John O'Brien
UFC Debut
Record
Streak
W2
Age
Date of birth
- Fighting out of
- Missouri
- Born
- United States
- Weight class
- Welterweight
- Height
- 5'11" · 180 cm
Before the UFC
John O'Brien makes their UFC debut
Our striking, grappling, and schedule metrics are measured from UFC fights, so they come online after this bout. Here is the career they bring in — and how live the opposition has been.
Pre-UFC opposition
DevelopmentalOpponents' combined record
12-22-1
.353 win rate
Winning-record opponents
1 of 5
carried winning pro records
Pro bouts faced
6
5 opponents with records on file
A descriptive read of the non-UFC slate from opponents’ full career pro records — not a UFC-grade Schedule Score.
UFC fight history
No UFC bouts on record yet.
Outside the UFC
across 6 bouts · 6 promotions · wins by 2 KO · 1 sub · 2 decFAC 26 · FAC 7 · FAC 5 · FAC 3 · Blue Corner Promotions +1
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| W | Ethan Soderstrom | Decision | Unanimous | R3 | 5:00 | FAC 26 | Oct 12, 2024 |
| W | Johnny Pantoja1-5 | KO/TKO | Punches | R1 | 2:20 | FAC 7 | Mar 5, 2021 |
| L | Caleb Crump8-6-1 | Decision | Unanimous | R3 | 5:00 | FAC 5 | Dec 11, 2020 |
| W | Daniel Jefferson2-3 | Decision | Majority | R3 | 5:00 | FAC 3 | Aug 14, 2020 |
| W | Wayne Collier0-5 | Submission | Rear-Naked Choke | R1 | 0:39 | Blue Corner Promotions | Feb 7, 2020 |
| W | Cory Heinz1-3 | KO/TKO | Punches | R1 | 1:10 | Cageside Promotions / KCFA | Dec 7, 2019 |
Non-UFC bouts (regional/other promotions) — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.
Amateur
5-2across 7 amateur bouts · 2 promotionsCageside Promotions / KCFA · Cageside Promotions
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| W | Joey Hart8-4 | Decision | Unanimous | R3 | 3:00 | Cageside Promotions | Jun 22, 2019 |
| W | Lance Templeton2-1 | Submission | Triangle Choke | R1 | 1:01 | Cageside Promotions / KCFA | May 4, 2019 |
| L | Luis Felipe Mangul5-2 | Decision | Split | R3 | 3:00 | Cageside Promotions / KCFA | Sep 22, 2018 |
| W | Demetrius Heath0-5 | Submission | Rear-Naked Choke | R1 | 2:42 | Cageside Promotions / KCFA | Jul 28, 2018 |
| W | Tyler Berg3-2 | Decision | Unanimous | R3 | 3:00 | Cageside Promotions / KCFA | May 5, 2018 |
| W | Christian Lacey | Submission | Rear-Naked Choke | R1 | 1:01 | Cageside Promotions / KCFA | Sep 30, 2017 |
| L | Trey Glass2-1 | KO/TKO | Punches | R3 | 2:40 | Cageside Promotions / KCFA | Jul 29, 2017 |
Amateur (pre-professional) bouts — shown for context only and excluded from the professional record and every UFC-scoped metric.