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 |
Home History
| Premiership Rugby | 2016/04/02 14:00 | Harlequins v Newcastle Falcons | W | 46-25 |
| Premiership Rugby Shield | 2016/03/28 18:30 | Saracens Storm v Harlequins | L | 28-21 |
| Premiership Rugby | 2016/03/27 14:15 | Northampton v Harlequins | L | 29-23 |
| Premiership Rugby | 2016/03/19 15:00 | Harlequins v Worcester Warriors | L | 15-21 |
| Premiership Rugby | 2016/03/11 19:45 | Harlequins v Bath | W | 35-28 |
| Premiership Rugby | 2016/03/05 14:30 | Sale Sharks v Harlequins | L | 29-23 |
| Premiership Rugby | 2016/02/28 15:15 | Wasps v Harlequins | L | 42-10 |
| Premiership Rugby | 2016/02/19 19:45 | Harlequins v Leicester | W | 25-19 |
Away History
| Premiership Rugby | 2016/04/02 14:00 | London Irish v Sale Sharks | L | 15-30 |
| Premiership Rugby | 2016/03/26 17:30 | Worcester Warriors v London Irish | L | 12-6 |
| Premiership Rugby | 2016/03/20 15:00 | London Irish v Gloucester | W | 23-18 |
| Premiership Rugby | 2016/03/12 20:00 | London Irish v Saracens Rugby Club | L | 16-26 |
| Premiership Rugby | 2016/03/05 15:15 | Bath v London Irish | L | 25-17 |
| Premiership Rugby | 2016/02/28 15:00 | Leicester v London Irish | L | 47-20 |
| Premiership Rugby | 2016/02/21 15:00 | London Irish v Exeter Chiefs | L | 15-22 |
| Premiership Rugby | 2016/02/13 15:00 | Northampton v London Irish | L | 35-7 |