P: 18 W: 12 D: 1 L: 5
Previously: Cwmbran Celtic FC
Last meeting: 02 Nov 2024 — Cwmbran Celtic v Llanelli (1-0)
| Season | Date | Match | Result | Score | Competition |
|---|---|---|---|---|---|
| 2014-15 | 04 Oct 2014 | Cwmbran Celtic v Llanelli | L | 1-2 | WELSH CUP 1R |
| 2014-15 | 29 Nov 2014 | Cwmbran Celtic v Llanelli | W | 3-2 | LEAGUE CUP |
| 2015-16 | 26 Sep 2015 | Cwmbran Celtic v Llanelli | L | 0-2 | LEAGUE |
| 2015-16 | 23 Apr 2016 | Llanelli v Cwmbran Celtic | L | 1-3 | LEAGUE |
| 2017-18 | 04 Nov 2017 | Cwmbran Celtic v Llanelli | L | 1-2 | WELSH CUP 2R |
| 2017-18 | 24 Mar 2018 | Llanelli v Cwmbran Celtic | W | 5-3 | LEAGUE |
| 2017-18 | 10 Apr 2018 | Cwmbran Celtic v Llanelli | W | 3-0 | LEAGUE CUP |
| 2017-18 | 12 May 2018 | Cwmbran Celtic v Llanelli | W | 3-1 | LEAGUE |
| 2019-20 | 27 Sep 2019 | Llanelli v Cwmbran Celtic | W | 1-0 | LEAGUE |
| 2019-20 | 25 Jan 2020 | Cwmbran Celtic v Llanelli | W | 5-4 | LEAGUE |
| 2021-22 | 30 Oct 2021 | Cwmbran Celtic v Llanelli | W | 4-2 | LEAGUE |
| 2021-22 | 17 Dec 2021 | Llanelli v Cwmbran Celtic | W | 2-0 | LEAGUE |
| 2022-23 | 02 Aug 2022 | Llanelli v Cwmbran Celtic | W | 1-0 | LEAGUE |
| 2022-23 | 25 Feb 2023 | Cwmbran Celtic v Llanelli | D | 3-3 | LEAGUE |
| 2023-24 | 23 Feb 2024 | Llanelli v Cwmbran Celtic | W | 3-2 | LEAGUE |
| 2023-24 | 13 Mar 2024 | Cwmbran Celtic v Llanelli | L | 1-3 | LEAGUE |
| 2024-25 | 06 Aug 2024 | Llanelli v Cwmbran Celtic | W | 3-1 | LEAGUE |
| 2024-25 | 02 Nov 2024 | Cwmbran Celtic v Llanelli | W | 1-0 | LEAGUE |