Guillermo Serment
UFC DebutNickname“Wilson”
Record
Streak
L1
- Fighting out of
- Chicago, Illinois
- Born
- United States
- Weight class
- Featherweight
- Height
- 5'8" · 173 cm
Before the UFC
Guillermo Serment 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
ModerateOpponents' combined record
119-98-1
.548 win rate
Winning-record opponents
9 of 12
carried winning pro records
Pro bouts faced
16
12 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 16 bouts · 15 promotions · wins by 2 sub · 3 decCombat · Maxx FC 26 · United Combat League · MFL 33 · ROC 44 +10
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| L | KO/TKO | — | R1 | 0:23 | Maxx FC 26 | Oct 17, 2015 | |
| W | Terry House Jr.9-19 | Submission | Arm-Triangle Choke | R2 | 4:36 | United Combat League | Sep 19, 2015 |
| L | Decision | Split | R3 | 5:00 | MFL 33 | Feb 8, 2014 | |
| L | Submission | Rear-Naked Choke | R2 | 2:20 | ROC 44 | Apr 5, 2013 | |
| L | Adam Ward18-13 | Decision | Unanimous | R3 | 5:00 | Flawless FC 2 | Dec 15, 2012 |
| L | Submission | Brabo Choke | R2 | 1:02 | XFO 45 | Aug 18, 2012 | |
| W | Submission | Guillotine Choke | R1 | 1:05 | ROC 41 | Jun 15, 2012 | |
| W | Brian Daye | Decision | Unanimous | R3 | 5:00 | Maxx FC 14 | Feb 18, 2012 |
| W | Vince Ramos | Decision | Unanimous | R3 | 5:00 | XFO 42 | Dec 10, 2011 |
| L | Will Brooks26-5-1 | Submission | Rear-Naked Choke | R2 | 0:45 | CCC | Mar 5, 2011 |
| L | Chris Garcia3-1 | Submission | Rear-Naked Choke | R1 | 2:45 | Ruckus Entertainment | Sep 11, 2010 |
| W | Bobby Reardanz9-13 | Decision | Split | R3 | 3:00 | TFC 18 | Nov 20, 2009 |
| L | Andres Oliveira | Decision | Split | R3 | 5:00 | Fite Nite | Jun 13, 2009 |
| L | Martin Jimenez | Submission | Rear-Naked Choke | R1 | 1:04 | C3 | May 9, 2009 |
| L | Alex Carter6-29 | Decision | Unanimous | R3 | 5:00 | Combat | Feb 25, 2006 |
| L | Ryan Mackin5-2 | Decision | — | R2 | 5:00 | Combat | Aug 13, 2005 |
Non-UFC bouts (regional/other promotions) and Dana White’s Contender Series — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.
Amateur
2-0across 2 amateur bouts · 1 promotionXFO
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| W | Michael Tucker | KO/TKO | Punches | R1 | 0:16 | XFO | Dec 1, 2007 |
| W | Austin Helmick | KO/TKO | Punches | R1 | 1:29 | XFO | Oct 19, 2007 |
Amateur (pre-professional) bouts — shown for context only and excluded from the professional record and every UFC-scoped metric.