Johnny Mayo boxer
- bouts
- 25
- won
- 15
- lost
- 8
- draw
- 2
- Status
- inactive
- Division
- featherweight
- Debut
- 1909-05-11
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- Italy
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1922-10-03 | Jack Powlus | debut | Armory, Reading | LOST |
| 1922-04-15 | Ty Cobb | WDLWLW | National A.C., Philadelphia | WIN KO |
| 1922-02-04 | Ty Cobb | WWWDLW | National A.C., Philadelphia | WIN KO |
| 1922-02-02 | Jackie Moore | WWWW | Armory, Reading | LOST |
| 1921-09-22 | Kid Powell | L | Dunbar A.C., Philadelphia | WIN |
| 1921-06-06 | Tony Daniels | WLDLLL | 11th Street Arena, Philadelphia | WIN |
| 1921-05-24 | Joe Chaney | DWWLWW | Harrisburg | LOST Points |
| 1921-03-29 | Andy Smith | DWWWLL | Auditorium, Harrisburg | WIN Technical knockout |
| 1921-03-01 | Nate Isaacman | WWWWDW | Chestnut Street Auditorium, Harrisburg | WIN |
| 1919-12-22 | Joe Shear | WWWDLD | Monument National, Montreal | LOST |
| 1919-12-01 | Geraldi | debut | Montreal | LOST KO |
| 1919-06-02 | Joe Masters | DLLWWL | Olympia A.C., Philadelphia | DRAW |
| 1919-03-20 | Jack Russo | LLWWWL | Feeley Hall, Hazleton | WIN KO |
| 1917-09-14 | Toughy Ramser | WWWDWW | Cleveland | LOST |
| 1917-05-25 | Al Britt | LWWLLW | Gayety Theater, Baltimore | LOST Points |
| 1917-03-10 | George KO Chaney | LWWWWL | National A.C., Philadelphia | LOST |
| 1917-02-26 | Johnny Schultz | WDWLDW | Olympia A.C., Philadelphia | WIN |
| 1917-02-05 | Eddie Smith | LW | Olympia A.C., Philadelphia | WIN KO |
| 1917-02-01 | Al Britt | LWLWWL | Auditorium, Reading | WIN KO |
| 1917-01-01 | Eddie Morgan | DDLLLL | Olympia A.C., Philadelphia | WIN |
| 1916-12-11 | Young Goldie | WWLLWD | Olympia A.C., Philadelphia | DRAW |
| 1916-11-30 | Sailor Smiley | LDWWWL | Olympia A.C., Philadelphia | WIN |
| 1916-11-20 | Sailor Smiley | LLDWWW | Olympia A.C., Philadelphia | WIN |
| 1916-11-16 | Fighting Bob Givler | DLDLLL | Auditorium, Reading | LOST |
| 1916-11-15 | Al Britt | LLLWLW | Monumental Theater, Baltimore | LOST Points |
| 1916-10-30 | Fighting Bob Givler | LDLDLL | Auditorium, Reading | WIN Technical knockout |
| 1916-10-09 | Charley Leonard | WWWLWW | Olympia A.C., Philadelphia | WIN |
| 1916-04-06 | Billy Waltz | WWW | Lancaster | LOST |
| 1916-03-18 | Johnny Burns | WWLWLD | National A.C., Philadelphia | WIN |
| 1916-02-28 | Kohoma Kid | LLWLLD | Olympia A.C., Philadelphia | WIN |
| 1916-02-05 | Jimmy Jarvis | LLLLLL | National A.C., Philadelphia | WIN |
| 1915-09-28 | Young Fulton | WLWDL | Douglas A.C., Philadelphia | WIN |
| 1915-09-07 | Battling Kelly | WLWLWW | Monumental Theater, Baltimore | WIN KO |
| 1915-05-25 | Frankie Nelson | WLLLLW | Palace Theater, Baltimore | LOST Points |
| 1914-12-21 | KO Mars | WWLWLD | Olympia A.C., Philadelphia | LOST |
| 1914-12-07 | Harry Diamond | WWWLLW | Olympia A.C., Philadelphia | WIN |
| 1914-11-16 | Tommy Buck | DWWWLW | Olympia A.C., Philadelphia | LOST |
| 1914-10-19 | Young Fulton | WWLLLL | Olympia A.C., Philadelphia | WIN |
| 1914-10-05 | Young Fulton | LLWWLL | Olympia A.C., Philadelphia | WIN |
| 1914-09-21 | Young Fulton | LLLWWL | Olympia A.C., Philadelphia | WIN |
| 1914-07-20 | Joe Daley | DLWWWW | North Penn A.C., Philadelphia | DRAW |
| 1914-04-04 | Frankie Rice | WW | National A.C., Philadelphia | LOST |
| 1914-03-30 | Kid Burns | DLWL | Orleans A.C., New Orleans | LOST Points |
| 1913-12-06 | Paul Til | WWDWLL | Wonderland, Paris | LOST Points |
| 1913-12-03 | Christian Gempeler | LDWWLW | Salle Wagram, Paris | WIN Corner retirement |
| 1913-10-20 | Benny Kaufman | WDLWL | Olympia A.C., Philadelphia | DRAW |
| 1913-10-11 | Paddy Callahan | LLLWLD | National A.C., Philadelphia | WIN |
| 1913-10-04 | Tommy Hopkins | WWLLLL | National A.C., Philadelphia | WIN KO |
| 1913-09-25 | Grover Hayes | DLDWLW | Broadway A.C., Philadelphia | LOST |
| 1913-09-11 | Preston Brown | LDWWWW | Broadway A.C., Philadelphia | LOST |
| 1912-11-28 | Mel Coogan | WWWLWW | Brooklyn Beach A.C., Brooklyn | LOST |
| 1912-07-10 | Packy Hommey | WWLDWW | St. Nicholas Arena, New York | LOST Technical knockout |
| 1912-06-08 | Dave Kennedy | debut | Fairmont A.C., Bronx | LOST |
| 1912-05-11 | Benny Kaufman | DLWWLD | National A.C., Philadelphia | LOST |
| 1912-02-19 | Johnny Gallant | LDDLDL | Whip City A.C., Westfield | WIN Points |
| 1912-01-15 | Patsy Kline | LLLWLL | American A.C., Philadelphia | WIN |
| 1912-01-01 | Billy Galley | WLDW | American A.C., Philadelphia | LOST |
| 1911-12-25 | Harry Dillon | DLLLDW | American A.C., Philadelphia | WIN KO |
| 1911-12-11 | Charley Thomas | WLWWWD | American A.C., Philadelphia | WIN |
| 1911-11-18 | Joe Daley | DLLWDW | National A.C., Philadelphia | WIN |
| 1911-11-11 | Mike Malone | LWLWLW | National A.C., Philadelphia | DRAW |
| 1911-10-28 | George Mason | WWWDDL | National A.C., Philadelphia | WIN |
| 1911-10-06 | Eddie Forrest | WLDLWW | Standard Theater, Philadelphia | LOST |
| 1911-08-28 | Terry Nelson | LD | National A.C., Philadelphia | WIN |
| 1911-06-14 | Harry Sealey | debut | Gayety Theater, Baltimore | DRAW Points |
| 1911-06-05 | Jimmy Dougherty | LWWDLL | Gayety Theater, Baltimore | DRAW Points |
| 1911-05-08 | Bobby Scanlon | LWWWLW | American A.C., Philadelphia | LOST |
| 1911-03-27 | Dave Mitchell | LWWLWL | American A.C., Philadelphia | LOST |
| 1911-03-22 | George Mason | WDW | Germania Maennerchor Hall, Baltimore | WIN Points |
| 1911-03-13 | Dave Mitchell | WLWWLW | American A.C., Philadelphia | WIN |
| 1911-02-21 | George Murray | LLDLLL | Armory, Boston | WIN Points |
| 1911-02-18 | Terry Fitzgerald | WWWLLL | American A.C., Philadelphia | DRAW |
| 1911-02-04 | Jimmy Fryer | WDLDWD | American A.C., Philadelphia | LOST |
| 1911-01-31 | Johnny | debut | Douglas A.C., Philadelphia | WIN |
| 1911-01-02 | Mike Malone | LLDWLW | Nonpareil A.C., Philadelphia | DRAW |
| 1910-12-27 | Handsome Charlie Smith | WWLWWL | Douglas A.C., Philadelphia | LOST |
| 1910-12-20 | Matty Herman | WWDDWD | Douglas A.C., Philadelphia | DRAW |
| 1910-11-18 | Young Palmer | WWDLLL | Central A.C., Philadelphia | DRAW |
| 1910-11-14 | Matty Herman | LWWDDW | Grim A.C., Philadelphia | DRAW |
| 1910-11-09 | Johnny Phillips | LLLLLL | National A.C., Philadelphia | WIN |
| 1910-10-29 | Jimmy Fryer | DDLLLW | National A.C., Philadelphia | LOST |
| 1910-09-26 | Willie Russell | WWWWWW | Bastian A.C., Philadelphia | LOST |
| 1910-09-17 | Willie Russell | LWWWWW | National A.C., Philadelphia | LOST |
| 1910-05-10 | Tommy Stone | DWWLLW | Douglas A.C., Philadelphia | DRAW |
| 1910-04-04 | Bobby Williams | DDLWDW | Willis A.C., Philadelphia | LOST |
| 1910-02-19 | Jimmy Brennan | LWLLLL | National A.C., Philadelphia | DRAW |
| 1910-02-05 | Jimmy Brennan | DLWLLL | National A.C., Philadelphia | WIN |
| 1910-01-20 | Willie Houck | WWWWWD | Lancaster A.C., Lancaster | LOST |
| 1910-01-17 | Willie Russell | DWWWDD | New Philadelphia A.C., Philadelphia | LOST |
| 1910-01-01 | Kid Beebe | LLDLLD | Lancaster A.C., Lancaster | LOST |
| 1909-12-18 | Kid Beebe | WLLDLL | National A.C., Philadelphia | DRAW |
| 1909-11-16 | Young Palmer | WDDWDW | Douglas A.C., Philadelphia | LOST |
| 1909-11-02 | Willie Houck | WWDLDL | Douglas A.C., Philadelphia | LOST |
| 1909-10-18 | Phil McGovern | WWWLDW | New Philadelphia A.C., Philadelphia | LOST |
| 1909-09-22 | Eddie Doyle | WLDWWL | New Philadelphia A.C., Philadelphia | DRAW |
| 1909-09-16 | Young Sleuth | DDWWLW | Broadway A.C., Philadelphia | LOST |
| 1909-09-15 | Tommy West | LDDDLD | New Philadelphia A.C., Philadelphia | WIN Technical knockout |
| 1909-09-01 | Young Terry McGovern | LDDWDL | New Philadelphia A.C., Philadelphia | WIN |
| 1909-08-25 | Tommy Houck | WLDDWL | New Philadelphia A.C., Philadelphia | DRAW |
| 1909-08-17 | Joe Ferguson | WWLDDD | Douglas A.C., Philadelphia | WIN |
| 1909-08-10 | Willie Houck | WLWWLL | Douglas A.C., Philadelphia | WIN |
| 1909-06-09 | Young Joe Choynski | LD | National A.C., Philadelphia | WIN |
| 1909-05-25 | Jerry Sullivan | LLWWDL | Douglas A.C., Philadelphia | DRAW |
| 1909-05-22 | Philadelphia Pal Moore | WWDWWW | National A.C., Philadelphia | LOST |
| 1909-05-11 | Lew Baker | WLWLDW | Douglas A.C., Philadelphia | LOST |
