US Men's Tennis Open
Sep 4 US National Championship Men's Tennis, Forest Hills NY: Bill Johnston wins his second US title; beats Bill Tilden 6-4, 6-4, 6-3
- Sep 10 Cleveland Indians pitcher Ray Caldwell no-hits New York Yankees, 3-0 at the Polo Grounds, NYC
PGA Championship
Sep 20 PGA Championship Men's Golf, Engineers CC: Defending champion Jim Barnes defeats Fred McLeod, 6 & 5 in the final
- Sep 24 Boston Red Sox slugger Babe Ruth sets MLB season home run record at 28 off Yankee Bob Shawkey in a 2-1 loss at the Polo Grounds in NYC
- Sep 27 Boston Red Sox slugger Babe Ruth takes his MLB home run record to 29 with a 3rd inning blast in a 7-5 defeat at the Washington Senators' Griffith Stadium
- Sep 27 Pitcher Bob Shawkey sets then Yank record with 15 strike-outs
- Sep 28 Fastest major league game (51 mins), Giants beat Phillies 6-1