NBA and The Ring flyweight titles · 15 rounds

Dado
Marino
VS
Yoshio
Shirai

Shirai · UD 15/15

May 19, 1952 · Korakuen Baseball Stadium, Korakuen Baseball Stadium, 🇯🇵

Marino going in57-13-3

Shirai going in37-5-3

Confirmation✓✓ two sources

MethodUD

Round15 of 15

TitleNBA and The Ring flyweight titles

Sources

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

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English Wikipedia
side a · observed 2026-10-11
en.wikipedia.org/wiki/Dado_Marino

✓

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

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