8 rounds

Tsubasa
Shiono
VS
Masayuki
Koguchi

Koguchi · UD 8

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

Sep 5, 2006 · Korakuen Hall, 🇯🇵

Shiono going in—

Koguchi going in0-0-0

Confirmationofficial ★

MethodUD

Roundscheduled 8

Event

DateSep 5, 2006

VenueKorakuen Hall

Country🇯🇵 Japan

Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2006090501

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