4 rounds

Mutsuo
Watanabe
VS
Kōji
Kobayashi

Kobayashi · PTS 4/4

Sep 21, 1979 · Korakuen Hall, Tokyo, 🇯🇵

Watanabe going in—

Kobayashi going in4-0-2

Confirmation✓ one source

MethodPTS

Round4 of 4

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Kōji_Kobayashi_(boxer)

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Wikipedia (ja)
side b · observed 2026-10-12
ja.wikipedia.org/wiki/小林光二

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