Willie O'Brien boxer
- bouts
- 34
- won
- 9
- lost
- 19
- draw
- 5
- Status
- inactive
- Division
- featherweight
- Debut
- 1929-10-16
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1937-08-18 | Nesto Samuels | W | 40 & 8 Arena, Corpus Christi | LOST Points |
| 1937-08-03 | Frankie Limon | DLLWWW | Walkathon Arena, San Antonio | LOST Points |
| 1936-07-14 | Steve Padon | LDWLDL | 610 Arena, Houston | LOST Points |
| 1934-04-24 | Al Lopez | WLLDWD | Walkathon Arena, San Antonio | LOST Points |
| 1934-04-01 | Duke Tramel | WWLWWW | LOST KO |
|
| 1934-02-27 | Al Lopez | WWWLLD | Walkathon Arena, San Antonio | LOST Points |
| 1933-10-27 | Kid Bruno | WWWWWW | American Legion Arena, Harlingen | LOST Technical knockout |
| 1933-07-11 | Mike Delgado | DLWWWW | Crawford Roof Arena, San Antonio | LOST Points |
| 1933-05-08 | Martin Manes | LLWWWW | Aztec Arena, San Antonio | LOST Points |
| 1933-03-27 | Manuel Montoya | L | Aztec Arena, San Antonio | WIN Points |
| 1933-03-16 | Tommy Perez | debut | Beethoven Hall, San Antonio | WIN Points |
| 1933-03-07 | Blackie Paez | LLDWWW | Beethoven Hall, San Antonio | DRAW Points |
| 1933-03-06 | Bat Ancira | debut | Aztec Arena, San Antonio | LOST Points |
| 1933-01-16 | Pancho Martinez | DLLDL | Aztec Arena, San Antonio | WIN Points |
| 1932-11-15 | Kid Williams | WWDWWW | Beethoven Hall, San Antonio | LOST Technical knockout |
| 1932-10-11 | Benny Perez | DDLLLW | Beethoven Hall, San Antonio | LOST Points |
| 1932-10-04 | Kid George | WLLWLD | Beethoven Hall, San Antonio | DRAW Points |
| 1932-09-21 | Tony Martinez | DDL | Beethoven Hall, San Antonio | LOST Points |
| 1932-09-15 | Mickey Garcia | debut | Labor Temple Roof, San Antonio | WIN KO |
| 1932-09-08 | KO Riley | WWLLL | Labor Temple Roof, San Antonio | WIN Points |
| 1932-08-22 | Kid Joe | debut | Labor Temple Roof, San Antonio | WIN Technical knockout |
| 1932-07-12 | Benny Perez | DLLLLW | Beethoven Hall, San Antonio | DRAW Points |
| 1932-06-28 | Benny Perez | DDLLLL | Beethoven Hall, San Antonio | LOST Points |
| 1932-06-21 | Jimmy Azarella | debut | Beethoven Hall, San Antonio | DRAW Points |
| 1932-06-16 | Kid Anaya | debut | Expo Arena, San Antonio | LOST Points |
| 1931-11-04 | Al Lopez | WWWDW | Beethoven Hall, San Antonio | LOST Points |
| 1931-03-04 | Benny Perez | DLWWLD | Beethoven Hall, San Antonio | DRAW |
| 1931-02-24 | Mike Delgado | WWWD | Beethoven Hall, San Antonio | LOST Points |
| 1931-02-03 | Pancho Torres | WWW | Beethoven Hall, San Antonio | WIN |
| 1931-01-20 | Bill Saunders | D | Beethoven Hall, San Antonio | WIN Technical knockout |
| 1931-01-06 | Al Lopez | WWWD | Beethoven Hall, San Antonio | LOST |
| 1930-12-23 | Kid George | WLLLLL | Beethoven Hall, San Antonio | LOST |
| 1930-12-09 | Herman Brateman | debut | Beethoven Hall, San Antonio | WIN |
| 1930-11-26 | Pancho Torres | WW | Beethoven Hall, San Antonio | LOST |
| 1930-11-19 | Pablo Torres | debut | Beethoven Hall, San Antonio | WIN |
| 1930-11-12 | Kid Holton | debut | Beethoven Hall, San Antonio | WIN |
| 1930-11-05 | Henry Moreno | LWWWWL | Beethoven Hall, San Antonio | DRAW Points |
| 1930-10-15 | Pancho Torres | W | Beethoven Hall, San Antonio | LOST |
| 1930-10-08 | Pancho Flores | debut | Beethoven Hall, San Antonio | WIN KO |
| 1930-08-12 | Martin Manes | WLLDDD | Beethoven Hall, San Antonio | WIN |
| 1930-08-05 | Willie Ortiz | LL | Beethoven Open Air Arena, San Antonio | WIN |
| 1930-06-10 | Frankie Limon | LWD | Beethoven Open Air Arena, San Antonio | LOST |
| 1930-05-27 | Abe Goldstein | W | Beethoven Hall, San Antonio | LOST |
| 1930-04-15 | Carlos Macias | L | Business Men's A.C., San Antonio | WIN |
| 1930-03-25 | Raymond Solis | LLLLLD | Beethoven Hall, San Antonio | DRAW |
| 1930-03-18 | Manuel Martinez | debut | Beethoven Hall, San Antonio | WIN |
| 1930-02-25 | Robert Goldstein | debut | Beethoven Hall, San Antonio | LOST Technical knockout |
| 1930-02-11 | Martin Manes | debut | Beethoven Hall, San Antonio | DRAW |
| 1930-01-28 | Mickey Macias | debut | Beethoven Hall, San Antonio | WIN |
| 1929-10-16 | Frankie Limon | L | Continental Club, San Antonio | NC |
