Rocky Marciano vs. Joe Louis
1951-10-26 : Joe Louis 213¾ lbs lost to Rocky Marciano 184 lbs by TKO in round 8 of 10
- Location: Madison Square Garden, New York, New York, USA
- Referee: Ruby Goldstein 2-4
- Judge: Joe Agnello 2-5
- Judge: Harold Barnes 3-4
Louis was knocked down twice in the eighth round. Marciano dropped Louis for an eight-count with a left hook and then sent him through the ropes with a right for the knockout.