Home History
| Republic of Ireland Amateur Cup | 2017/12/15 19:33 | Kilmore Celtic FC v Sheriff YC | W | 0-6 |
| Republic of Ireland FAI Cup | 2017/08/13 11:00 | Bluebell United v Sheriff YC | L | 3-0 |
| Republic of Ireland FAI Cup | 2015/09/11 19:00 | Longford Town v Sheriff YC | L | 3-1 |
| Republic of Ireland FAI Cup | 2015/08/24 18:45 | Athlone Town v Sheriff YC | W | 3-4 |
| Republic of Ireland FAI Cup | 2015/08/21 18:30 | Sheriff YC v Athlone Town | D | 2-2 |
| Republic of Ireland FAI Cup | 2015/05/31 18:00 | UCD v Sheriff YC | W | 1-3 |
| Republic of Ireland FAI Cup | 2014/06/07 16:00 | Sheriff YC v Shamrock Rovers | L | 0-4 |
Away History
| Republic of Ireland Leinster Senior League | 2018/05/02 18:47 | Bangor Celtic FC v Portmarnock AFC | D | 1-1 |
| Republic of Ireland Leinster Senior League | 2018/04/18 17:45 | Bluebell United v Portmarnock AFC | L | 3-2 |
| 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 |
| Republic of Ireland Leinster Senior League | 2018/02/11 11:00 | Portmarnock AFC v Greystones | W | 1-0 |
| Republic of Ireland Leinster Senior League | 2018/01/28 11:02 | Cherry Orchard v Portmarnock AFC | D | 2-2 |
| Republic of Ireland Leinster Senior League | 2018/01/12 20:00 | Newbridge Town FC v Portmarnock AFC | D | 1-1 |
| Republic of Ireland Leinster Senior Cup | 2017/12/03 11:57 | Bluebell United v Portmarnock AFC | L | 5-1 |