Log after Round 5 (21 March 2015)
Ireland are the RBS 6 Nations winners of 2015, by virtue of a better points-difference over the total tournament!
| Pos | Team | P | W | D | L | PF | PA | PD | BPts | Pts |
| 1 | Ireland | 5 | 4 | 0 | 1 | 119 | 56 | 63 | 0 | 8 |
| 2 | England | 5 | 4 | 0 | 1 | 157 | 100 | 57 | 0 | 8 |
| 3 | Wales | 5 | 4 | 0 | 1 | 146 | 93 | 53 | 0 | 8 |
| 4 | France | 5 | 2 | 0 | 3 | 103 | 101 | 2 | 0 | 4 |
| 5 | Italy | 5 | 1 | 0 | 4 | 62 | 182 | -120 | 0 | 2 |
| 6 | Scotland | 5 | 0 | 0 | 5 | 73 | 128 | -55 | 0 | 0 |