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“Irish”

JakeO'Brien

LIGHT HEAVYWEIGHT205 LB
LATEST UFC RESULT · 11 Jul 2009
Lvs Jon Jones
UFC 100Submission · Guillotine Choke Standing
VIEW FIGHT →
BACK TO FIGHTER DATABASE →OPEN UFCSTATS ↗
RECORDED PROFESSIONAL RECORD15–4LEDGER THROUGH 4 Aug 2012NON-UFC SOURCE CHECKED 15 Aug 2026
UFC RECORD4–3
LATEST UFC STREAK1LOSSLOSS RUN AT LATEST UFC BOUT
UFC EXPERIENCE7RECORDED FIGHTS

Jake O'Brien has a recorded professional MMA record of 15–4 (ledger through 4 aug 2012) and a calculated UFC record of 4–3 across 7 completed UFC fights. Their latest UFC result was a loss against Jon Jones at UFC 100. Their professional wins include 7 by knockout or TKO, 3 by submission and 5 by decision. At their latest recorded UFC bout on 11 Jul 2009, their UFC loss streak stood at 1 fights. View the complete fight history.

AGE
42
HEIGHT
190.5 CM
REACH
193 CM
STANCE
Orthodox
UFC DEBUT
17 Aug 2006
NATIONALITY
United States
RECORDED UFC FIGHT TOTALS

FIGHTER DNA

7 of 7 fights include the full core stat set · every graphic shows its own sample

VISUAL UFC PROFILE

RECORDED CAREER BALANCE

CORE7/7
STRIKING7/7
TAKEDOWNS7/7
CONTROL7/7
HEAD-TO-HEAD TOTALS

FIGHT BALANCE

SIGNIFICANT STRIKES
92LANDED
−43DIFFERENCE
135ABSORBED

1.32 LANDED/MIN · 1.93 ABSORBED/MIN · RATES 7/7 FIGHTS

TAKEDOWNS
30LANDED
+27DIFFERENCE
3CONCEDED

6.4 TAKEDOWNS / 15 MIN · RATES 7/7 FIGHTS

RECORDED CONTROL
35:02FIGHTER
5:39OPPONENTS

86.1% OF COMBINED RECORDED CONTROL · 7/7 FIGHTS

ATTEMPT-BASED PERCENTAGES

EFFICIENCY

32%STR ACC
VALID TOTALS 7/7
69%STR DEF
VALID TOTALS 7/7
57%TD ACC
VALID TOTALS 7/7
25%TD DEF
VALID TOTALS 7/7

Rings show literal recorded percentages—not ratings or rankings

RECORDED UFC FIGHT ENDINGS · DECISIONS SEPARATE

UFC FIGHTS BY END ROUND

7BOUTS MAPPED
UFC ROUND OR DECISION 7/7 FIGHTS9:59AVG RECORDED FIGHT TIME · 7/7 TIMED
TRACKED PROFESSIONAL CAREER

CAREER OUTCOMES

15–4

15 WINS4 LOSSES

METHOD COVERAGE 15/15 WINS

CAREER WIN ROUTES

15WINS
KO / TKO7WINS · 47%
SUBMISSION3WINS · 20%
DECISION5WINS · 33%

10 KO/SUB WINS · 67% OF CAREER WINS

METHOD COVERAGE 4/4 LOSSES

CAREER LOSS ROUTES

4LOSSES
KO / TKO2LOSSES · 50%
SUBMISSION2LOSSES · 50%
DECISION0LOSSES · 0%
MOST RECENT RESOLVED RESULTS

FORM

  1. W
  2. L
  3. L
  4. W
  5. LLATEST UFC
RUN AT LATEST UFC BOUT1 LOSSUFC LOSS STREAK AT THAT BOUT

NO UFC TITLE FIGHTS RECORDEDAVG FIGHT TIME 9:59 · 7/7 TIMED

ALL RECORDED UFC RESULTS · OLDEST TO NEWEST

UFC CAREER MAP

7FIGHTS
UFC DEBUT17 Aug 2006LATEST UFC FIGHT11 Jul 2009
RECONCILED CAREER LEDGER

PROFESSIONAL MMA FIGHT HISTORY

19 recorded professional fights

W
4 Aug 2012 · Flawless Fighting Championshipvs Miodrag PetkovicFlawless FC 1 - The Beginning
DecisionDecisionUnanimousUnanimousR3 · 5:00R3 · 5:00
Flawless FC 1 - The BeginningEXTERNAL CAREER RESULT
EXTERNAL
W
31 Mar 2012 · Indy MMAvs James ShawIMMA - Indy MMA 2
SubmissionSubmissionArm-Triangle ChokeArm-Triangle ChokeR1 · 1:06R1 · 1:06
IMMA - Indy MMA 2EXTERNAL CAREER RESULT
EXTERNAL
L
10 Jul 2010 · Dreamvs Gegard MousasiDream - Dream 15
SubmissionSubmissionGuillotine ChokeGuillotine ChokeR1 · 0:31R1 · 0:31
Dream - Dream 15EXTERNAL CAREER RESULT
EXTERNAL
W
13 Mar 2010 · Fight Festivalvs Toni ValtonenFF 27 - Fight Festival 27
DecisionDecisionUnanimousUnanimousR3 · 5:00R3 · 5:00
FF 27 - Fight Festival 27EXTERNAL CAREER RESULT
EXTERNAL
W
20 Feb 2010 · MMA Big Showvs Dave HessMMA Big Show - Triple Threat
SubmissionSubmissionKimuraKimuraR2 · 4:24R2 · 4:24
MMA Big Show - Triple ThreatEXTERNAL CAREER RESULT
EXTERNAL
SHOW COMPLETE HISTORY · 7 MORESHOW RECENT FIGHTS
W
23 Jun 2006 · United Fight Leaguevs Patrick HarmanUFL 1 - United Fight League 1
Technical SubmissionTechnical SubmissionRear-Naked ChokeRear-Naked ChokeR1 · 3:46R1 · 3:46
UFL 1 - United Fight League 1EXTERNAL CAREER RESULT
EXTERNAL
W
7 Apr 2006 · Legends of Fighting Championshipvs Antoine HayesLOF 6 - Legends of Fighting 6
TKOTKOPunchesPunchesR1R1
LOF 6 - Legends of Fighting 6EXTERNAL CAREER RESULT
EXTERNAL
W
17 Mar 2006 · World Extreme Cagefightingvs Jay WhiteWEC 19 - Undisputed
KOKOPunchPunchR1 · 0:14R1 · 0:14
WEC 19 - UndisputedEXTERNAL CAREER RESULT
EXTERNAL
W
20 Jan 2006 · Legends of Fighting Championshipvs Johnathan IveyLOF 4 - Legends of Fighting 4
TKOTKOPunchesPunchesR1R1
LOF 4 - Legends of Fighting 4EXTERNAL CAREER RESULT
EXTERNAL
W
7 Jan 2006 · Legends of Fighting Championshipvs Anthony FergusonLOF - Revolution 1
TKOTKOPunchesPunchesR1R1
LOF - Revolution 1EXTERNAL CAREER RESULT
EXTERNAL
W
21 Jun 2005 · Integrated Fighting Classicvs Paul BowersIFC 3 - Integrated Fighting Classic 3
TKOTKOPunchesPunchesR1R1
IFC 3 - Integrated Fighting Classic 3EXTERNAL CAREER RESULT
EXTERNAL
W
21 May 2005 · Madtown Throwdownvs Chris ClarkMT 3 - Madtown Throwdown 3
TKOTKOPunchesPunchesR1R1
MT 3 - Madtown Throwdown 3EXTERNAL CAREER RESULT
EXTERNAL

RECORD SCOPE This recorded professional snapshot includes identity-reconciled MMA results across promotions through 4 Aug 2012. It is not a live claim about unverified later fights. The latest UFC bout was on 11 Jul 2009; 5 later non-UFC bouts are included here. Non-UFC source last checked 15 Aug 2026: Fight Forensics fighter record. Professional MMA only; amateur and exhibition bouts, boxing, kickboxing, grappling and bare-knuckle boxing are excluded.