Head to Head
| Northern Ireland Premier | 2016/03/19 15:00 | Glentoran v Portadown | L | 2-1 |
| Northern Ireland Premier | 2015/12/14 19:45 | Portadown v Glentoran | W | 5-3 |
| Northern Ireland Premier | 2015/09/12 14:00 | Glentoran v Portadown | L | 1-0 |
| Northern Ireland Cup | 2015/05/02 13:30 | Glentoran v Portadown | L | 1-0 |
| Northern Ireland Premier | 2015/04/11 14:00 | Glentoran v Portadown | D | 0-0 |
| Northern Ireland Premier | 2015/03/07 15:00 | Portadown v Glentoran | D | 1-1 |
| Northern Ireland Premier | 2014/11/29 15:00 | Portadown v Glentoran | W | 3-1 |
| Northern Ireland Premier | 2014/09/02 18:45 | Glentoran v Portadown | D | 1-1 |
Home History
| Northern Ireland Premier | 2016/08/13 14:00 | Ards FC v Portadown | L | 1-0 |
| Northern Ireland Premier | 2016/08/10 18:45 | Portadown v Ballinamallard Utd | W | 2-1 |
| Northern Ireland Premier | 2016/04/30 14:00 | Ballymena Utd v Portadown | W | 0-2 |
| Northern Ireland Premier | 2016/04/23 14:00 | Warrenpoint Town v Portadown | L | 2-0 |
| Northern Ireland Premier | 2016/04/19 18:45 | Carrick Rangers v Portadown | W | 1-2 |
| Northern Ireland Premier | 2016/04/16 14:00 | Portadown v Dungannon Swifts | L | 1-2 |
| Northern Ireland Premier | 2016/04/09 14:00 | Portadown v Ballinamallard Utd | D | 0-0 |
| Northern Ireland Premier | 2016/03/29 18:45 | Dungannon Swifts v Portadown | L | 2-1 |
Away History
| Northern Ireland Premier | 2016/08/13 14:00 | Glentoran v Carrick Rangers | L | 0-1 |
| Northern Ireland Premier | 2016/08/10 18:45 | Cliftonville v Glentoran | L | 2-0 |
| Northern Ireland Premier | 2016/08/06 14:00 | Glentoran v Dungannon Swifts | W | 1-0 |
| Europe Friendlies | 2016/07/28 18:30 | Glentoran v HW Welders | W | 3-2 |
| Europe Friendlies | 2016/07/19 18:30 | Carrick Rangers v Glentoran | D | 0-0 |
| Club Friendly List | 2016/07/09 14:00 | Glentoran v St Johnstone | L | 1-2 |
| Northern Ireland Play-Offs | 2016/05/10 18:45 | Cliftonville v Glentoran | L | 3-2 |
| Northern Ireland Play-Offs | 2016/05/06 18:45 | Coleraine v Glentoran | W | 1-2 |