P: 14 W: 7 D: 5 L: 2
Previously: Pontypridd Town
Last meeting: 21 Mar 2025 — Pontypridd United v Llanelli (2-1)
| Season | Date | Match | Result | Score | Competition |
|---|---|---|---|---|---|
| 2004-05 | 11 Sep 2004 | Pontypridd Town v Llanelli | W | 1-0 | WELSH CUP 1R |
| 2013-14 | 16 Nov 2013 | Llanelli v Pontypridd Town | W | 2-1 | LEAGUE |
| 2013-14 | 22 Mar 2014 | Pontypridd Town v Llanelli | D | 1-1 | LEAGUE |
| 2014-15 | 25 Oct 2014 | Pontypridd Town v Llanelli | W | 2-1 | LEAGUE |
| 2014-15 | 28 Mar 2015 | Llanelli v Pontypridd Town | W | 4-1 | LEAGUE |
| 2016-17 | 17 Aug 2016 | Llanelli v Pontypridd Town | D | 3-3 | LEAGUE CUP |
| 2016-17 | 10 Sep 2016 | Llanelli v Pontypridd Town | W | 3-1 | WELSH CUP 2QR |
| 2016-17 | 09 Dec 2016 | Llanelli v Pontypridd Town | D | 2-2 | LEAGUE |
| 2016-17 | 07 Apr 2017 | Pontypridd Town v Llanelli | D | 3-3 | LEAGUE |
| 2019-20 | 16 Aug 2019 | Llanelli v Pontypridd United | D | 1-1 | LEAGUE |
| 2019-20 | 29 Nov 2019 | Pontypridd United v Llanelli | L | 1-2 | LEAGUE |
| 2023-24 | 04 Aug 2023 | Llanelli v Pontypridd United | L | 1-4 | LEAGUE CUP |
| 2024-25 | 26 Aug 2024 | Llanelli v Pontypridd United | W | 3-0 | LEAGUE |
| 2024-25 | 21 Mar 2025 | Pontypridd United v Llanelli | W | 2-1 | LEAGUE |