10 rounds

Jackal
Maruyama
VS
Kōji
Kobayashi

Draw · UD 10/10

Updated Oct 12, 2026 · Sources: English Wikipedia, Wikipedia (ja)

Sep 3, 1982 · Korakuen Hall, Tokyo, 🇯🇵

Maruyama going in0-3-0

Kobayashi going in17-1-2

Confirmation✓ one source

MethodUD

Round10 of 10

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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