Johnny Duffy boxeur
- combats
- 8
- gagnés
- 1
- perdus
- 7
- match nul
- 0
- Situation
- inactive
- Division
- lightweight
- Début
- 1916-08-04
- Taille
- -
- Allonge
- -
- âge
- -
- Né
- -
- Décès
- -
- Nationalité
- USA
| Date | Adversaire | Derniers résultats des adversaires | Lieu | Result |
|---|---|---|---|---|
| 1922-03-09 | Paul Fargo | WWWLLW | Columbus Hall, Yonkers | LOST KO |
| 1921-06-04 | Frankie Ryan | LW | Queensboro Stadium, Long Island City, Queens | LOST Technical knockout |
| 1921-04-11 | Johnny Donovan | LLDWWW | Grand Opera House, Boston | LOST KO |
| 1920-10-19 | Tony Peters | DLW | Commonwealth Sporting Club, New York | LOST Technical knockout |
| 1920-10-12 | George Gale | W | Woodhaven SC, Woodhaven, Queens | LOST Technical knockout |
| 1920-09-25 | Harry Condon | LWLLLW | Huntington S.C. Clubrooms, Huntington Station | LOST Points |
| 1920-01-15 | Panama George Dixon | WWWWD | Armory A.A. Hall, Bridgeport | LOST KO |