- Sep 1 Belgian boxer Gustave Roth beats Heinz Lazek of Austria in a 15 round points decision to win the EBU and vacant IBU world light heavyweight title in Vienna
- Sep 2 NFL Chicago College All-Star Game: All-Stars 7, Detroit Lions 7; 76,000 at Soldier Field
- Sep 3 For the first and only time in the history of the Walker Cup golf event, there is a shutout; the United States routs Great Britain, 9-0 at Pine Valley GC in New Jersey
US Open Women's Tennis
Sep 12 50th US National Championship Women's Tennis, Forest Hills, NY: #3 seed Alice Marble beats top seeded fellow American Helen Jacobs 4-6, 6-3, 6-2
US Men's Tennis Open
Sep 12 US National Championship Men's Tennis: Englishman Fred Perry wins his 8th and final Grand Slam event before turning pro; beats American Don Budge 2-6, 6-2, 8-6, 1-6, 10-8
Baseball Record
Sep 13 17-year-old Cleveland Indians future Baseball HOF pitcher Bob Feller strikes out then record 17 Philadelphia A's in 5-2 win at League Park, Cleveland
Baseball Record
Sep 14 Pittsburgh Pirates' future Baseball Hall of Fame outfielder Paul Waner ties Rogers Hornsby's NL record of 200 MLB hits for 7th time
- Sep 27 Boston Redskins and Brooklyn Dodgers play one of only 4 penalty free games in NFL history; Boston wins 14-3 at Ebbets Field, Brooklyn
Baseball History
Sep 27 First baseman Walter Alston plays in his only major league game for the St. Louis Cardinals; later manages Brooklyn/Los Angeles Dodgers for 23 years
Baseball Players
Basketball Stars
Boxers
Footballers
NFL Stars
Tennis Champions