Last fight · 20 Jun 2026
Win vs Neider Valdez
KO · 2 (12) · WBO International Flyweight
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Puerto Rico · Minimumweight
Oscar Collazo
“El Pupilo”
- 29 years old
- 5′2″
- WBA Champion
- WBO Champion
- Wins
- 15
- Losses
- 0
- Draws
- 0
- KOs
- 12
80% of wins inside the distance
Form
Fights
Before that
- WinJesus Haro14 Mar 2026 · WBA and WBO world titles · MinimumweightRTD · 6 (12)
- WinJayson Vayson20 Sept 2025 · WBA and WBO world titles · MinimumweightKO · 7 (12)
- WinEdwin Cano29 Mar 2025 · WBA and WBO world titles · MinimumweightKO · 5 (12)
- WinThammanoon Niyomtrong16 Nov 2024 · WBA and WBO world titles · MinimumweightTKO · 7 (12)
Show the next 5 fights
- WinGerardo Zapata7 Jun 2024 · WBO world title · MinimumweightUD · 12
- WinReyneris Gutierrez27 Jan 2024 · WBO world title · MinimumweightTKO · 3 (12)
- WinGaren Diagan26 Aug 2023 · WBO world title · MinimumweightRTD · 6 (12)
- WinMelvin Jerusalem27 May 2023 · WBO world title · MinimumweightRTD · 7 (12)
- WinEduardo Yudel Reyes Torres28 Jan 2023 · WBO minimum weight world title eliminator (WBO supervisor: Genaro Rodriguez). Reyes down twice rd 5 count waived - California rules: KO.KO · 5 (12)
5 older fights · BoxRec profile ↗
Rankings
Best: champion
- WBA
C
Champion
tracked since Aug 2026
- WBO
C
Champion
tracked since Aug 2026
Not ranked by the WBC, IBF or IBO.
World titles
2 championship reigns · 2 sanctioning bodies · 1 weight class
Minimumweight
- WBAsince 2024
- WBOsince 2023
From 2023 to 2026.
Reigning
Current titles: the sanctioning bodies' official rankings. History and dates: Wikipedia's lists of world champions (CC BY-SA 4.0), re-read every week.
Movement
Places gained or lost with each sanctioning body. Green is up, red is down, “New” marks an entry into the rankings, and a dot a period with no published archive.
| Body | The boxer's place in the sanctioning body's official ranking. “C”: world champion, above No. 1. An interim champion is marked as such (“Interim”, “Int.”): not the reigning champion. No. 1 is the leading contender for the title. | 1M | 3M | 6M | 1Y |
|---|---|---|---|---|---|
| WBA | C | — | · | · | · |
| WBO | C | — | · | · | · |
Trajectory, body by body
WBA
Championtracked since Aug 2026
WBO
Championtracked since Aug 2026
IBF
No longer ranked · best No. 10 (Jan 2023)tracked since Jul 2022
See the changes in detail
| Aug 2026 | Champion |
| Aug 2026 | Champion |
| Jul 2022 | No. 14 |
| Aug 2022 | No. 12 |
| Sep 2022 | No. 11 |
| Oct 2022 | dropped out of the ranking |
| Dec 2022 | No. 11 |
| Jan 2023 | No. 10 |
| Feb 2023 | dropped out of the ranking |
| Mar 2023 | No. 10 |
| Apr 2023 | dropped out of the ranking |