P: 73 W: 13 D: 17 L: 43
Previously: Barry Town
Last meeting: 13 Jan 2026 — Barry Town United v Llanelli (1-5)
| Season | Date | Match | Result | Score | Competition |
|---|---|---|---|---|---|
| 1948-49 | 16 Oct 1948 | Barry Town v Llanelli | L | 1-3 | FA CUP |
| 1948-49 | 26 Dec 1948 | Barry Town v Llanelli | L | 1-2 | LEAGUE |
| 1948-49 | 18 Apr 1949 | Llanelli v Barry Town | L | 0-3 | LEAGUE |
| 1948-49 | 04 May 1949 | Llanelli v Barry Town | W | 2-0 | WELSH LC |
| 1950-51 | 21 Aug 1950 | Llanelli v Barry Town | W | 7-1 | LEAGUE |
| 1950-51 | 02 Dec 1950 | Barry Town v Llanelli | L | 1-2 | LEAGUE |
| 1951-52 | 11 Apr 1952 | Barry Town v Llanelli | W | 2-0 | LEAGUE |
| 1951-52 | 28 Apr 1952 | Llanelli v Barry Town | W | 3-2 | LEAGUE |
| 1952-53 | 28 Apr 1952 | Barry Town v Llanelli | W | 3-2 | LEAGUE |
| 1952-53 | 03 Apr 1953 | Barry Town v Llanelli | W | 2-0 | LEAGUE |
| 1952-53 | 06 Apr 1953 | Llanelli v Barry Town | W | 6-0 | LEAGUE |
| 1953-54 | 28 Nov 1953 | Llanelli v Barry Town | D | 3-3 | LEAGUE |
| 1953-54 | 17 Apr 1954 | Barry Town v Llanelli | W | 4-2 | LEAGUE |
| 1967-68 | 30 Sep 1967 | Llanelli v Barry Town | D | 0-0 | FACUP 2QR |
| 1967-68 | 04 Oct 1967 | Barry Town v Llanelli | L | 0-4 | FACUP 2QRRE |
| 1969-70 | Barry Town v Llanelli | LEAGUE | |||
| 1969-70 | 16 Aug 1969 | Llanelli v Barry Town | D | 1-1 | LEAGUE |
| 1970-71 | 19 Sep 1970 | Llanelli v Barry Town | W | 1-0 | FA CUP |
| 1972-73 | Llanelli v Barry Town | L | 0-1 | FA CUP | |
| 1975-76 | Barry Town v Llanelli | L | 1-5 | FA TROPHY | |
| 1977-78 | Llanelli v Barry Town | D | 1-1 | LEAGUE | |
| 1977-78 | 29 Mar 1978 | Barry Town v Llanelli | D | 0-0 | LEAGUE |
| 1978-79 | Llanelli v Barry Town | D | 1-1 | LEAGUE | |
| 1978-79 | 09 Dec 1978 | Barry Town v Llanelli | D | 0-0 | LEAGUE |
| 1979-80 | Llanelli v Barry Town | L | 0-2 | LEAGUE | |
| 1979-80 | Barry Town v Llanelli | D | 1-1 | LEAGUE | |
| 1980-81 | 25 Oct 1980 | Llanelli v Barry Town | D | 1-1 | WELSH CUP 2R |
| 1980-81 | 01 Nov 1980 | Barry Town v Llanelli | L | 1-2 | WELSH CUP 2RRE |
| 1980-81 | 03 Jan 1981 | Llanelli v Barry Town | L | 0-1 | LEAGUE |
| 1980-81 | 28 Apr 1981 | Barry Town v Llanelli | W | 1-0 | LEAGUE |
| 1981-82 | 14 Nov 1981 | Llanelli v Barry Town United | L | 1-3 | LEAGUE |
| 1981-82 | 19 Apr 1982 | Barry Town United v Llanelli | L | 1-5 | LEAGUE |
| 1982-83 | 23 Oct 1982 | Llanelli v Barry Town United | L | 1-3 | LEAGUE |
| 1982-83 | 19 Feb 1983 | Barry Town United v Llanelli | L | 1-6 | LEAGUE |
| 1983-84 | Barry Town United v Llanelli | L | 0-1 | LEAGUE | |
| 1983-84 | 29 Oct 1983 | Llanelli v Barry Town United | L | 1-3 | LEAGUE |
| 1984-85 | 09 Apr 1985 | Barry Town United v Llanelli | D | 1-1 | LEAGUE |
| 1984-85 | 04 May 1985 | Llanelli v Barry Town United | D | 0-0 | LEAGUE |
| 1985-86 | 01 Feb 1986 | Llanelli v Barry Town United | L | 2-3 | LEAGUE |
| 1985-86 | 19 Apr 1986 | Barry Town United v Llanelli | L | 1-3 | LEAGUE |
| 1986-87 | 07 Apr 1987 | Barry Town United v Llanelli | L | 0-3 | LEAGUE |
| 1986-87 | 15 Apr 1987 | Llanelli v Barry Town United | L | 0-2 | LEAGUE |
| 1987-88 | 03 Oct 1987 | Barry Town United v Llanelli | L | 0-6 | FA TROPHY |
| 1987-88 | 21 Nov 1987 | Barry Town United v Llanelli | L | 1-7 | LEAGUE |
| 1987-88 | 09 Apr 1988 | Llanelli v Barry Town United | L | 0-1 | LEAGUE |
| 1994-95 | 07 Jan 1995 | Barry Town United v Llanelli | L | 3-5 | LEAGUE |
| 1994-95 | 25 Feb 1995 | Llanelli v Barry Town United | W | 3-2 | LEAGUE |
| 1995-96 | 22 Aug 1995 | Barry Town United v Llanelli | L | 1-6 | LEAGUE CUP |
| 1995-96 | 04 Oct 1995 | Llanelli v Barry Town United | D | 1-1 | LEAGUE CUP |
| 1995-96 | 25 Nov 1995 | Llanelli v Barry Town United | L | 0-5 | LEAGUE |
| 1995-96 | 06 Apr 1996 | Barry Town United v Llanelli | L | 0-3 | LEAGUE |
| 1999-00 | 27 Aug 1999 | Barry Town United v Llanelli | L | 2-4 | LEAGUE |
| 1999-00 | 14 Jan 2000 | Llanelli v Barry Town United | W | 2-1 | LEAGUE |
| 2000-01 | 24 Nov 2000 | Llanelli v Barry Town United | L | 1-6 | LEAGUE |
| 2000-01 | 27 Feb 2001 | Barry Town United v Llanelli | L | 0-4 | LEAGUE |
| 2000-01 | 07 Mar 2001 | Llanelli v Barry Town United | L | 1-3 | LEAGUE |
| 2000-01 | 31 Mar 2001 | Barry Town United v Llanelli | L | 1-7 | LEAGUE |
| 2001-02 | 27 Nov 2001 | Llanelli v Barry Town United | D | 1-1 | LEAGUE |
| 2001-02 | 16 Apr 2002 | Barry Town United v Llanelli | L | 0-2 | LEAGUE |
| 2002-03 | 02 Oct 2002 | Llanelli v Barry Town United | L | 2-3 | LEAGUE |
| 2002-03 | 04 Feb 2003 | Barry Town United v Llanelli | L | 0-1 | LEAGUE |
| 2013-14 | 20 Aug 2013 | Barry Town United v Llanelli | L | 0-3 | LEAGUE |
| 2013-14 | 28 Dec 2013 | Llanelli v Barry Town United | W | 1-0 | LEAGUE |
| 2018-19 | 24 Aug 2018 | Llanelli v Barry Town United | D | 1-1 | LEAGUE |
| 2018-19 | 19 Oct 2018 | Barry Town United v Llanelli | L | 2-5 | LEAGUE |
| 2021-22 | 07 Aug 2021 | Barry Town United v Llanelli | L | 0-5 | LEAGUE CUP |
| 2022-23 | 14 Oct 2022 | Llanelli v Barry Town United | D | 0-0 | LEAGUE CUP |
| 2022-23 | 21 Oct 2022 | Barry Town United v Llanelli | L | 1-3 | LEAGUE |
| 2022-23 | 28 Jan 2023 | Llanelli v Barry Town United | D | 1-1 | LEAGUE |
| 2024-25 | 02 Aug 2024 | Barry Town United v Llanelli | D | 1-1 | LEAGUE CUP |
| 2025-26 | 08 Aug 2025 | Llanelli v Barry Town United 📄 | L | 0-2 | LEAGUE |
| 2025-26 | 10 Sep 2025 | Barry Town United v Llanelli | L | 0-1 | LEAGUE CUP |
| 2025-26 | 21 Nov 2025 | Llanelli v Barry Town United | L | 0-6 | WELSH CUP 3R |
| 2025-26 | 13 Jan 2026 | Barry Town United v Llanelli | L | 1-5 | LEAGUE |