8 rounds

Koshinmaru
Saito
VS
Hironobu
Matsunaga

Matsunaga · KO 4/8

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

Oct 12, 2018 · Korakuen Hall, 🇯🇵

Saito going in—

Matsunaga going in13-1-0

Confirmationofficial ★

MethodKO

Round4 of 8 · 2:54

Notes2018年度日本スーパーウェルター級最強挑戦者決定戦

Event

DateOct 12, 2018

VenueKorakuen Hall

Country🇯🇵 Japan

Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/松永宏信

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Japan Boxing Commission — 試合報告書
side neutral · observed 2026-10-14
jbc.or.jp/result/#no=2018101201

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