Bill Mahan (Billy Mayhan) boxer
- bouts
- 18
- won
- 5
- lost
- 11
- draw
- 1
- Status
- inactive
- Division
- lightweight
- Debut
- 1888-08-20
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1900-03-30 | Dick O'Connell | DDL | Star Theatre, Chicago | LOST |
| 1900-03-17 | Tommy Cleary | DWDLWL | Chicago A.C., Chicago | LOST KO |
| 1897-03-22 | Rube Ferns | WWLWWD | Opera House, Weir | LOST KO |
| 1896-12-31 | Rube Ferns | WWWWLW | Opera House, Weir | LOST Technical knockout |
| 1894-12-07 | Paddy Purtell | WWLLWD | Central theatre, Denver | WIN Corner retirement |
| 1894-08-01 | Mexican Pete Everett | WWWW | LOST KO |
|
| 1894-05-09 | Frank Richards | LLWLDD | Salt Lake City | WIN Points |
| 1894-02-03 | John Fenton | debut | Standard Theater, Boise | NC No Contest |
| 1893-02-05 | Bobby Dobbs | WWLDWW | Sacramento | LOST Points |
| 1892-11-23 | Jim Burge | WWWDD | Palo Alto A.C., San Francisco | LOST KO |
| 1892-02-08 | Billy Gallagher | debut | Occidental A.C., San Francisco | LOST KO |
| 1891-07-29 | Danny Needham | WWWLWW | San Francisco | LOST KO |
| 1890-10-14 | Danny Needham | WLWWD | Seattle AC, Seattle | LOST KO |
| 1890-04-29 | Billy Shannon | WL | Mowery's Hall, San Francisco | WIN KO |
| 1890-02-17 | Jimmy Griffin | L | Occidental A.C., San Francisco | WIN Points |
| 1889-07-31 | George Mullholland | WDDWDW | Southern California A.C., Los Angeles | WIN Technical knockout |
| 1889-01-09 | George Mullholland | LDWDDW | Golden Gate Club, San Francisco | DRAW Points |
| 1888-08-20 | Tom Meadows | DDWWWW | Bay City A.C., San Francisco | LOST KO |