Head to Head
| 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 | 2018/04/15 13:43 | Crumlin United v Portmarnock AFC | W | 0-1 |
| Republic of Ireland Leinster Senior League | 2018/03/25 10:02 | Portmarnock AFC v Crumlin United | L | 2-4 |
Home History
| Republic of Ireland Leinster Senior League | 2019/01/16 20:00 | Liffey Wanderers v Portmarnock AFC | D | 0-0 |
| 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 |
Away History
| Republic of Ireland Leinster Senior Cup | 2019/02/05 20:00 | Crumlin United v Malahide Utd | W | 6-0 |
| Republic of Ireland Leinster Senior Cup | 2019/01/24 20:00 | Crumlin United v Malahide Utd | W | 5-0 |
| Republic of Ireland Leinster Senior League | 2019/01/13 11:00 | Killester Donnycarney FC v Crumlin United | D | 3-3 |
| Republic of Ireland Leinster Senior League | 2019/01/08 20:00 | Crumlin United v Colepark United | W | 1-0 |
| Republic of Ireland Leinster Senior Cup | 2019/01/06 12:00 | Crumlin United v Edenderry Town | W | 5-0 |
| Republic of Ireland Leinster Senior League | 2018/12/10 19:45 | Swords Celtic FC v Crumlin United | W | 1-2 |
| Republic of Ireland Leinster Senior League | 2018/12/02 12:00 | Crumlin United v Bluebell United | W | 1-0 |
| Republic of Ireland Leinster Senior League | 2018/11/16 20:00 | St Mochtas v Crumlin United | W | 1-3 |