P: 9 W: 3 D: 1 L: 5
Last meeting: 26 Dec 1973 — Llanelli v Swansea Town Reserves (1-3)
| Season | Date | Match | Result | Score | Competition |
|---|---|---|---|---|---|
| 1948-49 | 25 Dec 1948 | Llanelli v Swansea Town Reserves | W | 3-2 | LEAGUE |
| 1948-49 | 06 Apr 1949 | Swansea Town Reserves v Llanelli | L | 0-2 | LEAGUE |
| 1948-49 | 14 May 1949 | Llanelli v Swansea Town Reserves | L | 1-5 | WEST WALES SENIOR CUP |
| 1967-68 | 26 Dec 1967 | Llanelli v Swansea Town Reserves | W | 4-1 | LEAGUE |
| 1967-68 | 02 Mar 1968 | Swansea Town Reserves v Llanelli | LEAGUE | ||
| 1968-69 | 26 Dec 1968 | Llanelli v Swansea Town Reserves | D | 1-1 | LEAGUE |
| 1968-69 | 24 Apr 1969 | Swansea Town Reserves v Llanelli | L | 1-2 | LEAGUE |
| 1969-70 | Swansea Town Reserves v Llanelli | LEAGUE | |||
| 1969-70 | 26 Dec 1969 | Llanelli v Swansea Town Reserves | W | 1-0 | LEAGUE |
| 1972-73 | 26 Dec 1972 | Llanelli v Swansea Town Reserves | L | 0-2 | LEAGUE |
| 1973-74 | 26 Dec 1973 | Llanelli v Swansea Town Reserves | L | 1-3 | LEAGUE |