13.United States National Championships
Union Hall, Boston
April 3, 1903
Quarterfinals (maybe not full)
| 1903-04-03 | 52,2kg | Fred Feig | John Bryson | PTS |
| 1903-04-03 | 56,7kg | Ambrose McGarry | Bert James | PTS |
| 1903-04-03 | 56,7kg | Joseph Jordan | Ralph Hutchinson | DQ |
| 1903-04-03 | 61,2kg | Robert Adler | R.J.Grant | PTS |
Semifinals (maybe not full)
| 1903-04-03 | 52,2kg | Thomas Stone | Harry Brown | PTS |
| 1903-04-03 | 52,2kg | Fred Feig | Thorning | PTS |
| 1903-04-03 | 56,7kg | Austin Maguire | Eddie Randolph | PTS |
| 1903-04-03 | 56,7kg | Ambrose McGarry | Joseph Jordan | PTS |
| 1903-04-03 | 61,2kg | Robert Adler | M.J.Spangler | PTS |
| 1903-04-03 | 61,2kg | John Leavy | James Wishang | KO |
| 1903-04-03 | 71,7kg | William Rodenbach | B.I.Hayes | PTS |
Finals
| 1903-04-03 | 47,6kg | R.McKinley | Ray George | PTS |
| 1903-04-03 | 52,2kg | Thomas Stone | Fred Feig | PTS |
| 1903-04-03 | 56,7kg | Ambrose McGarry | Austin Maguire | PTS |
| 1903-04-03 | 61,2kg | John Leavy | Robert Adler | PTS |
| 1903-04-03 | 65,8kg | John Leavy | Albert Hickey | PTS |
| 1903-04-03 | 71,7kg | William Rodenbach | George Hayes | KO |
| 1903-04-03 | +71,7kg | Emery Payne | Andrew Gabrina | TKO 1 |