Inaugural WBO lightweight title · 12 rounds

Amancio
Castro
VS
Mauricio
Aceves

Aceves · UD 12/12

May 6, 1989 · Santa Ana Stadium, Santa Ana, 🇺🇸

Castro going in—

Aceves going in24-7-1

Confirmation✓ one source

MethodUD

Round12 of 12

TitleInaugural WBO lightweight title

Sources

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

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