Head to Head
| Republic of Ireland Leinster Senior League | 2019/09/08 11:00 | Ballymun United v Portmarnock AFC | W | 1-2 |
| Republic of Ireland Leinster Senior League | 2019/05/05 10:00 | Ballymun United v Portmarnock AFC | L | 3-1 |
| Republic of Ireland Leinster Senior League | 2018/08/29 17:45 | Portmarnock AFC v Ballymun United | W | 2-1 |
Home History
| Republic of Ireland Leinster Senior League | 2020/07/20 18:00 | Seaford Rock United v Portmarnock AFC | D | 2-2 |
| Republic of Ireland Leinster Senior League | 2020/02/26 19:45 | Malahide Utd v Portmarnock AFC | L | 4-0 |
| Republic of Ireland Leinster Senior League | 2020/01/17 19:45 | Edenderry Town v Portmarnock AFC | W | 3-4 |
| Republic of Ireland Leinster Senior League | 2020/01/05 11:00 | Portmarnock AFC v Bluebell United | W | 4-2 |
| Republic of Ireland Leinster Senior League | 2019/12/13 20:00 | Maynooth University Town FC v Portmarnock AFC | L | 3-0 |
| Republic of Ireland Leinster Senior League | 2019/09/20 19:00 | Cherry Orchard v Portmarnock AFC | L | 3-2 |
| Republic of Ireland Leinster Senior League | 2019/09/08 11:00 | Ballymun United v Portmarnock AFC | W | 1-2 |
| Republic of Ireland Leinster Senior League | 2019/09/04 19:00 | Newbridge Town FC v Portmarnock AFC | L | 5-4 |
Away History
| Republic of Ireland Leinster Senior League | 2020/07/19 11:00 | Bluebell United v Ballymun United | D | 1-1 |
| Republic of Ireland Leinster Senior League | 2020/07/18 13:00 | Ballymun United v Bangor Celtic FC | L | 0-2 |
| Republic of Ireland Leinster Senior League | 2020/02/14 19:26 | Newbridge Town FC v Ballymun United | W | 0-2 |
| Republic of Ireland Leinster Senior League | 2020/01/25 14:00 | Ballymun United v Maynooth University Town FC | L | 3-5 |
| Republic of Ireland Leinster Senior League | 2020/01/19 11:58 | Ballymun United v Cherry Orchard | W | 5-1 |
| Republic of Ireland Leinster Senior League | 2020/01/11 14:00 | Ballymun United v Bluebell United | W | 3-1 |
| Republic of Ireland Leinster Senior League | 2020/01/10 19:45 | Malahide Utd v Ballymun United | D | 0-0 |
| Republic of Ireland Leinster Senior League | 2019/12/14 13:51 | Cherry Orchard v Ballymun United | L | 3-0 |