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Jake O'Brien
Jacob Allen O'Brien is a retired American professional mixed martial artist who most recently competed in the Heavyweight division. A professional com...
UFC 100: Lesnar vs. Mir 2 poster
UFC 100: Lesnar vs. Mir 2
2009
5.5
UFC 94: St-Pierre vs. Penn 2 poster
UFC 94: St-Pierre vs. Penn 2
2009
5.7
UFC Fight Night 14: Silva vs. Irvin poster
UFC Fight Night 14: Silva vs. Irvin
2008
0.0
UFC 82: Pride of a Champion poster
UFC 82: Pride of a Champion
2008
6.5
UFC Fight Night 8: Evans vs. Salmon poster
UFC Fight Night 8: Evans vs. Salmon
2007
0.0
UFC 65: Bad Intentions poster
UFC 65: Bad Intentions
2006
6.9
UFC Fight Night 6: Sanchez vs. Parisyan poster
UFC Fight Night 6: Sanchez vs. Parisyan
2006
0.0
WEC 19: Undisputed poster
WEC 19: Undisputed
2006
0.0