Johnny Duffy boxer
- bouts
- 4
- won
- 0
- lost
- 0
- draw
- 4
- Status
- inactive
- Division
- welterweight
- Debut
- 1913-07-24
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1914-10-05 | Joe Heffernan | WDLDWL | Olympia A.C., Philadelphia | DRAW |
| 1914-04-13 | Patsy Green | LWDLLD | University A.C., Cambridge | DRAW Points |
| 1914-03-17 | Patsy Green | WLWDLL | University A.C., Cambridge | DRAW Points |
| 1913-12-05 | Young Jack O'Brien | WLDDDW | Nonpareil A.C., Philadelphia | LOST |
| 1913-11-11 | Kid Thomas | DWLWDW | Newburyport A.C., Newburyport | DRAW Points |
| 1913-10-07 | Barney Snyder | W | Atlas A.A., Boston | DRAW Points |
| 1913-07-24 | Eddie Revoire | WWLWWD | Broadway A.C., Philadelphia | LOST |