Jake O'Brien
Current ELO: 1011
Peak ELO: 1059
Rank: #801
Peak Rank: #652
Record: 4-3
Weight Classes: Heavyweight, Light Heavyweight
Updated: 5/16/2025
| Event | Fighter 1 | Fighter 1 ELO | Fighter 2 | Fighter 2 ELO | Weight Class | Result | Method |
|---|---|---|---|---|---|---|---|
| UFC 100 | Jon Jones | 1041 →1064(+23) | Jake O'Brien | 1034 →1011(-23) | Light Heavyweight | Loss | SUB |
| UFC 94: St-Pierre vs Penn 2 | Jake O'Brien | 1015 →1034(+19) | Christian Wellisch | 997 →978(-19) | Light Heavyweight | Win | S-DEC |
| UFC: Silva vs Irvin | Cain Velasquez | 1023 →1047(+24) | Jake O'Brien | 1039 →1015(-24) | Heavyweight | Loss | KO |
| UFC 82: Pride of a Champion | Andrei Arlovski | 1104 →1124(+20) | Jake O'Brien | 1059 →1039(-20) | Heavyweight | Loss | KO |
| UFC Fight Night: Evans vs Salmon | Jake O'Brien | 1041 →1059(+18) | Heath Herring | 1000 →982(-18) | Heavyweight | Win | U-DEC |
| UFC 65: Bad Intentions | Jake O'Brien | 1023 →1041(+18) | Josh Shockman | 1000 →981(-19) | Heavyweight | Win | U-DEC |
| UFC Fight Night 6 | Jake O'Brien | 1000 →1023(+23) | Kristof Midoux | 1000 →977(-23) | Heavyweight | Win | KO |