10 rounds

Carlos
Marks
VS
William
Douglas

Douglas · PTS 10/10

May 15, 1972 · Arena, Philadelphia, 🇺🇸

Marks going in—

Douglas going in21-6-1

Confirmation✓ one source

MethodPTS

Round10 of 10

Sources

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

✓