10 rounds

Demetrio
Alferez
VS
Kim
Sung-jun

Sung-jun · KO 7/10

Nov 4, 1977 · Munhwa Gymnasium, Seoul, 🇰🇷

Alferez going in—

Sung-jun going in14-5-3

Confirmation✓ one source

MethodKO

Round7 of 10

Sources

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

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