NYSAC, NBA, and The Ring heavyweight titles · 15 rounds

Don
Cockell
VS
Rocky
Marciano

Marciano · TKO 9/15

May 16, 1955 · Kezar Stadium, San Francisco, California, 🇺🇸

Cockell going in65-11-1

Marciano going in47-0-0

Confirmation✓✓ two sources

MethodTKO

Round9 of 15 · 0:54

TitleNYSAC, NBA, and The Ring heavyweight titles

Sources

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

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English Wikipedia
side a · observed 2026-10-11
en.wikipedia.org/wiki/Don_Cockell

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