Head to Head
| 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 |
| 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 | W | 0-1 |
| Northern Ireland Premier | 2016/03/19 15:00 | Glentoran v Portadown | W | 2-1 |
| Northern Ireland Premier | 2015/12/14 19:45 | Portadown v Glentoran | L | 5-3 |
| Northern Ireland Premier | 2015/09/12 14:00 | Glentoran v Portadown | W | 1-0 |
| Northern Ireland Cup | 2015/05/02 13:30 | Glentoran v Portadown | W | 1-0 |
Home History
| Northern Ireland Premier | 2020/01/01 15:00 | Dungannon Swifts v Glentoran | W | 0-2 |
| Northern Ireland Premier | 2019/12/28 15:00 | Glentoran v Ballymena Utd | W | 2-0 |
| Northern Ireland Premier | 2019/12/26 15:00 | Glentoran v Linfield | W | 3-0 |
| Northern Ireland Premier | 2019/12/21 15:00 | Carrick Rangers v Glentoran | W | 0-1 |
| Northern Ireland Premier | 2019/12/14 15:00 | Glentoran v Crusaders | D | 1-1 |
| Northern Ireland Premier | 2019/12/07 15:00 | Coleraine v Glentoran | D | 2-2 |
| Northern Ireland Premier | 2019/11/30 15:00 | Cliftonville v Glentoran | W | 0-2 |
| Northern Ireland Premier | 2019/11/23 15:00 | Glentoran v Dungannon Swifts | W | 6-1 |
Away History
| Northern Ireland Championship | 2019/12/26 15:00 | Loughgall v Portadown | W | 0-2 |
| Northern Ireland Championship | 2019/12/21 15:00 | Portadown v PSNI | W | 5-0 |
| Northern Ireland Championship | 2019/12/14 17:00 | Ballinamallard Utd v Portadown | L | 4-2 |
| Northern Ireland Championship | 2019/12/07 15:00 | Portadown v Ards FC | W | 2-1 |
| Northern Ireland Championship | 2019/11/30 15:00 | Dundela v Portadown | D | 1-1 |
| Northern Ireland Championship | 2019/11/23 15:00 | Portadown v Loughgall | W | 2-1 |
| Northern Ireland Championship | 2019/11/15 19:45 | Ballyclare Comrades v Portadown | W | 0-1 |
| Northern Ireland Championship | 2019/11/08 19:45 | Newry City v Portadown | W | 1-2 |