10 rounds

Juan
Carlos Alvarado
VS
Jeff
Mayweather

Mayweather · UD 10/10

Sep 13, 1991 · Union Plaza Hotel and Casino, Las Vegas, 🇺🇸

Alvarado going in—

Mayweather going in18-1-1

Confirmation✓ one source

MethodUD

Round10 of 10

Sources

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

✓