Head to Head
| Wales Championship South | 2020/02/08 14:00 | Undy Athletic v Llantwit Major | L | 0-3 |
| Wales Championship South | 2019/10/05 13:30 | Llantwit Major v Undy Athletic | D | 1-1 |
| Wales League Division 1 | 2018/12/08 14:00 | Undy Athletic v Llantwit Major | W | 3-2 |
| Wales League Division 1 | 2018/09/01 13:30 | Llantwit Major v Undy Athletic | D | 1-1 |
Home History
| Wales Championship South | 2021/12/18 14:00 | Undy Athletic v Swansea University | W | 3-1 |
| Wales Championship South | 2021/12/11 14:30 | Briton Ferry v Undy Athletic | L | 4-0 |
| Wales Championship South | 2021/12/04 14:00 | Undy Athletic v Cwmbran Celtic | L | 3-4 |
| Wales Championship South | 2021/11/20 14:00 | Cwmbran Celtic v Undy Athletic | W | 1-2 |
| Wales Championship South | 2021/11/06 14:00 | Undy Athletic v Briton Ferry | L | 0-4 |
| Wales Championship South | 2021/10/30 13:30 | Swansea University v Undy Athletic | L | 2-1 |
| Wales Championship South | 2021/10/22 18:30 | Risca United v Undy Athletic | L | 3-0 |
| Wales Championship South | 2021/10/09 13:30 | Undy Athletic v Carmarthen | L | 2-3 |
Away History
| Wales Championship South | 2021/12/18 14:00 | Port Talbot v Llantwit Major | W | 0-3 |
| Wales Championship South | 2021/12/11 14:30 | Swansea University v Llantwit Major | L | 3-0 |
| Wales Championship South | 2021/12/04 14:00 | Llantwit Major v Briton Ferry | L | 0-1 |
| Wales Championship South | 2021/11/19 19:30 | Briton Ferry v Llantwit Major | W | 3-4 |
| Wales Championship South | 2021/11/06 14:00 | Llantwit Major v Swansea University | L | 0-2 |
| Wales Championship South | 2021/10/30 13:30 | Llantwit Major v Port Talbot | W | 6-0 |
| Wales Championship South | 2021/10/23 13:30 | Pontypridd Utd v Llantwit Major | L | 4-0 |
| Wales Championship South | 2021/10/09 13:30 | Llantwit Major v Afan Lido | W | 3-0 |