Johnny Duffy boxeur
- combats
- 11
- gagnés
- 11
- perdus
- 0
- match nul
- 0
- Situation
- inactive
- Division
- -
- Début
- 1914-11-26
- Taille
- -
- Allonge
- -
- âge
- -
- Né
- -
- Décès
- -
- Nationalité
- USA
| Date | Adversaire | Derniers résultats des adversaires | Lieu | Result |
|---|---|---|---|---|
| 1928-12-03 | Billy Cooper | WWDWLD | Fairview Arena, Detroit | WIN Points |
| 1928-03-07 | Carlo Mazzola | DLWWWW | Olympia Stadium, Detroit | WIN Points |
| 1924-01-22 | George LaBate | WLW | Mechanics Building, Boston | WIN KO |
| 1923-12-06 | Benny O'Neil | WLLLLW | Crescent Rink, Lowell | WIN |
| 1923-10-12 | Babe Adams | debut | Crescent Rink, Lowell | WIN Points |
| 1923-09-20 | Benny O'Neil | LWWLLL | Crescent Rink, Lowell | WIN Points |
| 1923-09-13 | Kid Cullen | debut | Crescent Rink, Lowell | WIN Technical knockout |
| 1923-07-19 | Tony Roy | WL | Crescent Rink, Lowell | WIN Technical knockout |
| 1923-04-30 | Benny O'Neil | LWLLWW | Associate Hall, Lowell | WIN Points |
| 1923-04-16 | Johnny Hebert | WWWWLW | Associate Hall, Lowell | WIN Points |
| 1914-11-26 | Young McCartney | WLWLLD | Olympia A.C., Philadelphia | WIN |