The most home runs hit in a World Series is five. This was done by two players.
Chase Utley, and Reggie Jackson have the most home runs in a single World Series with 5. Utley hit 5 home runs in the 2009 World Series, and Jackson hit 5 home Runs in the 1977 World Series.
Reggie Jackson holds the record for most home runs in a World Series with 5 hit in the 1977 World Series.
Both Reggie Jackson and Chase Utley hit five home runs in a single World Series. Jackson did it in 1977 with the New York Yankees, while Utley accomplished the feat in the 2009 Series.
The most home runs by an individual in a World Series during the 1970s was 5 by Reggie Jackson of the New York Yankees during the 1977 World Series. That same series Jackson also hit the most home runs in a single world series game during the 1970s with 3.
Since the Athletics moved to Oakland, they have played in 6 World Series (1972, 1973, 1974, 1988, 1989, 1990). The only Athletics player to have hit three or more home runs in any of those six World Series was catcher Gene Tenace who hit 4 in the 1972 World Series against the Cincinnati Reds.
Only four players have had three-homer games in World Series competition -- Babe Ruth (who did it twice), Reggie Jackson, Albert Pujols and Pablo Sandoval.
Reggie Jackson hit three home runs in Game 6 of the 1977 World Series. He also hit five overall homers in that Series.
There has not been a single world series that has NOT had a home run. And, two World Series have ended with a walk off home run, 1960 (Pirates beat Yankees in Game 7) and 1993 (Blue Jays beat Pirates).
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Mickey Mantle holds the record for most home runs hit in the World Series with 18.
Mickey Mantle of the New York Yankees hit 18 World Series home runs during his career.
That was Matt Williams who hit a home run with the Arizona Diamondbacks in the 2001 World Series and with the Cleveland Indians in the 1997 World Series.