perhaps say Morne Steyn, which leads some immediately to think that Steyn is the better flyhalf, AND it is definetly considerations such as THESE that would lead (even atleast in part) to certain selection choices, and that GBS, means the difference between Bok, and no Bok. Your name in the annals of history forever, or your name fogotten…
The problem with this article is that it is too analytical,yes one guy might have better stats in a certain area than the other but I know stats dont lie but they can be misleading.. To use a cricketing analogy its like saying a test match hundred against Bangladesh is the same as a test match hundred against Australia.. Like Gbs said they play two competely different roles so I find it very difficult to compare to two. I feel Stegman is a true fetcher in the Heinrich role where Francois is a combination between a true fetcher and an opensider.
Die Blou Kuberruim Wandelaar wrote:
Listen maate. I’ve read you article and you have not repoptred anything different in the sense that Stegman is better at the breakdowns and Louw is better with the ball in hand. I’ve stated that Stegan probaly play under instruction and that I do believe that influence his game meaning that he could probably be a better carrier of the ball if he need to be.
I don’t have the time or inclinatioon to read your elaborated response(s) here as it is clear to me that you seems to be obsessed about Stegman trying to prove something. This is one of that never ending prove myself correct situations and I am just not interested in this sort of on going ego trips.
I’ve got other work to do and frankly just had enough of this whole issue.
Nothing you wrote changed my mind to the slightest; the data is clear there is nothing more to debate here. Get over it.
I meant blind side and true fetcher 🙂
23@ Die Blou Kuberruim Wandelaar:
Well, debate is alive and well… long may that continue, that is the essense of any rugby blog… and definately of Rugby-Talk.
You see, exploring stats is just that… an exploration of data… the measure is often subjective and because of that somewhat tainted, seeing as stats can ALWAYS be MANIPULATED.
I principally believe in what my eyes see for themselves and can proudly say I saw every minute of the play of both Stegmann and Francois Louw this Super 14.. and have formed my own opinions based on personal observation.
I have often advocted the Classic Looseforward Combination as the best and have a special interest in Looseforward play seeing as I played Openside Flank till the age of 26 myself. One tends to look very closely at the position one played yourself, therefore I will stand back and listen what Tighthead, for instance, says about the role of props and the front row… that is HIS speciality, not mine.
This said, there is merit in both Stegmann or Brussow playing for the Springboks or Francois Louw and / or Schalk Burger playing for the Springboks.
Let me ask this, do you agree that South Africa can probably field 9 – 12 Quality Loosies in a Test scenario, with none of them letting the side down? That is the riches I’m talking about!
I’m a big fan of Willem Alberts,he is a monster of a man at 8 and can give cover at 4 and 7,one of the Sharks few decent buys this year.
27@ grootblousmile:
Yes stats can always be manipulated, but they can also be objectively analysed for the relevant subjects and put forward without bias. That is what I aimed to do in my article. The stats do serve a purpose, more than what I mentioned @23. And it is good tha tMcLook sought to try and make an article of it a couple of times. It is good food for thought, I think.
@ Winston:
I am also a Alberts fan, moving to the sharks was a good move, at least he missed the nightmare Lions season.
25@ McLook:
McLook wrote:
You say that you haven’t read my “long posts” in response to your criticism of me, yet you may criticize me? What’s the point if I can’t respond?
Furthermore you claim that I don’t report more than you. Obviously I cannot repeat the whole article in the commentary block here, but it is also clear- from your own words- that you haven’t even read all my material/remarks.
So how can you make such statements. I have no obsession with Stegmann, I am simply carrying on in the spirit of the articles posted. Otherwise what purpose do they serve? What is then the point even of having a rugby-blog like this one as myself and GBS point out in posts 23 and 27 respectively.
This is no way to respond to my article on this blog, is not in the “spirit of things” and the unbiased or not so unbiased reader can then safely assume that I have “won” any kind of debate that has arisen and the presentation of the statistical data that I have put forward is in fact superior.
It is of course unnecessary and out of place to have worked in a rebuttal of your work into my article…HENCE the commentary bloacks.
So don’t bother responding until you’ve read it. I point out clear for all to see, the fallacies in your “arguments”.
Irrational responses such as those @25 are non-productive.
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