Jake O'Brien "Irish"
Jake O'Brien, known as "Irish", is a mixed martial artist from the United States listed in the Heavyweight division. Jake O'Brien holds a professional record of 15-4-0, including 4-3-0 inside the UFC. Of those UFC wins, 1 came by knockout or TKO, 0 by submission and 3 by decision. Jake O'Brien stands 6'3", has a 76-inch reach, fights out of a orthodox stance, and is 42 years old. Jake O'Brien is currently on a 2-fight winning streak and is listed as Inactive.
Jake O'Brien profile
| Division | Heavyweight |
|---|---|
| Professional record | 15-4-0 |
| UFC record | 4-3-0 |
| Division rank | Unranked |
| Status | Inactive |
| Country | United States |
| Age | 42 |
| Date of birth | 1984-09-25 |
| Height | 6'3" |
| Reach | 76" |
| Stance | Orthodox |
| Last weigh-in | 211 lbs |
| Current streak | W2 |
| Total octagon time | 1h 10m |
Striking statistics
| Significant strikes landed per minute | 1.32 |
|---|---|
| Significant strikes absorbed per minute | 1.93 |
| Striking accuracy | 31.8% |
| Striking defense | 69.2% |
| Knockdowns per 15 minutes | 0.21 |
| Strikes to the head | 96.7% |
| Strikes to the body | 3.3% |
| Strikes to the legs | 0% |
Grappling statistics
| Takedowns per 15 minutes | 6.44 |
|---|---|
| Takedown defense | 25% |
| Submission attempts per 15 minutes | 0.21 |
| Average control time per fight (seconds) | 300.29 |
UFC finish breakdown
| UFC wins by KO/TKO | 1 |
|---|---|
| UFC wins by submission | 0 |
| UFC wins by decision | 3 |
Jake O'Brien recorded fight history
Recorded bouts across promotions. This list can be incomplete and is not a substitute for the published full career record.
| Date | Promotion | Event | Opponent | Result | Method |
|---|---|---|---|---|---|
| 2012-08-04 | FFC | Flawless FC 1 | Miodrag Petkovic | win | Decision · Unanimous |
| 2012-03-31 | IMMA | INDY MMA 2 | James Shaw | win | Arm Triangle Choke · 1:06 · R1 |
| 2010-07-10 | DREAM | Dream 15 | Gegard Mousasi | loss | Guillotine Choke · 0:31 · R1 |
| 2010-03-13 | FF | Toni Valtonen | win | DEC | |
| 2010-02-20 | MBS | MMA Big Show | Dave Hess | win | Kimura · 4:24 · R2 |
| 2009-07-11 | UFC | UFC 100 | Jon Jones | loss | Guillotine Choke Standing |
| 2009-01-31 | UFC | UFC 94: St-Pierre vs Penn 2 | Christian Wellisch | win | Decision · Split |
| 2008-07-19 | UFC | UFC: Silva vs Irvin | Cain Velasquez | loss | Punches to Head From Side Control |
| 2008-03-01 | UFC | UFC 82: Pride of a Champion | Andrei Arlovski | loss | Punches to Head From Mount |
| 2007-01-25 | UFC | UFC Fight Night: Evans vs Salmon | Heath Herring | win | Decision · Unanimous |
| 2006-11-18 | UFC | UFC 65: Bad Intentions | Josh Schockman | win | Decision · Unanimous |
| 2006-08-17 | UFC | UFC Fight Night 6 | Kristof Midoux | win | Punches to Head On Ground |
| 2006-06-23 | Unknown | Pat Harman | win | TKO | |
| 2006-04-07 | LOF | Antoine Hayes | win | TKO | |
| 2006-03-17 | WEC | WEC 19: Undisputed | Jay White | win | Punch · 0:14 · R1 |
| 2006-01-20 | LOF | Johnathan Ivey | win | TKO | |
| 2006-01-07 | LOF | Anthony Ferguson | win | TKO | |
| 2005-06-21 | Unknown | Paul Bowers | win | TKO | |
| 2005-05-21 | MTTD | Chris Clark | win | TKO |
More heavyweight fighters
Jake O'Brien is listed in the Heavyweight database division.
UFC medical and compliance records
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Sources and methodology
Career records and bout history are compiled from published MMA records. UFC performance metrics use published bout statistics; percentiles and derived metrics are calculated by Verdikt AI. Data can change after official corrections.
How to compare records and statistics · Read the methodology or report a correction.
