Japanese title, 3rd defence · 10 rounds

Seiichi
Okada
VS
Kōji
Umetsu

Okada · MD 10/10

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

Dec 31, 2011 · Yokohama Cultural Gymnasium, 🇯🇵

Okada going in15-1-0

Umetsu going in7-6-3

Confirmationofficial ★

MethodMD

Round10 of 10

TitleJapanese title, 3rd defence

Event

DateDec 31, 2011

VenueYokohama Cultural Gymnasium

Country🇯🇵 Japan

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Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2011123101

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