| Gender | Male |
|---|---|
| Height | 0' 0" |
| Weight Class | |
| Out of | Ireland |
Jonny O'Brien is a MMA fighter with a amateur fight record of 2 wins, 1 losses and 0 draws
| Amateur Record: | 2-1-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 11 months, 23 days |
| Rounds Fought | 5.7 |
| Avg. Fights/Year | 3.3 |
| Longest Layoff | 9 months, 14 days |
| Quickest Turnaround | 2 months, 9 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| NSF | 09/11/2010 | W (1-1-0) | Warren Mitchell (0-0-0) | Unknown Immortal Fighting Championship 3 | 3 | 03:00 | ||
| NSF | 11/28/2009 | L (1-0-0) | Milan Kovach (1-0-0) | WW | Submission (Guillotine Choke) Ultimate Conflict 5 (Ireland) | 1 | 05:00 | |
| NSF | 09/19/2009 | W (0-0-0) | Darrach Mellon (0-0-0) | Submission (Kimura) Immortal Fighting Championship 1 | 2 | 00:00 |
| * 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 |