4 rounds

Kazuyu
Kobayashi
VS
Naoya
Onuma

Onuma · UD 4

Nov 20, 2006 · Korakuen Hall, 🇯🇵

Kobayashi going in—

Onuma going in—

Confirmationofficial ★

MethodUD

Roundscheduled 4

Event

DateNov 20, 2006

VenueKorakuen Hall

Country🇯🇵 Japan

Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2006112001

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