Head to Head
| Premiership Rugby Shield | 2015/12/28 15:00 | Harlequins v London Irish A | L | 34-7 |
| Premiership Rugby Shield | 2014/12/15 19:30 | London Irish A v Harlequins | L | 7-12 |
Home History
| Premiership Rugby Shield | 2016/04/11 18:30 | London Irish A v Bath United | L | 0-17 |
| Premiership Rugby Shield | 2016/03/28 18:00 | London Irish A v Exeter Braves | L | 0-36 |
| Premiership Rugby Shield | 2015/12/28 15:00 | Harlequins v London Irish A | L | 34-7 |
| Premiership Rugby Shield | 2015/12/21 19:30 | London Irish A v L. Wasps | L | 7-36 |
| Premiership Rugby Shield | 2015/11/30 19:30 | Saracens Storm v London Irish A | L | 36-5 |
| Premiership Rugby Shield | 2015/11/23 19:15 | Bristol United v London Irish A | L | 24-14 |
| Premiership Rugby Shield | 2014/12/22 19:30 | Bath United v London Irish A | L | 44-5 |
| Premiership Rugby Shield | 2014/12/15 19:30 | London Irish A v Harlequins | L | 7-12 |
Away History
| Prem Rugby | 2017/05/06 15:00 | Northampton v Harlequins | L | 22-20 |
| Prem Rugby | 2017/04/28 18:45 | Harlequins v Wasps | W | 32-13 |
| Prem Rugby | 2017/04/14 18:45 | Harlequins v Exeter Chiefs | L | 26-39 |
| Premiership Rugby Shield | 2017/04/10 18:30 | Bath United v Harlequins | L | 34-7 |
| Prem Rugby | 2017/04/08 15:30 | Saracens v Harlequins | L | 40-19 |
| Prem Rugby | 2017/03/25 15:00 | Harlequins v Newcastle Red Bulls | W | 53-17 |
| LV Cup | 2017/03/12 15:00 | Exeter Chiefs v Harlequins | L | 24-7 |
| Prem Rugby | 2017/03/04 15:00 | Gloucester v Harlequins | W | 27-30 |
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