VS
| Date | Res | Home | Score | Away | |
|---|---|---|---|---|---|
| 08 Mar 25 | W | Merthyr Town | 2–1 | Swindon Supermarine | |
| 10 Sep 24 | W | Swindon Supermarine | 1–5 | Merthyr Town | |
| 26 Dec 23 | W | Merthyr Town | 4–1 | Swindon Supermarine | |
| 28 Aug 23 | W | Swindon Supermarine | 0–3 | Merthyr Town | |
| 02 Jan 23 | W | Merthyr Town | 2–1 | Swindon Supermarine | |
| 29 Aug 22 | L | Swindon Supermarine | 2–1 | Merthyr Town | |
| 18 Apr 22 | L | Merthyr Town | 1–3 | Swindon Supermarine | |
| 08 Feb 22 | L | Swindon Supermarine | 2–0 | Merthyr Town | |
| 01 Jan 20 | D | Swindon Supermarine | 2–2 | Merthyr Town | |
| 26 Aug 19 | W | Merthyr Town | 3–1 | Swindon Supermarine | |
| 29 Dec 18 | L | Swindon Supermarine | 3–0 | Merthyr Town | |
| 14 Aug 18 | D | Merthyr Town | 2–2 | Swindon Supermarine | |
| 03 Mar 15 | W | Swindon Supermarine | 1–3 | Merthyr Town | |
| 22 Nov 14 | W | Merthyr Town | 5–2 | Swindon Supermarine |
