Olaf Alfonso
UFC Debut
Record
Streak
L2
Age
Date of birth
- Fighting out of
- Enseneda
- Born
- Mexico
- Weight class
- Welterweight
- Height
- 5'10" · 178 cm
Before the UFC
Olaf Alfonso 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.
UFC debut
Aug 20, 2026
Pre-UFC opposition
StrongOpponents' combined record
247-144-6
.632 win rate
Winning-record opponents
13 of 19
carried winning pro records
Pro bouts faced
20
19 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 20 bouts · 10 promotions · wins by 5 KO · 2 sub · 1 decWEC · TPF 19 · PFC 13 · PFC 12 · PFC 10 +5
| Res | Opponent | Outcome | Finish | Rd | Time | Promotion | Date |
|---|---|---|---|---|---|---|---|
| L | Adrian Diaz11-7-1 | KO/TKO | Punches | R3 | 2:35 | TPF 19 | Jun 19, 2014 |
| L | Kyle Pimental7-0 | KO/TKO | Doctor Stoppage | R3 | 2:48 | PFC 13 | May 8, 2009 |
| W | Jeremiah Metcalf13-7 | Submission | Armbar | R1 | 1:38 | PFC 12 | Jan 22, 2009 |
| L | Phil Baroni16-19 | Decision | Unanimous | R3 | 3:00 | PFC 10 | Sep 26, 2008 |
| W | Chris Solomon2-6 | KO/TKO | Punch | R1 | 0:28 | PFC 8 | May 8, 2008 |
| W | Casey Olson14-4 | KO/TKO | Punch | R2 | 1:50 | PFC | Feb 29, 2008 |
| L | Thomas Denny27-21-1 | Decision | Unanimous | R3 | 3:00 | PFC 4 | Oct 18, 2007 |
| L | Alex Karalexis10-6 | KO/TKO | Doctor Stoppage | R2 | 3:53 | WEC | Jan 20, 2007 |
| L | Decision | Split | R3 | 5:00 | WEC | Oct 12, 2006 | |
| L | Hayato Sakurai38-13-2 | KO/TKO | Punch | R1 | 1:14 | PRIDE | Jun 4, 2006 |
| L | Rob McCullough19-8 | KO/TKO | Punch | R2 | 0:12 | WEC | Mar 17, 2006 |
| L | KO/TKO | Corner Stoppage | R1 | 5:00 | WEC | Mar 17, 2005 | |
| W | Chin Seng0-1 | KO/TKO | Punch | R1 | 1:13 | WEC | Jan 22, 2005 |
| L | Gabe Ruediger18-8 | Submission | Rear-Naked Choke | R1 | 3:05 | WEC | Oct 21, 2004 |
| W | Phillip Perez7-5-1 | KO/TKO | Elbows | R1 | 2:57 | WEC | Aug 20, 2004 |
| L | Gilbert Melendez22-8 | KO/TKO | Punches | R3 | 4:54 | WEC | May 21, 2004 |
| W | Decision | Split | R3 | 5:00 | WEC | Jan 16, 2004 | |
| W | Randy Bowers | Submission | Armbar | R1 | 3:05 | WEC | Oct 17, 2003 |
| W | Randy Spence12-11 | KO/TKO | Punches | R2 | 4:34 | WEC | Aug 9, 2003 |
| L | Ryan Healy25-14-1 | KO/TKO | Corner Stoppage | R1 | — | DB 5 | Aug 17, 2002 |
Non-UFC bouts (regional/other promotions) — shown for context only, excluded from Schedule Score, striking/grappling rates, and every UFC-scoped metric.