Heavyweight MMA
Jake O'Brien vs Jon Jones
A fight that actually happened — and everything both records say about it.
Meetings on record
1
Jake O'Brien and Jon Jones met once (2009). Jon Jones won in 2009 by submission.
SOURCE·Jake O'Brien (fighter) and Jon Jones — English Wikipedia (CC BY-SA 4.0)·both records name the other·REVIEWED AUG 2026
How this head-to-head is established
- This pairing exists only because at least one of the two articles' own results tables names the other fighter. No matchup on this site is speculative and none is a hypothetical.
- Every figure in the comparison below comes from that fighter's own page and carries the same source line. A dash means the source states nothing, not that the value is zero.
- Common opponents are found by matching linked bout lists, which is only possible because every fight list here is linked to every other. A shared opponent is not a transitive result and this page does not treat it as one.
- Nothing on this page predicts an outcome. It is a comparison of what is on record.
Side by side
| Jake O'Brien | Jon Jones | |
|---|---|---|
| — | Reach | — |
| 75″ (190.5 cm) | Height | — |
| — | Reach advantage | — |
| 15–4 | Record | 28–0 |
| 67% | Finish rate | 64% |
| 10 | Longest unbeaten run | 23 |
| 19 | Recorded bouts | 35 |
| — | Stance | Orthodox |
A comparison of what is on record. Nothing here predicts a result.
Both records, drawn
The same ledger line on each: wins stamped above the rule, losses below, the mark's shape carrying how it ended.
Jake O'Brien
Jon Jones
Cross-references
Where this pairing leads
Jake O'Brien
The full ledger: 19 bouts, the reach placed in its cohort, and what the record does not say.
15–4 Jon JonesThe same, from the other corner — 35 bouts and the cohort Jones is ranked inside.
28–0 Every confirmed matchupThe other 899 pairings whose own records confirm the fight happened — not a list of fights anyone imagined.
900 BOUTS