Head to Head
| Premiership Rugby | 2015/12/05 15:00 | Harlequins v London Irish | W | 38-7 |
| Premiership Rugby | 2015/03/07 15:00 | Harlequins v London Irish | W | 26-20 |
| Premiership Rugby | 2014/09/06 15:30 | London Irish v Harlequins | W | 15-20 |
| Premiership Rugby | 2015/12/05 15:00 | Harlequins v London Irish | W | 38-7 |
| Premiership Rugby | 2015/03/07 15:00 | Harlequins v London Irish | W | 26-20 |
| Premiership Rugby | 2014/09/06 15:30 | London Irish v Harlequins | W | 15-20 |