Highest slugging percentage in Major League Baseball
- Who
- Josh Gibson
- Where
- United States
- When
- 1946
The highest slugging percentage for an individual player is .718, achieved by Josh Gibson (USA) while playing in the Negro Leagues for the Memphis Red Sox, Homestead Grays, and Pittsburgh Crawfords from 1930 to 1946.
On 28 May 2024, Major League Baseball announced that it had integrated Negro Leagues statistics into its records, supplanting the previous mark of .690 by George Herman "Babe" Ruth (USA) who played for the Boston Red Sox, New York Yankees, and Boston Braves from 1914 to 1935.
A batter's slugging percentage is calculated by dividing the total number of bases gained by the total number of at-bats.