| 2. Jornada | 02.04.2021 | Treaty United | - | Wexford FC | 1:0 | ||||
| 3. Jornada | 09.04.2021 | Treaty United | - | Cobh Ramblers | 1:1 |  |
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| 4. Jornada | 16.04.2021 | Galway United | - | Treaty United | 1:1 | ||||
| 8. Jornada | 14.05.2021 | Treaty United | - | Athlone Town | 1:0 | ||||
| 9. Jornada | 21.05.2021 | Cabinteely FC | - | Treaty United | 2:1 | ||||
| 10. Jornada | 28.05.2021 | Treaty United | - | Bray Wanderers | 2:0 | ||||
| 11. Jornada | 11.06.2021 | Wexford FC | - | Treaty United | 1:2 | ||||
| 12. Jornada | 19.06.2021 | Cobh Ramblers | - | Treaty United | 0:2 | |
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| 17. Jornada | 30.07.2021 | Athlone Town | - | Treaty United | 1:4 | ||||
| 18. Jornada | 06.08.2021 | Treaty United | - | Cabinteely FC | 1:4 | ||||
| 19. Jornada | 13.08.2021 | Bray Wanderers | - | Treaty United | 1:0 | ||||
| 20. Jornada | 20.08.2021 | Treaty United | - | Wexford FC | 1:1 | ||||
| 23. Jornada | 24.09.2021 | Treaty United | - | Cork City | 0:0 | ||||
| 24. Jornada | 01.10.2021 | Shelbourne FC | - | Treaty United | 1:0 | ||||
| 26. Jornada | 15.10.2021 | Treaty United | - | Athlone Town | 1:1 | ||||
| 25. Jornada | 22.10.2021 | UC Dublin | - | Treaty United | 2:1 | ||||
| 27. Jornada | 29.10.2021 | Cabinteely FC | - | Treaty United | 0:2 |
Irlanda