Events in Sport
- Sep 4 New York Yankees clinch their 3rd straight AL pennant; beat the Red Sox, 6-3; earliest date in baseball history a team has captured a flag
US Men's Tennis Open
Sep 7 US National Championship Men's Tennis, Forest Hills, NY: 1939 champion Bobby Riggs beats Frank Kovacs 5-7, 6-1, 6-3, 6-3

Bobby Riggs
- Sep 7 US National Championship Women's Tennis, Forest Hills, NY: Sarah Palfrey Cooke beats fellow American Pauline Betz Addie 7-5, 6-2; sweeps all 3 women's titles
Event of Interest
Sep 17 Cards' Stan Musial makes his major league debut, going 2-for-4

Stan Musial
Event of Interest
Sep 28 Ted Williams ended the baseball season with .406 batting avg

Ted Williams
- Sep 29 Million jam downtown Brooklyn to cheer NL champ Dodgers in a parade
Birthdays in Sport
- Sep 2 John Thompson, American Basketball Hall of Fame center, coach and broadcaster (NBA C'ship 1965, 66, Boston Celtics; coach NCAA C'ship 1984, Georgetown), born in Washington, D.C. (d. 2020)
- Sep 2 Graeme Langlands, Australian rugby league fullback, captain and coach (24 Tests; St. George), born in Wollongong, New South Wales (d. 2018)
- Sep 4 Ramesh Sethi, Kenyan cricketer, born in Kenya
- Sep 4 Ken Harrelson, American baseball utility (MLB All Star; AL RBI leader 1968; KC A's, Boston Red Sox) and broadcaster (Boston Red Sox, NY Yankees, Chicago WS), born in Woodruff, South Carolina
- Sep 15 Flórián Albert, Hungarian footballer
- Sep 16 Tommy Carberry, Irish jockey (d. 2017)
- Sep 17 William Grut, Swedish pentathlete (Olympic gold 1948), born in Stockholm (d. 2012)
- Sep 19 Jim Fox, British pentathlete (Olympics gold 1972), born in Pewsey, Wiltshire, England
- Sep 24 John Mackey, American NFL tight end (Baltimore Colts, San Diego Chargers), born in Roosevelt, New York (d. 2011)
- Sep 24 Tony Rutter, British motorcycle road racer (Formula Two World C'ship 1981-84; 7 x Isle of Man TT Races), born in Wordsley, England (d. 2020)
- Sep 27 Roger Claessen, Belgian soccer striker (17 caps; Standard de Liège), born in Warsage, Belgium (d. 1982)
- Sep 27 Peter Bonetti, English soccer goalkeeper (7 caps; World Cup 1966; Chelsea 600 games), born in London, England (d. 2020)
- Sep 28 Charley Taylor, NFL wide receiver/running back (Wash Redskin)
- Sep 29 David Steele, British cricketer (England batsman, courageous v Lillee 1975), born in Bradeley, Stoke-on-Trent, England
- Sep 29 Kermit Zarley, American golfer, author (Canadian Open 1970), born in Seattle, Washington
Deaths in Sport
- Sep 1 Benjamin Dwight, American tennis championship umpire, dies