


| 02 Oct 20 | r01 | UlsterUlster | 35 - 24 | BenettonBenetton |
| 10 Oct 20 | r02 | OspreysOspreys | 12 - 24 | UlsterUlster |
| 25 Oct 20 | r03 | UlsterUlster | 40 - 17 | DragonsDragons |
| 02 Nov 20 | r04 | Cardiff BluesCardiff Blues | 7 - 11 | UlsterUlster |
| 09 Nov 20 | r05 | UlsterUlster | 40 - 15 | GlasgowGlasgow |
| 16 Nov 20 | r06 | ZebreZebre | 14 - 57 | UlsterUlster |
| 22 Nov 20 | r07 | UlsterUlster | 26 - 24 | ScarletsScarlets |
| 30 Nov 20 | r08 | EdinburghEdinburgh | 14 - 43 | UlsterUlster |
| 27 Dec 20 | r09 | ConnachtConnacht | 19 - 32 | UlsterUlster |
| 02 Jan 21 | r10 | UlsterUlster | 15 - 10 | MunsterMunster |
| 08 Jan 21 | r11 | LeinsterLeinster | 24 - 12 | UlsterUlster |
| 19 Feb 21 | r12 | GlasgowGlasgow | 13 - 19 | UlsterUlster |
| 26 Feb 21 | r13 | UlsterUlster | 21 - 7 | OspreysOspreys |
| 06 Mar 21 | r14 | UlsterUlster | 19 - 38 | LeinsterLeinster |
| 13 Mar 21 | r15 | DragonsDragons | 22 - 26 | UlsterUlster |
| 19 Mar 21 | r16 | UlsterUlster | 49 - 3 | ZebreZebre |