8 rounds

Byron
Stoimenides
VS
Oscar
Bonavena

Bonavena · KO 1/8

May 29, 1964 · Madison Square Garden, New York City

Stoimenides going in—

Bonavena going in4-0-0

Confirmation✓ one source

MethodKO

Round1 of 8

Sources

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

✓