| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 4 | Alan McGowan | Stade Francais | 25-09-1998 | Match details |
| 4 | Alan McGowan | Stade Francais | 17-10-1998 | Match details |
| 4 | Alan McGowan | Scarlets | 19-09-1998 | Match details |
| 3 | Ritchie Murphy | Begles-Bordeaux | 09-10-1998 | Match details |
| 2 | Alan McGowan | Scarlets | 06-11-1998 | Match details |
| 1 | Alan McGowan | Begles-Bordeaux | 31-10-1998 | Match details |
