Home History
| Republic of Ireland Leinster Senior Cup | 2019/11/27 19:15 | Booth Road Celtic v Seaford Rock United | D | 2-2 |
| Republic of Ireland Leinster Senior Cup | 2018/12/10 19:45 | Beggsboro AFC v Seaford Rock United | L | 5-2 |
Away History
| 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 |
| Republic of Ireland Leinster Senior League | 2019/08/21 18:45 | St Mochtas v Portmarnock AFC | L | 3-1 |