WBC light-flyweight title · 12 rounds

Francisco
Montiel
VS
Chang
Jung-koo

Jung-koo · UD 12/12

Sep 13, 1986 · Chungmu Gymnasium, Daejeon, 🇰🇷

Montiel going in—

Jung-koo going in30-1-0

Confirmation✓ one source

MethodUD

Round12 of 12

TitleWBC light-flyweight title

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Chang_Jung-koo

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