10 rounds

Julio
Guerrero
VS
Rubén
Olivares

Olivares · KO 4/10

Updated Oct 11, 2026 · Sources: English Wikipedia

Jun 17, 1967 · Mexico City, 🇲🇽

Guerrero going in—

Olivares going in25-0-0

Confirmation✓ one source

MethodKO

Round4 of 10

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Rubén_Olivares

✓