| Referee | P |  |
 |
 |
P / C |
|---|---|---|---|---|---|
| |Neil Hennessy | 2 | 1 | - | - | 2 |
| Nika Amashukeli | 2 | 1 | - | - | 2 |
| Steve Walsh | 3 | 1 | - | - | 3 |
| Mike Adamson | 5 | 1 | - | - | 5 |
| 5 | 1 | - | - | 5 | |
| Christopher Ridley | 5 | 1 | - | - | 5 |
| Craig Joubert | 6 | 1 | - | - | 6 |
| Alain Rolland (Ire) | 7 | 1 | - | - | 7 |
| Matt Carley | 14 | 1 | - | - | 14 |
| Wayne Barnes (Eng) | 30 | 1 | - | - | 30 |
| Nigel Owens | 32 | 1 | - | - | 32 |
| Sam Grove-White | 1 | - | - | 1 | 1 |
P = Matches played,
C = Cards .