This Day in Boxing

Rocky Marciano KOs Don Cockell This Day May 16, 1955


Rocky Marciano KOs Don Cockell This Day May 16, 1955

The “Brockton Blockbuster” retains the heavyweight crown




  • 1955-05-16 : Rocky Marciano 189 lbs beat Don Cockell 205 lbs by TKO at 0:54 in round 9 of 15
  • Location: Kezar Stadium, San Francisco, California, USA
  • Referee: Frankie Brown
  • World Heavyweight Championship (5th defense by Marciano)


The fight was shown on closed circuit TV in 83 theaters in 59 cities.

There was a crowd of 18,000 at Kezar Stadium in San Francisco.

The contract called for Marciano to receive 40% of the net gate and Cockell 20%.

Cockell was knocked through the ropes head first at the end of the 8th round. Marciano floored him twice more in the 9th.

In his dressing room after the fight, Cockell said he got a “raw deal.” His manager complained that the referee allowed Marciano to headbutt, hit low and punch after the bell.

In April 1956, the chief investigator for the California Governor’s special committee investigating boxing accused promoter Jimmy Murray of shortchanging both fighters and paying $10,000 “on the side” to Al Weill, Marciano’s manager. Murray and Weill denied the allegations.

Previous ArticleNext Article