| Name | Club | E1 | Pld | New | +/- |
|---|---|---|---|---|---|
| Mike Maguire | Pentyrch | 1678 | 0 | 1678 | 0 |
| Dave Mahoney | Barry | 1394 | 0 | 1394 | 0 |
| Tom Martin | North Cardiff | 1210 | 0 | 1210 | 0 |
| Viv Martin | Pentyrch | 1622 | 0 | 1622 | 0 |
| Harshith Maruthireddy | Cardiff | 1336 | 0 | 1336 | 0 |
| Jack Mason | Cardiff | 964 | 0 | 964 | 0 |
| Ken Mason | Pontypridd | 1536 | 0 | 1536 | 0 |
| Joshua McKenna | Cardiff | 960 | 0 | 960 | 0 |
| Mike McLoughlin | Pentyrch | 1359 | 0 | 1359 | 0 |
| Alex Menzies | Cardiff | 974 | 0 | 974 | 0 |
| Brenda Miles | Nelson | 1404 | 0 | 1404 | 0 |
| Phil Mitchell | Pontypridd | 1206 | 0 | 1206 | 0 |
| Hugh Morgan | Caerphilly | 1640 | 0 | 1640 | 0 |
| Richard Morgan | Pentyrch | 1382 | 0 | 1382 | 0 |
| Gwilym Moses | Bridgend | 1130 | 0 | 1130 | 0 |