Japanese super flyweight title · 10 rounds

Tomohiko
Yokoyama
VS
Katsuya
Onizuka

Onizuka · KO 1/10

Dec 17, 1990 · Korakuen Hall, Tokyo, 🇯🇵

Yokoyama going in—

Onizuka going in14-0-0

Confirmation✓ one source

MethodKO

Round1 of 10

TitleJapanese 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

✓