[4] Harlequins 5-17 Ulster [3] 2017-12-10 13:00
Stadium: London Round: 3
Referee: Pascal Gauzere Home Manager: Mark Mapletoft Away Manager: Neil Doak
Home History
| Premiership Rugby | 2017/12/03 15:00 | Harlequins v Saracens | W | 20-19 |
| Premiership Rugby | 2017/11/25 12:45 | Bath v Harlequins | L | 38-14 |
| Premiership Rugby | 2017/11/19 15:00 | Exeter Chiefs v Harlequins | L | 31-17 |
| LV Cup | 2017/11/12 15:00 | Harlequins v Worcester Warriors | W | 45-37 |
| LV Cup | 2017/11/05 15:00 | Saracens v Harlequins | W | 29-30 |
| Premiership Rugby Shield | 2017/10/29 14:15 | Harlequins v Saracens Storm | W | 40-26 |
| Premiership Rugby | 2017/10/28 14:00 | Harlequins v Worcester Warriors | W | 41-35 |
| Premiership Rugby Shield | 2017/10/23 18:30 | Gloucester United v Harlequins | W | 26-36 |
Away History
| Pro 14 Rugby | 2017/12/01 19:35 | Newport Gwent Dragons v Ulster | D | 32-32 |
| Pro 14 Rugby | 2017/11/24 19:15 | Ulster v Benetton Treviso | W | 23-22 |
| Pro 14 Rugby | 2017/11/04 13:00 | Southern Kings v Ulster | W | 36-43 |
| Pro 14 Rugby | 2017/10/28 17:30 | Ulster v Leinster | L | 10-25 |
| European Rugby Champions Cup | 2017/10/22 14:15 | La Rochelle v Ulster | L | 41-17 |
| European Rugby Champions Cup | 2017/10/13 18:45 | Ulster v Wasps | W | 19-9 |
| Pro 14 Rugby | 2017/10/06 18:35 | Ulster v Connacht | W | 16-8 |
| United Rugby Championship | 2017/09/30 13:35 | Zebre v Ulster | L | 27-23 |