1930 World Series

In the 1930 World Series, the Philadelphia Athletics defeated the St. Louis Cardinals in six games, 4–2. Philly's pitching ace Lefty Grove, and George Earnshaw, No. 2 man in Mr. Mack's rotation, won two games apiece. Earnshaw also pitched seven scoreless innings as Game 5 starter, but ended up with a no-decision as Grove relieved him in the eighth and took the win on Jimmie Foxx's two-run homer in the top of the ninth for the game's only scoring.

The St. Louis Cardinals led the National League in runs scored and averaged six runs per game in the regular season, but could manage only two runs per game in this World Series.

The 1930 Series victory was the Athletics' fifth (including, , and ), and their last one in Philadelphia before moving to Kansas City in 1955 and Oakland in 1968, where the A's have won four world titles (1972–74 & 1989). Their 1930 win tied them with the Boston Red Sox for most Series wins as of that point (five) until, when the New York Yankees surged ahead of both in Series wins and went on to amass 27 world championships as of 2012.

Game 1
Wednesday, October 1, 1930 at Shibe Park in Philadelphia, Pennsylvania

Game 2
Thursday, October 2, 1930 at Shibe Park in Philadelphia, Pennsylvania

Game 3
Saturday, October 4, 1930 at Sportsman's Park (III) in St. Louis, Missouri

Game 4
Sunday, October 5, 1930 at Sportsman's Park (III) in St. Louis, Missouri

Game 5
Monday, October 6, 1930 at Sportsman's Park (III) in St. Louis, Missouri

George Earnshaw dueled Burleigh Grimes 0–0 through seven innings before Lefty Grove took over for Earnshaw in the eighth. In the top of the ninth, Grimes walked Mickey Cochrane and then coughed up a home run ball to Jimmie Foxx. it must have been a patented Foxx blast, for Grimes said later, "he hit it so hard I couldn't feel sorry for myself."

Game 6
Wednesday, October 8, 1930 at Shibe Park in Philadelphia, Pennsylvania

Composite line score
1930 World Series (4–2): Philadelphia Athletics (A.L.) over St. Louis Cardinals (N.L.)