Wildcat Willie O'Brien boxeador
- luta
- 10
- vitória
- 1
- derrota
- 6
- empate
- 2
- Estado
- inactive
- divisão
- welterweight
- Estreia
- 1922-06-16
- Altura
- -
- Alcance
- -
- Idade
- -
- Born
- -
- Death
- -
- Nascimento
- USA
| Data | Adversário | Últimos resultados dos adversários | Lugar | Resultado |
|---|---|---|---|---|
| 1930-02-13 | Floyd Soldier Brown | DWWDLW | Greenwich Coliseum, Tacoma | LOST Points |
| 1930-01-29 | Phil Rispoli | debut | Crystal Pool, Seattle | LOST Points |
| 1929-09-17 | Joe Townsend | WWDDWD | Civic Ice Arena, Seattle | LOST Points |
| 1929-05-09 | Tommy Jeffers | WWW | Greenwich Coliseum, Tacoma | DRAW Points |
| 1929-04-04 | Norman Jones | debut | Tacoma | LOST Points |
| 1928-03-29 | Walter Cleghorn | WWWDWW | Greenwich Coliseum, Tacoma | LOST Points |
| 1928-02-06 | Jack Napier | LLLLWL | Olympic A.C., Tacoma | DRAW Points |
| 1928-01-30 | Ray Dempsey | L | Olympic A.C., Tacoma | WIN Points |
| 1927-12-30 | Joe Hansler | debut | Midland A.C., Midland | LOST Points |
| 1922-06-16 | Tex Ray | LW | Business Men's A.C., Wichita | NC |