Head to Head
| Premiership Rugby | 2021/03/13 12:30 | Exeter Chiefs v Harlequins | W | 21-20 |
| Premiership Rugby | 2020/11/20 19:45 | Harlequins v Exeter Chiefs | W | 3-33 |
| Premiership Rugby | 2020/02/29 15:00 | Harlequins v Exeter Chiefs | L | 34-30 |
| Premiership Rugby Cup | 2020/02/02 13:00 | Exeter Chiefs v Harlequins | L | 22-49 |
| Premiership Rugby | 2019/10/19 14:00 | Exeter Chiefs v Harlequins | W | 22-19 |
| Premiership Rugby | 2019/04/27 13:00 | Exeter Chiefs v Harlequins | W | 17-15 |
| Premiership Rugby | 2018/11/30 19:45 | Harlequins v Exeter Chiefs | L | 28-26 |
| Premiership Rugby Cup | 2018/11/10 13:00 | Exeter Chiefs v Harlequins | W | 29-13 |
Home History
| Premiership Rugby | 2021/06/19 15:30 | Exeter Chiefs v Sale Sharks | W | 40-30 |
| Premiership Rugby | 2021/06/12 14:00 | Exeter Chiefs v Sale Sharks | W | 20-19 |
| Premiership Rugby | 2021/06/06 14:00 | Northampton v Exeter Chiefs | W | 26-29 |
| Premiership Rugby | 2021/05/30 12:30 | Exeter Chiefs v Newcastle Falcons | W | 74-3 |
| Premiership Rugby | 2021/05/18 18:45 | London Irish v Exeter Chiefs | W | 12-31 |
| Premiership Rugby | 2021/05/08 14:00 | Exeter Chiefs v Worcester Warriors | W | 41-10 |
| Premiership Rugby | 2021/04/23 18:45 | Bristol v Exeter Chiefs | W | 12-20 |
| Premiership Rugby | 2021/04/17 11:30 | Exeter Chiefs v Wasps | W | 43-13 |
Away History
| Premiership Rugby | 2021/06/19 12:30 | Bristol v Harlequins | W | 36-43 |
| Premiership Rugby | 2021/06/12 14:00 | Harlequins v Newcastle Falcons | W | 54-26 |
| Premiership Rugby | 2021/06/04 18:45 | Sale Sharks v Harlequins | L | 45-12 |
| Premiership Rugby | 2021/05/29 13:00 | Harlequins v Bath | W | 44-33 |
| Premiership Rugby | 2021/05/15 14:30 | Leicester v Harlequins | L | 35-29 |
| Premiership Rugby | 2021/05/09 14:00 | Harlequins v Wasps | W | 48-46 |
| Premiership Rugby | 2021/04/24 11:30 | London Irish v Harlequins | W | 21-25 |
| Premiership Rugby | 2021/04/17 16:00 | Harlequins v Worcester Warriors | W | 50-26 |