Head to Head
| Republic of Ireland Leinster Senior League | 2018/08/29 17:45 | Portmarnock AFC v Ballymun United | L | 2-1 |
Home History
| World Club Friendlies | 2018/12/23 12:00 | Kilbarrack Utd v Ballymun United | W | 2-7 |
| Republic of Ireland Leinster Senior League | 2018/12/09 11:00 | Ballymun United v Killester Donnycarney FC | L | 0-1 |
| Republic of Ireland Leinster Senior League | 2018/10/26 19:00 | Cherry Orchard v Ballymun United | L | 2-1 |
| Republic of Ireland Leinster Senior League | 2018/10/14 10:01 | Ballymun United v Malahide Utd | L | 0-4 |
| Republic of Ireland Leinster Senior League | 2018/10/07 10:01 | Ballymun United v Bangor Celtic FC | L | 0-3 |
| Republic of Ireland Leinster Senior League | 2018/10/01 19:00 | Swords Celtic FC v Ballymun United | D | 1-1 |
| Republic of Ireland Leinster Senior League | 2018/09/23 11:00 | Crumlin United v Ballymun United | L | 6-1 |
| Republic of Ireland Leinster Senior League | 2018/09/07 19:00 | Newbridge Town FC v Ballymun United | D | 0-0 |
Away History
| Europe Friendlies | 2018/12/19 19:45 | Leixlip United v Portmarnock AFC | W | 1-4 |
| Republic of Ireland Leinster Senior League | 2018/11/23 19:51 | Bangor Celtic FC v Portmarnock AFC | L | 2-1 |
| Republic of Ireland Leinster Senior League | 2018/11/18 11:00 | Killester Donnycarney FC v Portmarnock AFC | L | 3-2 |
| Republic of Ireland Leinster Senior League | 2018/10/14 11:00 | Crumlin United v Portmarnock AFC | L | 3-1 |
| Republic of Ireland Leinster Senior League | 2018/09/23 10:00 | Portmarnock AFC v Bangor Celtic FC | W | 3-0 |
| Republic of Ireland Leinster Senior League | 2018/09/16 11:00 | Bluebell United v Portmarnock AFC | L | 1-0 |
| Republic of Ireland Leinster Senior League | 2018/09/07 18:45 | St Mochtas v Portmarnock AFC | L | 4-0 |
| Republic of Ireland Leinster Senior League | 2018/08/29 17:45 | Portmarnock AFC v Ballymun United | W | 2-1 |