Irish National Championships - Dublin - February 7-22 2003
Preliminaries
| 2003-02-07 | 69kg | Brian Kerr | Patrick Jennings | 14:10 |
| 2003-02-07 | 69kg | Hugh Joyce | Thomas Hamill | 24:16 |
| 2003-02-07 | 75kg | Sean O'Mara | Keith Whelan | 12:5 |
| 2003-02-07 | 75kg | Leon Senior | Patrick Murray | 15:8 |
| 2003-02-07 | 75kg | Patrick Whelan | Richard Fox | 13:8 |
| 2003-02-07 | 75kg | Darren Sutherland | John Waldron | 22:5 |
| 2003-02-07 | 75kg | Andy Lee | Frank O'Brien | 25:16 |
| 2003-02-07 | 81kg | Patrick Smyth | Shane O'Sullivan | RSC 4 |
Quarterfinals
| 2003-02-08 | 54kg | Brian Gillen | Eric Donovan | 25:18 |
| 2003-02-08 | 57kg | Raymond Kane | Sean McAnee | 27:18 |
| 2003-02-08 | 57kg | Eamon Touhey | Patrick Hyland | 18:13 |
| 2003-02-08 | 60kg | Andrew Murray | Terry Carlyle | 13:8 |
| 2003-02-08 | 60kg | John Paul Campbell | Edward Hyland | 11:10 |
| 2003-02-08 | 60kg | Noel Monteith | Paul Simpson | 19:15 |
| 2003-02-08 | 60kg | Garreth Dunne | John Joe McDonagh | 16:14 |
| 2003-02-08 | 64kg | Paul McCloskey | Jamie Dowling | 13:7 |
| 2003-02-08 | 64kg | Fergus Turner | Dermot Hamill | 13:7 |
| 2003-02-08 | 64kg | Michael Kelly | Aodh Carlyle | 21:14 |
| 2003-02-08 | 64kg | Roy Sheahan | Terry O'Neill | 19:9 |
| 2003-02-08 | 69kg | James Moore | Ciaran Curtis | RSC 4 |
| 2003-02-08 | 69kg | Henry Coyle | Joe Harkin | 18:10 |
| 2003-02-08 | 69kg | Thomas Blaney | Emmet Colgan | 15:14 |
| 2003-02-08 | 69kg | Hugh Joyce | Brian Kerr | 21:10 |
| 2003-02-08 | 75kg | Eamonn O'Kane | Edward Healy | 19:5 |
| 2003-02-08 | 75kg | Thomas Moran | Sean O'Mara | 12:8 |
| 2003-02-08 | 75kg | Leon Senior | Patrick Whelan | 7:3 |
| 2003-02-08 | 75kg | Andy Lee | Darren Sutherland | 24:12 |
| 2003-02-08 | 81kg | Ian Timms | Marvin Lee | 7:6 |
| 2003-02-08 | 81kg | Conall Carmichael | Sean O'Grady | 22:5 |
| 2003-02-08 | 81kg | Kenneth Egan | Donnacha Cuttriss | RSCO 2 |
| 2003-02-08 | 81kg | Michael McDonagh | Patrick Smyth | 9:5 |
| 2003-02-08 | 91kg | Thomas Donnelly | John McKeogh | RSCO 3 |
Semifinals
| 2003-02-14 | 48kg | John Paul Kinsella | Conor Ahern | 18:13 |
| 2003-02-14 | 48kg | Paul Baker | James Moore | RSCO 2 |
| 2003-02-15 | 51kg | Paul Hyland | Derek McArdle | 16:7 |
| 2003-02-14 | 54kg | Martin Lindsey | Dermot Lawlor | 24:11 |
| 2003-02-14 | 54kg | Brian Gillen | Damien McKenna | 21:12 |
| 2003-02-15 | 57kg | Stephen Ormond | Raymond Kane | 18:8 |
| 2003-02-15 | 57kg | Eamon Touhey | Harry Cunningham | WO. |
| 2003-02-14 | 60kg | Andrew Murray | John Paul Campbell | 22:13 |
| 2003-02-14 | 60kg | Garreth Dunne | Noel Monteith | 13:8 |
| 2003-02-15 | 64kg | Paul McCloskey | Fergus Turner | 15:6 |
| 2003-02-15 | 64kg | Michael Kelly | Roy Sheahan | 9:7 |
| 2003-02-14 | 69kg | James Moore | Henry Coyle | 25:13 |
| 2003-02-14 | 69kg | Thomas Blaney | Hugh Joyce | 15:14 |
| 2003-02-15 | 75kg | Eamonn O'Kane | Thomas Moran | 11:8 |
| 2003-02-15 | 75kg | Andy Lee | Leon Senior | 17:3 |
| 2003-02-14 | 81kg | Conall Carmichael | Ian Timms | 20:13 |
| 2003-02-14 | 81kg | Kenneth Egan | Michael McDonagh | 10:3 |
| 2003-02-15 | 91kg | Alan Reynolds | Philip Byrne | RSC 3 |
| 2003-02-15 | 91kg | Thomas Donnelly | Jimmy Upton | 15:13 |
| 2003-02-14 | +91kg | Martin Rogan | Gary Dargan | RSCH 1 |
| 2003-02-15 | +91kg | Thomas Crampton | Brendan Sherry | RSCO 3 |
Finals
| 2003-02-21 | 48kg | Paul Baker | John Paul Kinsella | 20:8 |
| 2003-02-21 | 51kg | Paul Hyland | Thomas Lee | 13:8 |
| 2003-02-21 | 54kg | Brian Gillen | Martin Lindsey | 22:13 |
| 2003-02-21 | 57kg | Stephen Ormond | Eamon Touhey | 26:9 |
| 2003-02-21 | 60kg | Andrew Murray | Garreth Dunne | 27:5 |
| 2003-02-21 | 64kg | Paul McCloskey | Michael Kelly | 10:4 |
| 2003-02-21 | 69kg | James Moore | Thomas Blaney | RSCO 3 |
| 2003-02-21 | 75kg | Andy Lee | Eamonn O'Kane | 27:12 |
| 2003-02-21 | 81kg | Kenneth Egan | Conall Carmichael | 16:4 |
| 2003-02-21 | 91kg | Alan Reynolds | Thomas Donnelly | 32:10 |
| 2003-02-21 | +91kg | Thomas Crampton | Martin Rogan | 10:9 |
Box-Offs
| 2003-02-22 | 60kg | John Paul Campbell | Paul Simpson | 24:10 |
| 2003-02-22 | 64kg | Roy Sheahan | Aodh Carlyle | 11:10 |
| 2003-02-22 | 69kg | Henry Coyle | Hugh Joyce | 31:13 |
| 2003-02-22 | 69kg | Cathal McAuley | Daniel Quinn | ??? |
| 2003-02-22 | 75kg | Darren Sutherland | Richard Fox | RSC 3 |