| Under 12 Division 3 |
| 13/07/2018 |
| 18:30 | Manulla B | 0 | vs | 7 | Ballina Town B | More |
| Venue : Manulla Referee : Michael Walsh |
| 19:00 | Castlebar Celtic B | 6 | vs | 1 | Achill Rovers | More |
| Venue : Castlebar Referee : Declan Howley |
| 19:00 | Glenhest Rovers | 1 | vs | 3 | Westport Utd B | More |
| Venue : Glenhest Referee : Ann Sweeney |
| 20/07/2018 |
| 18:30 | Ballina Town B | 2 | vs | 3 | Westport Utd B | More |
| Venue : Ballina Referee : Dean Humphreys |
| 19:00 | Achill Rovers | 1 | vs | 1 | Glenhest Rovers | More |
| Venue : Achill Referee : Declan Howley |
| 19:00 | Castlebar Celtic B | 6 | vs | 2 | Manulla B | More |
| Venue : Castlebar Referee : Adrian Redmond |
| 27/07/2018 |
| 18:15 | Westport Utd B | 5 | vs | 5 | Castlebar Celtic B | More |
| Venue : Westport Referee : James Barrett |
| 19:00 | Glenhest Rovers | 4 | vs | 4 | Ballina Town B | More |
| Venue : Glenhest Referee : Martin Flannery |
| 19:30 | Manulla B | 0 | vs | 3 | Achill Rovers | More |
| Venue : Manulla Referee : Aiden Nevin |
| 03/08/2018 |
| 18:15 | Castlebar Celtic B | 2 | vs | 3 | Glenhest Rovers | More |
| Venue : Castlebar Referee : Tony Cosgrove |
| 18:15 | Manulla B | 1 | vs | 5 | Westport Utd B | More |
| Venue : Manulla Referee : Ann Sweeney |
| 19:00 | Achill Rovers | 1 | vs | 2 | Ballina Town B | More |
| Venue : Achill Referee : Allan English |
| 10/08/2018 |
| 18:15 | Ballina Town B | | vs | | Castlebar Celtic B | More |
| Venue : Ballina Referee : Vincent Thomas |
| 18:15 | Westport Utd B | 7 | vs | 0 | Achill Rovers | More |
| Venue : Westport Referee : James Barrett |
| 19:00 | Glenhest Rovers | 3 | vs | 0 | Manulla B | More |
| Venue : Glenhest Referee : Dean Humphreys |
| 17/08/2018 |
| 18:15 | Westport Utd B | 3 | vs | 0 | Glenhest Rovers | More |
| Venue : Westport Referee : Finian Bourke |
| 19:00 | Achill Rovers | | vs | | Castlebar Celtic B | More |
| Venue : Achill Referee : Declan Howley |
| 19:00 | Ballina Town B | 5 | vs | 4 | Manulla B | More |
| Venue : Ballina Referee : Vincent Thomas |
| 25/08/2018 |
| 12:00 | Glenhest Rovers | 5 | vs | 1 | Achill Rovers | More |
| Venue : Glenhest Referee : John Doherty |
| 13:00 | Westport Utd B | 3 | vs | 2 | Ballina Town B | More |
| Venue : Westport Referee : Aiden Nevin |
| 14:00 | Manulla B | 3 | vs | 6 | Castlebar Celtic B | More |
| Venue : Manulla Referee : Allan English |
| 31/08/2018 |
| 18:15 | Achill Rovers | 3 | vs | 0 | Manulla B | More |
| Venue : Achill Referee : Declan Howley |
| 18:15 | Ballina Town B | 6 | vs | 4 | Glenhest Rovers | More |
| Venue : Ballina Referee : John Doherty |
| 18:30 | Castlebar Celtic B | 1 | vs | 5 | Westport Utd B | More |
| Venue : Castlebar Referee : Adrian Redmond |
| 07/09/2018 |
| 18:15 | Ballina Town B | 3 | vs | 0 | Achill Rovers | More |
| Venue : Ballina Referee : Martin Flannery |
| 18:30 | Glenhest Rovers | | vs | | Castlebar Celtic B | More |
| Venue : Glenhest Referee : John Doherty |
| 11/09/2018 |
| 18:15 | Westport Utd B | 7 | vs | 0 | Manulla B | More |
| Venue : Westport Referee : John Mulroe |
| 14/09/2018 |
| 18:00 | Achill Rovers | 1 | vs | 6 | Westport Utd B | More |
| Venue : Achill Referee : Ann Sweeney |
| 18:00 | Castlebar Celtic B | | vs | | Ballina Town B | More |
| Venue : Castlebar Referee : Allan English |
| 18:00 | Manulla B | 1 | vs | 0 | Glenhest Rovers | More |
| Venue : Manulla Referee : Alex Poplonski |
