Welsh National Championships - Neath & Afan Lido - February 16 - March 14 2003
Semifinals (in Neath)
| 2003-02-16 | 54kg | Nathan Probert | James Kwasigallah | 36:29 |
| 2003-02-16 | 54kg | Fred Janes | Daniel Jones | 30:20 |
| 2003-02-16 | 57kg | David Davies | Mark Roberts | RSCO 2 |
| 2003-02-16 | 60kg | Peter Ashton | Jamie Algar-Crease | 27:23 |
| 2003-02-16 | 60kg | Jamie Evans | Joe Rawlison | ??? |
| 2003-02-16 | 64kg | Gareth Perkins | Tristan Davies | 17:10 |
| 2003-02-16 | 64kg | Robert James | Vivian Bryan | AB 3 |
| 2003-02-16 | 69kg | Anthony Docherty | Aaron Thomas | RSCO 3 |
| 2003-02-16 | 69kg | Jamie Way | Graham Harvey | 32:18 |
| 2003-02-16 | 75kg | Michael Allen | David Tang | 25:18 |
| 2003-02-16 | 75kg | Francisco Borg | Stephan Hughes | 24:16 |
| 2003-02-16 | 81kg | Justin Jones | Richard Allen | RSCI 1 |
| 2003-02-16 | 81kg | Byron Hayward | James Walters | AB 3 |
| 2003-02-16 | 91kg | Stuart Frith | Alan Holloway | RSC 3 |
| 2003-02-16 | 91kg | Michael Davies | David Maes | 25:17 |
| 2003-02-16 | +91kg | Kevin Evans | Darren Morgan | 23:20 |
Finals (in Afan Lido)
| 2003-03-14 | 48kg | Neil Morrissey | Jamie Beasley | 17:11 |
| 2003-03-14 | 51kg | Matthew Edmonds | --- | WO. |
| 2003-03-14 | 54kg | Nathan Probert | Fred Janes | 35:15 |
| 2003-03-14 | 57kg | Darren Edwards | David Davies | 17:14 |
| 2003-03-14 | 60kg | Jamie Evans | Peter Ashton | +13:13 |
| 2003-03-14 | 64kg | Robert James | Gareth Perkins | WO. |
| 2003-03-14 | 69kg | Anthony Docherty | Jamie Way | 28:11 |
| 2003-03-14 | 75kg | Francisco Borg | Michael Allen | 32:11 |
| 2003-03-14 | 81kg | Justin Jones | Byron Hayward | KO 2 |
| 2003-03-14 | 91kg | Michael Davies | Stuart Frith | RSCO 3 |
| 2003-03-14 | +91kg | Kevin Evans | Lee Milsjen | RSC 2 |
extra bout
| 2003-03-14 | 51kg | Matthew Edmonds | Daniel Jones |
RSC 1 |