Head to Head
| Premiership Rugby | 2019/03/10 13:00 | Harlequins v Gloucester | L | 7-29 |
| Premiership Rugby | 2018/09/29 14:00 | Gloucester v Harlequins | W | 25-27 |
| Premiership Rugby | 2018/04/14 14:00 | Gloucester v Harlequins | L | 37-9 |
| Premiership Rugby | 2017/09/09 14:00 | Harlequins v Gloucester | W | 28-17 |
| Premiership Rugby | 2017/03/04 15:00 | Gloucester v Harlequins | W | 27-30 |
| Premiership Rugby | 2016/12/27 16:00 | Harlequins v Gloucester | W | 28-24 |
| Premiership Rugby | 2016/02/13 15:00 | Gloucester v Harlequins | L | 28-6 |
| Premiership Rugby | 2015/12/27 16:30 | Harlequins v Gloucester | D | 39-39 |
Home History
| Premiership Rugby Cup | 2019/09/28 14:00 | London Irish v Harlequins | W | 18-21 |
| Premiership Rugby Cup | 2019/09/20 18:45 | Harlequins v Bristol | W | 24-12 |
| Premiership Rugby | 2019/05/18 15:00 | Wasps v Harlequins | L | 27-25 |
| Premiership Rugby | 2019/05/03 18:45 | Harlequins v Leicester | W | 23-19 |
| Premiership Rugby | 2019/04/27 13:00 | Exeter Chiefs v Harlequins | L | 17-15 |
| European Rugby Challenge Cup | 2019/04/20 19:00 | Clermont v Harlequins | L | 32-27 |
| Premiership Rugby Shield | 2019/04/20 14:00 | Gloucester United v Harlequins | L | 53-19 |
| Premiership Rugby | 2019/04/13 14:00 | Harlequins v Northampton | L | 19-20 |
Away History
| Premiership Rugby Cup | 2019/09/27 18:45 | Bristol v Gloucester | L | 20-17 |
| Premiership Rugby Cup | 2019/09/21 14:00 | Gloucester v London Irish | L | 29-49 |
| Premiership Rugby | 2019/05/25 12:30 | Saracens v Gloucester | L | 44-19 |
| Premiership Rugby | 2019/05/18 15:00 | Sale Sharks v Gloucester | L | 46-41 |
| Premiership Rugby | 2019/05/04 14:00 | Gloucester v Newcastle Falcons | W | 28-19 |
| Premiership Rugby | 2019/04/28 14:00 | Worcester Warriors v Gloucester | L | 27-20 |
| Premiership Rugby | 2019/04/13 14:00 | Gloucester v Bath | W | 27-23 |
| Premiership Rugby | 2019/04/07 14:00 | Northampton v Gloucester | W | 31-40 |