Head to Head
| Northern Ireland Premier | 2023/04/01 14:00 | Glentoran v Portadown | L | 5-1 |
| Northern Ireland Cup | 2023/02/04 15:00 | Portadown v Glentoran | L | 0-3 |
| Northern Ireland Premier | 2022/11/26 15:00 | Portadown v Glentoran | L | 0-2 |
| Northern Ireland Premier | 2022/08/26 18:45 | Portadown v Glentoran | L | 0-3 |
| Northern Ireland Premier | 2022/02/08 19:45 | Portadown v Glentoran | D | 1-1 |
| Northern Ireland Premier | 2021/12/04 15:00 | Glentoran v Portadown | L | 3-1 |
| 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 | L | 4-0 |
| Northern Ireland Premier | 2021/02/16 19:30 | Portadown v Glentoran | L | 1-3 |
| Northern Ireland Premier | 2021/01/02 17:30 | Glentoran v Portadown | L | 2-1 |
| Europe Friendlies | 2020/09/15 18:30 | Glentoran v Portadown | L | 3-1 |
| Northern Ireland Cup | 2020/01/04 15:00 | Glentoran v Portadown | L | 7-6 |
| Northern Ireland Premier | 2017/04/22 14:00 | Glentoran v Portadown | L | 3-0 |
| Northern Ireland Premier | 2017/01/03 19:45 | Portadown v Glentoran | L | 0-5 |
| Northern Ireland Premier | 2016/11/05 15:00 | Glentoran v Portadown | D | 0-0 |
| Northern Ireland Premier | 2016/08/20 14:00 | Portadown v Glentoran | L | 0-1 |
| 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 |
| Northern Ireland Premier | 2014/04/26 14:00 | Portadown v Glentoran | L | 1-2 |