8 rounds

Alfonso
Leonel Olvera-Vizcarra
VS
Juan
Guillermo Heraldez

Heraldez · UD 8

Apr 29, 2017 · Sam’s Town Hotel & Gambling Hall, Las Vegas, 🇺🇸

Olvera-Vizcarra going in—

Heraldez going in—

Confirmationofficial ★

MethodUD

Roundscheduled 8

Event

DateApr 29, 2017

VenueSam’s Town Hotel & Gambling Hall

CityLas Vegas

Country🇺🇸 United States

PromoterMayweather Promotions, TGB, Sampson Boxing

Nevada State Athletic Commission — Results
side neutral · observed 2026-10-12
boxing.nv.gov/uploadedFiles/boxingnvgov/content/results/2...

✓