WBC super lightweight title · 12 rounds

Saoul
Mamby
VS
Billy
Costello

Costello · UD 12/12

Nov 3, 1984 · Midtown Neighborhood Center, Kingston, 🇺🇸

Mamby going in2-5-0

Costello going in28-0-0

Confirmation✓ one source

MethodUD

Round12 of 12

TitleWBC super lightweight title

Sources

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

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