8 rounds

Jose
Luis Calderon
VS
Jeff
Mayweather

Mayweather · TKO 6/8

Jun 2, 1991 · Union Plaza Hotel and Casino, Las Vegas, 🇺🇸

Calderon going in—

Mayweather going in15-1-1

Confirmation✓ one source

MethodTKO

Round6 of 8 · 1:28

Sources

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

✓