Japan flyweight title · 10 rounds

Yōichirō
Hanada
VS
Yoshio
Shirai

Shirai · KO 5/10

Jan 28, 1949 · Japan

Hanada going in1-1-0

Shirai going in18-3-3

Confirmation✓ one source

MethodKO

Round5 of 10

TitleJapan flyweight title

Sources

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

✓

Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/白井義男

✓