May 30

1921 There are eight doubleheaders on the major league schedule, with all four NL contests resulting in a sweep; the Pittsburgh Pirates sweep the Chicago Cubs at Forbes Field, the New York Giants sweep the Philadelphia Phillies at the Polo Grounds, the St. Louis Cardinals sweep the Cincinnati Reds at Redland Field and the Boston Braves sweep the Brooklyn Dodgers at Braves Field. Meanwhile, in the American League, the Boston Red Sox are swept by the A's in Philadelphia, and the St. Louis Browns and Chicago White Sox split a pair at Comiskey Park, the Cleveland Indians and Detroit Tigers split a pair at Navin Field, and the New York Yankees and Washington Senators split a pair at Griffith Stadium. Highlights of the doubleheaders include a two-hitter by the Senators' George Mogridge, and a sixteen inning marathon between the Braves and Dodgers.

1930 The New York Yankees trade Waite Hoyt and Mark Koenig to the Detroit Tigers for Ownie Carroll, Harry Rice and Yats Wuestling.

2009 A 25 inning marathon between the University of Texas at Austin and Boston College is the longest baseball game in NCAA Division I history. Texas Longhorns closer Austin Wood entered the game with one out in the seventh inning, and pitched 12.1 innings of no hit ball before surrendering a single in the 19th inning to Tony Sanchez. Longhorns Second baseman Tony Tucker singles in Connor Rowe in the top of the 25th, and Austin Dicharry retires Boston 1-2-3 in the bottom of the inning to secure the 3-2 victory.