Teddy O'Brien boxer
- bouts
- 12
- won
- 3
- lost
- 5
- draw
- 4
- Status
- inactive
- Division
- welterweight
- Debut
- 1925-09-10
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1927-09-16 | Dominick Mastriano | WWWWLW | Fair Grounds, Altamont | LOST Points |
| 1927-09-08 | Dominick Mastriano | WWWWWL | Bonacker's Stadium, Rensselaer | LOST Points |
| 1927-06-20 | Red Riley | WLLLLD | Stadium, Troy | LOST Points |
| 1927-05-19 | Bernard Barde | W | K of C Arena, Glens Falls | DRAW Points |
| 1927-04-29 | Red Riley | WWLLLL | Van Curler Theatre, Schenectady | DRAW Points |
| 1927-04-01 | Patsy Andy | DWWDDW | Van Curler Theatre, Schenectady | LOST Points |
| 1927-03-18 | Ceylon DeLorenz | DDWL | Van Curler Theatre, Schenectady | WIN Points |
| 1927-02-10 | Ceylon DeLorenz | DDW | K of C Arena, Glens Falls | WIN Technical knockout |
| 1926-09-07 | Edgie Ryan | WLDWWD | Stadium, Troy | DRAW Points |
| 1925-12-07 | Harry Lagess | WWWWLD | New Winter Garden, Pittsfield | LOST Technical knockout |
| 1925-10-20 | Young Coogan | WDLDLL | Knickerbocker A.C. Arena, Albany | DRAW Points |
| 1925-09-10 | Marty Mandeville | LWLWLD | Chadwick Park, Albany | WIN Points |