| Gender | Male |
|---|---|
| Height | 0' 0" |
| Weight Class |
Sean O'Brien is a MMA fighter with a professional fight record of 0 wins, 1 losses and 0 draws
| Pro Record | 0-1-0 (Win-Loss-Draw) |
|---|---|
| Career Length | - |
| Rounds Fought | 0.1 |
| Avg. Fights/Year | 1.0 |
| Longest Layoff | - |
| Quickest Turnaround | - |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| NSF | 12/12/2009 | L (0-0-0) | Jai Bradney (4-1-1) | KO (Strike) Cage Wars Australia 3 | 1 | 00:43 |
| * Bouts marked with an 'Official' logo denote results which have been verified by an ABC-recognized athletic commission * Bouts marked with an (*) are considered exhibition bouts and do not count towards the fighter's record * Weights marked with an (*) denote those over the limit for the weight class |
| Amateur Record: | 0-4-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 8 years, 9 months, 2 days |
| Rounds Fought | 5.3 |
| Avg. Fights/Year | 0.5 |
| Longest Layoff | 8 years, 3 months, 17 days |
| Quickest Turnaround | 2 months, 3 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| | 04/12/2008 | L (0-3-0) | James Kasyjanski (0-0-0) | HW (243.0 vs. 238.0) | Submission (Arm Bar) Proving Grounds | 1 | 00:54 | |
| | 02/09/2008 | L (0-2-0) | Alan Wright (1-0-0) | HW (250.0 vs. 243.6) | Submission (Rear Naked Choke) New Breed Fighters 2/9/08 | 1 | 01:01 | |
| NSF | 10/23/1999 | L (0-1-0) | Chris Young (0-1-0) | Decision Rhode Island Vale Tudo 2 | 1 | 07:00 | ||
| NSF | 07/10/1999 | L (0-0-0) | Frank Colcher (1-0-0) | Decision (Unanimous Decision) Rhode Island Vale Tudo 1 | 1 | 07:00 |
| * Bouts marked with an 'Official' logo denote results which have been verified by an ABC-recognized athletic commission * Bouts marked with an (*) are considered exhibition bouts and do not count towards the fighter's record * Weights marked with an (*) denote those over the limit for the weight class |