P: 68 W: 25 D: 14 L: 29
Previously: Briton Ferry Athletic
Last meeting: 13 Mar 2026 — Llanelli v Briton Ferry Llansawel (0-2)
| Season | Date | Match | Result | Score | Competition |
|---|---|---|---|---|---|
| 1948-49 | 23 Aug 1948 | Llanelli v Briton Ferry Athletic | W | 4-1 | LEAGUE |
| 1948-49 | 01 Sep 1948 | Briton Ferry Athletic v Llanelli | D | 1-1 | LEAGUE |
| 1948-49 | 21 Apr 1949 | Llanelli v Briton Ferry Athletic | D | 0-0 | WEST WALES SENIOR CUP |
| 1948-49 | 26 Apr 1949 | Llanelli v Briton Ferry Athletic | W | 3-1 | WEST WALES SENIOR CUP |
| 1974-75 | 26 Oct 1974 | Briton Ferry Athletic v Llanelli | L | 1-4 | WELSH CUP 2R |
| 1980-81 | 20 Sep 1980 | Llanelli v Briton Ferry Athletic | W | 2-1 | WELSH CUP 1R |
| 1980-81 | 18 Oct 1980 | Llanelli v Briton Ferry Athletic | L | 1-2 | LEAGUE |
| 1980-81 | 06 Dec 1980 | Briton Ferry Athletic v Llanelli | L | 2-4 | LEAGUE |
| 1981-82 | 07 Nov 1981 | Llanelli v Briton Ferry Athletic | W | 3-0 | WELSH CUP 2R |
| 1981-82 | 28 Apr 1982 | Llanelli v Briton Ferry Athletic | D | 1-1 | LEAGUE |
| 1981-82 | 18 May 1982 | Briton Ferry Athletic v Llanelli | W | 2-1 | LEAGUE |
| 1983-84 | 24 Mar 1984 | Llanelli v Briton Ferry Athletic | L | 1-3 | LEAGUE |
| 1983-84 | 14 Apr 1984 | Briton Ferry Athletic v Llanelli | L | 1-2 | LEAGUE |
| 1984-85 | 24 Nov 1984 | Briton Ferry Athletic v Llanelli | D | 1-1 | LEAGUE |
| 1984-85 | 23 Mar 1985 | Llanelli v Briton Ferry Athletic | D | 1-1 | LEAGUE |
| 1985-86 | 14 Sep 1985 | Llanelli v Briton Ferry Athletic | L | 1-3 | LEAGUE |
| 1985-86 | 11 Jan 1986 | Briton Ferry Athletic v Llanelli | D | 2-2 | LEAGUE |
| 1986-87 | 01 Nov 1986 | Briton Ferry Athletic v Llanelli | L | 0-1 | LEAGUE |
| 1986-87 | 28 Feb 1987 | Llanelli v Briton Ferry Athletic | L | 0-2 | LEAGUE |
| 1986-87 | 26 Apr 1987 | Llanelli v Briton Ferry Athletic | L | 0-1 | WWSC SF |
| 1987-88 | 12 Dec 1987 | Llanelli v Briton Ferry Athletic | W | 1-0 | LEAGUE |
| 1987-88 | 13 Apr 1988 | Briton Ferry Athletic v Llanelli | L | 1-2 | LEAGUE |
| 1989-90 | 02 Dec 1989 | Llanelli v Briton Ferry Athletic | W | 3-1 | LEAGUE |
| 1989-90 | 01 Apr 1990 | Briton Ferry Athletic v Llanelli | L | 2-3 | LEAGUE |
| 1990-91 | 25 Jan 1991 | Llanelli v Briton Ferry Athletic | L | 3-4 | LEAGUE |
| 1990-91 | 10 Apr 1991 | Llanelli v Briton Ferry Athletic | W | 4-2 | WWSC SF |
| 1990-91 | 27 Apr 1991 | Briton Ferry Athletic v Llanelli | L | 0-3 | LEAGUE |
| 1991-92 | 26 Oct 1991 | Briton Ferry Athletic v Llanelli | L | 2-3 | LEAGUE |
| 1991-92 | 08 Feb 1992 | Llanelli v Briton Ferry Athletic | L | 0-2 | LEAGUE |
| 1992-93 | 04 Nov 1992 | Llanelli v Briton Ferry Athletic | W | 2-1 | LEAGUE CUP |
| 1992-93 | 05 Dec 1992 | Llanelli v Briton Ferry Athletic | W | 1-0 | LEAGUE |
| 1992-93 | 08 Dec 1992 | Llanelli v Briton Ferry Athletic | D | 3-3 | LEAGUE CUP |
| 1992-93 | 13 Feb 1993 | Briton Ferry Athletic v Llanelli | D | 1-1 | LEAGUE |
| 1993-94 | 27 Dec 1993 | Briton Ferry Athletic v Llanelli | W | 3-2 | LEAGUE |
| 1993-94 | 12 Feb 1994 | Llanelli v Briton Ferry Athletic | L | 1-3 | LEAGUE |
| 1995-96 | 27 Sep 1995 | Briton Ferry Athletic v Llanelli | D | 1-1 | LEAGUE CUP |
| 1995-96 | 21 Oct 1995 | Llanelli v Briton Ferry Athletic | L | 2-3 | LEAGUE |
| 1995-96 | 25 Oct 1995 | Llanelli v Briton Ferry Athletic | W | 4-3 | LEAGUE CUP |
| 1995-96 | 01 Mar 1996 | Briton Ferry Athletic v Llanelli | L | 0-5 | LEAGUE |
| 1997-98 | 27 Aug 1997 | Llanelli v Briton Ferry Athletic | W | 3-1 | LEAGUE |
| 1997-98 | 22 Apr 1998 | Briton Ferry Athletic v Llanelli | D | 0-0 | LEAGUE |
| 1998-99 | 04 Dec 1998 | Llanelli v Briton Ferry Athletic | W | 1-0 | LEAGUE |
| 1998-99 | 27 Mar 1999 | Briton Ferry Athletic v Llanelli | W | 1-0 | LEAGUE |
| 1999-00 | 16 Oct 1999 | Llanelli v Briton Ferry Athletic | W | 6-0 | WELSH CUP 2R |
| 2000-01 | 24 Jan 2001 | Briton Ferry Athletic v Llanelli | W | 3-0 | WWSC QF |
| 2003-04 | 30 Aug 2003 | Briton Ferry Athletic v Llanelli | W | 6-2 | LEAGUE |
| 2003-04 | 17 Jan 2004 | Llanelli v Briton Ferry Athletic | W | 2-1 | LEAGUE |
| 2003-04 | 18 May 2004 | Llanelli v Briton Ferry Athletic | L | 1-3 | LEAGUE CUP |
| 2004-05 | 18 May 2005 | Llanelli v Briton Ferry Athletic | L | 1-3 | LEAGUE CUP |
| 2016-17 | 21 Oct 2016 | Briton Ferry Llansawel v Llanelli | D | 2-2 | LEAGUE |
| 2016-17 | 24 Feb 2017 | Llanelli v Briton Ferry Llansawel | W | 4-1 | LEAGUE |
| 2017-18 | 18 Aug 2017 | Briton Ferry Llansawel v Llanelli | W | 4-1 | LEAGUE |
| 2017-18 | 15 Dec 2017 | Llanelli v Briton Ferry Llansawel | W | 4-1 | LEAGUE |
| 2019-20 | 10 Aug 2019 | Briton Ferry Llansawel v Llanelli | D | 1-1 | LEAGUE CUP |
| 2019-20 | 27 Aug 2019 | Llanelli v Briton Ferry Llansawel | W | 3-2 | LEAGUE |
| 2019-20 | 20 Dec 2019 | Briton Ferry Llansawel v Llanelli | L | 1-4 | LEAGUE |
| 2021-22 | 15 Apr 2022 | Briton Ferry Llansawel v Llanelli | W | 1-0 | LEAGUE |
| 2021-22 | 18 Apr 2022 | Llanelli v Briton Ferry Llansawel | L | 0-4 | LEAGUE |
| 2022-23 | 19 Aug 2022 | Briton Ferry Llansawel v Llanelli | D | 1-1 | LEAGUE |
| 2022-23 | 24 Mar 2023 | Llanelli v Briton Ferry Llansawel | D | 2-2 | LEAGUE |
| 2023-24 | 28 Jul 2023 | Briton Ferry Llansawel v Llanelli | L | 0-2 | LEAGUE |
| 2023-24 | 08 Dec 2023 | Briton Ferry Llansawel v Llanelli | L | 0-1 | WELSH CUP 4R |
| 2023-24 | 06 Apr 2024 | Llanelli v Briton Ferry Llansawel | L | 1-3 | CS LC F |
| 2023-24 | 13 Apr 2024 | Llanelli v Briton Ferry Llansawel 📄 | L | 2-5 | LEAGUE |
| 2025-26 | 22 Aug 2025 | Llanelli v Briton Ferry Llansawel | L | 2-4 | LEAGUE |
| 2025-26 | 23 Sep 2025 | Briton Ferry Llansawel v Llanelli | W | 2-1 | LEAGUE |
| 2025-26 | 23 Jan 2026 | Briton Ferry Llansawel v Llanelli | L | 1-3 | LEAGUE |
| 2025-26 | 13 Mar 2026 | Llanelli v Briton Ferry Llansawel | L | 0-2 | LEAGUE |