| Name | Club | E1 | Pld | New | +/- |
|---|---|---|---|---|---|
| Krzysztof Jakubiak | Cardiff | 835 | 6 | 859 | +24 |
| Dai James | Pontypridd | 1918 | 9 | 1913 | -5 |
| Jonathan James | Nelson | 2014 | 0 | 2014 | 0 |
| Wayne James | Porthcawl | 1493 | 11 | 1480 | -13 |
| Roger Jenkins | Pontypridd | 1355 | 15 | 1378 | +23 |
| David Jiles | Penarth | 1955 | 18 | 1918 | -37 |
| Richard Jiles | Penarth | 889 | 0 | 889 | 0 |
| Michael John | Bridgend | 808 | 8 | 756 | -52 |
| Dennis Jones | Caerphilly | 1637 | 14 | 1668 | +31 |
| Derek Jones | Pontypridd | 1945 | 10 | 1967 | +22 |
| Gruff Jones | Cardiff | 1521 | 4 | 1544 | +23 |
| Iolo Jones | Caerphilly | 1350 | 0 | 1350 | 0 |
| Jeremy Jones | Nelson | 1595 | 24 | 1635 | +40 |
| Mark Jones | Bridgend | 1807 | 18 | 1795 | -12 |
| Martin Jones | Caerphilly | 1579 | 21 | 1588 | +9 |
| Mike Jones | Pontypridd | 1627 | 0 | 1627 | 0 |
| Phil Jones | Barry | 1356 | 10 | 1364 | +8 |
| Richard Jones | Bridgend | 1699 | 0 | 1699 | 0 |
| Mike Joslin | Caerphilly | 1376 | 13 | 1405 | +29 |
| Sam Jukes | Barry | 822 | 4 | 892 | +70 |