Welterweight · Puerto Rico

Leonardo Mas

Leonardo Mas was a welterweight boxer from Puerto Rico, born Feb 26, 1972. Leonardo Mas last fought Kostya Tszyu on Jan 18, 1997 and the bout was ruled a no contest.

Also: Леонардо Мас · Мас, Леонардо
BornFeb 26, 1972
Country🇵🇷 Puerto Rico, 🇺🇸 United States
DebutJan 18, 1997
Career1997
Rounds boxed1
Born inPuerto Rico
Boxerbook ratingnot rated yetHow it works ›
Confirmed bouts0 of 1

Career record

Record
No record compiled yet

Last result

NC
Kostya Tszyu 🇦🇺
IBF light-welterweight title at stake
TD 1/12 · Thomas & Mack Center, Paradise, 🇺🇸
1997-01-18 ›
✓ one source

The record

Known bouts: 1, 1997

Record not yet compiled — only bouts reported from opponents' records are shown

Bouts by source: English Wikipedia · 1, Wikipedia (ru) · 1

NC
Kostya Tszyu 🇦🇺
IBF light-welterweight title at stake
TD 1/12 · Thomas & Mack Center, Paradise, 🇺🇸
Mas — · Tszyu 18-0-0
1997-01-18 ›
✓ one source

Ratings now

Not in any current ranking.

World titles

No world title reigns recorded.

Facts

Who did Leonardo Mas fight last?
Leonardo Mas last fought Kostya Tszyu on Jan 18, 1997 and the bout was ruled a no contest.

Sources

Boxerbook ID 15830 · permanent link boxerbook.com/id/15830. Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.

Wikidata ↗