8 rounds

Ryō
Nakai
VS
Kai
Watanabe

Watanabe · TKO 2/8

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

Dec 31, 2022 · Ota Ward General Gymnasium, 🇯🇵

Nakai going in4-1-1

Watanabe going in8-0-1

Confirmationofficial ★

MethodTKO

Round2 of 8 · 1:54

Event

DateDec 31, 2022

VenueOta Ward General Gymnasium

Country🇯🇵 Japan

Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/渡邊海

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Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2022123101

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