Ryōsuke Iwasa vs Kentarō Masuda · Bout 8178

Retained Japanese bantamweight title · 10 rounds

Iwasa · TKO 7/10

Jul 7, 2012 · Korakuen Hall, Tokyo, 🇯🇵

Iwasa going in11-1-0

Masuda going in0-0-0

Confirmation✓ one source

MethodTKO

Round7 of 10 · 1:49

TitleRetained Japanese bantamweight title

Sources

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

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Wikipedia (ja)
side a · observed 2026-10-12
ja.wikipedia.org/wiki/岩佐亮佑

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