Rocky Marciano 185 lbs beat Jersey Joe Walcott 198 lbs by KO at 2:25 in round 1 of 15
Date: 19530515
Location: Chicago Stadium, Chicago, Illinois, USA
World Heavyweight Championship (1st defense by Marciano)

Marciano was a 16 to 5 betting favorite.
In a prefight Associated Press poll, 34 of 36 sportswriters picked Marciano to win.
With less than a minute remaining in the first round, Walcott threw a jab and Marciano countered with a left hook and a right uppercut that sent the offbalance Walcott sprawling on his back, his feet flying high above him. The challenger pulled himself up to a sitting position, one hand on the ropes, and appeared unhurt. He then sat there and let the referee count him out. Once the fatal ten was reached, Walcott hoisted himself to his feet and complained that he had received a fast count