4 rounds

Ryo
Naritsuka
VS
Hiroya
Yamamoto

Yamamoto · UD 4

Updated Oct 14, 2026 · Sources: Japan Boxing Commission — 試合報告書

Sep 30, 2011 · Korakuen Hall, 🇯🇵

Naritsuka going in—

Yamamoto going in—

Confirmationofficial ★

MethodUD

Roundscheduled 4

Event

DateSep 30, 2011

VenueKorakuen Hall

Country🇯🇵 Japan

Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2011093001

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