Head to Head
| Northern Ireland Premier | 2021/10/23 14:00 | Glentoran v Portadown | D | 2-2 |
| Northern Ireland Premier | 2021/04/03 14:00 | Glentoran v Portadown | W | 4-0 |
| Northern Ireland Premier | 2021/02/16 19:30 | Portadown v Glentoran | W | 1-3 |
| Northern Ireland Premier | 2021/01/02 17:30 | Glentoran v Portadown | W | 2-1 |
| Europe Friendlies | 2020/09/15 18:30 | Glentoran v Portadown | W | 3-1 |
| Northern Ireland Cup | 2020/01/04 15:00 | Glentoran v Portadown | W | 7-6 |
| Northern Ireland Premier | 2017/04/22 14:00 | Glentoran v Portadown | W | 3-0 |
| Northern Ireland Premier | 2017/01/03 19:45 | Portadown v Glentoran | W | 0-5 |
Home History
| Northern Ireland Premier | 2021/11/26 19:45 | Glentoran v Dungannon Swifts | W | 3-0 |
| Northern Ireland Premier | 2021/11/20 15:00 | Crusaders v Glentoran | W | 0-1 |
| Northern Ireland Premier | 2021/11/13 15:00 | Glentoran v Ballymena Utd | W | 4-0 |
| Northern Ireland League Cup | 2021/11/09 19:45 | Coleraine v Glentoran | L | 2-0 |
| Northern Ireland Premier | 2021/11/06 15:00 | Glentoran v Warrenpoint Town | W | 2-1 |
| Northern Ireland Premier | 2021/11/02 19:45 | Larne FC v Glentoran | D | 1-1 |
| Northern Ireland Premier | 2021/10/29 18:45 | Carrick Rangers v Glentoran | W | 0-2 |
| Northern Ireland Premier | 2021/10/23 14:00 | Glentoran v Portadown | D | 2-2 |
Away History
| Northern Ireland Premier | 2021/11/30 19:45 | Crusaders v Portadown | L | 2-0 |
| Northern Ireland Premier | 2021/11/27 15:00 | Portadown v Larne FC | D | 2-2 |
| Northern Ireland Premier | 2021/11/20 15:00 | Dungannon Swifts v Portadown | L | 4-2 |
| Northern Ireland Premier | 2021/11/13 15:00 | Portadown v Carrick Rangers | D | 2-2 |
| Northern Ireland League Cup | 2021/11/09 19:45 | Portadown v Cliftonville | L | 1-2 |
| Northern Ireland Premier | 2021/11/06 15:00 | Portadown v Linfield | D | 0-0 |
| Northern Ireland Premier | 2021/11/02 19:45 | Cliftonville v Portadown | L | 4-0 |
| Northern Ireland Premier | 2021/10/30 14:00 | Coleraine v Portadown | L | 2-0 |