WBA super flyweight title · 12 rounds

Armando
Castro
VS
Katsuya
Onizuka

Onizuka · UD 12/12

Dec 11, 1992 · Ariake Coliseum, Tokyo, 🇯🇵

Castro going in—

Onizuka going in20-0-0

Confirmation✓ one source

MethodUD

Round12 of 12

TitleWBA super flyweight title

Sources

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

✓

Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/鬼塚勝也

✓