Johnny Mattero boxer
- bouts
- 37
- won
- 19
- lost
- 14
- draw
- 4
- Status
- inactive
- Division
- middleweight
- Debut
- 1937-03-09
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1949-04-11 | Bob Patterson | WWWWWD | Coliseum Bowl, San Francisco | LOST Technical knockout |
| 1949-03-07 | Bill McGee | LLLDWW | Coliseum Bowl, San Francisco | LOST Technical knockout |
| 1943-08-06 | Indian Doug Wilson | WLWWLL | National Hall, San Francisco | WIN Points |
| 1943-07-16 | Harvey Massey | LLLLW | National Hall, San Francisco | DRAW Points |
| 1943-07-02 | Harvey Massey | LLLLL | National Hall, San Francisco | LOST Points |
| 1943-06-18 | Joe Mack | WWLL | National Hall, San Francisco | WIN Technical knockout |
| 1943-06-04 | Leroy Wade | WLWWLD | National Hall, San Francisco | WIN Points |
| 1943-05-27 | Leroy Wade | LWLWWL | Civic Auditorium, San Jose | DRAW Points |
| 1943-03-19 | Billy McCoy | LWWWLW | National Hall, San Francisco | LOST Points |
| 1943-03-05 | Ira Hughes | WWLLLW | National Hall, San Francisco | WIN Points |
| 1941-08-04 | Lorenzo Pedro | LLLLW | Coliseum Bowl, San Francisco | LOST Technical knockout |
| 1941-06-26 | George Evans | WLWWWD | Auditorium, Oakland | DRAW Points |
| 1941-06-09 | Booker T Washington | WWWWLL | Memorial Auditorium, Sacramento | DRAW Points |
| 1941-06-05 | Bert Velasquez | LWLLLL | Coliseum Bowl, San Francisco | WIN Technical knockout |
| 1941-02-13 | George Evans | WWWWWW | California Hall, San Francisco | WIN Technical knockout |
| 1941-02-06 | George Evans | WWWWWW | National Hall, San Francisco | LOST Points |
| 1941-01-23 | Al LaBoa | WWWLLL | National Hall, San Francisco | WIN KO |
| 1941-01-13 | Bob Munzo | LWDLLD | Coliseum Bowl, San Francisco | WIN Technical knockout |
| 1940-11-28 | Duke Cahill | WWWW | Memorial Auditorium, Sacramento | WIN Technical knockout |
| 1939-12-27 | Watson Jones | DWWWWD | National Hall, San Francisco | LOST Technical knockout |
| 1939-10-18 | Johnny Crawford | WWWWWL | Auditorium, Oakland | WIN Technical knockout |
| 1939-09-11 | Joe Allen | WLLLLL | National Hall, San Francisco | WIN Points |
| 1939-08-28 | Joe Allen | DWLLLL | National Hall, San Francisco | WIN Points |
| 1939-08-08 | Frank Henry | WWWLW | Civic Auditorium, San Jose | WIN Technical knockout |
| 1938-12-12 | Billy Latka | WWLLWD | National Hall, San Francisco | LOST Technical knockout |
| 1938-11-21 | Lloyd Delucchi | LWDDDW | National Hall, San Francisco | LOST Technical knockout |
| 1938-10-25 | Sidney Brent | LLLLLL | Civic Auditorium, Stockton | LOST Technical knockout |
| 1938-07-06 | Fred King | DWDLD | National Hall, San Francisco | WIN KO |
| 1938-06-22 | Len Blanchard | WDWWDW | National Hall, San Francisco | LOST Points |
| 1937-11-03 | Wally Gerrard | DLDDLW | Auditorium, Oakland | WIN Points |
| 1937-10-29 | Loren Hunt | WWLW | Dreamland Auditorium, San Francisco | WIN KO |
| 1937-09-29 | Joey Roberts | DWLLWD | Auditorium, Oakland | LOST Technical knockout |
| 1937-09-15 | Harold Logwood | LL | Auditorium, Oakland | WIN Technical knockout |
| 1937-08-09 | Johnny Kunich | LLWLLL | Civic Auditorium, San Francisco | WIN Points |
| 1937-06-11 | Johnny Kunich | WLLLLW | Dreamland Auditorium, San Francisco | WIN Points |
| 1937-06-08 | Wally Gerrard | LDLDDL | Civic Auditorium, San Jose | LOST KO |
| 1937-03-09 | Clay Rowan | WWL | Civic Auditorium, San Jose | LOST Points |