10 rounds

Hong
Soo Yang
VS
Kim
Sung-jun

Yang · PTS 10/10

Jun 27, 1981 · Gudeok Gymnasium, Busan, 🇰🇷

Yang going in—

Sung-jun going in27-12-6

Confirmation✓ one source

MethodPTS

Round10 of 10

Sources

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

✓