Events in Sport
- Sep 5 US Men's Amateur Golf Championship, The Country Club: Jay Sigel wins 8 & 7 over David Tolley
Event of Interest
Sep 6 Pittsburgh Pirates retire Willie Stargell's #8

Willie Stargell
US Open Women's Tennis
Sep 11 US Open Women's Tennis: Chris Evert wins her 6th and final US title, beating Hana Mandlíková 6-3, 6-1

Chris Evert

Hana Mandlikova
US Men's Tennis Open
Sep 12 US Open Men's Tennis: Jimmy Connors wins his 4th US title; beats Czech star Ivan Lendl 6-3, 6-2, 4-6, 6-4

Jimmy Connors

Ivan Lendl
- Sep 13 Joe Lefevre gets 6 hits in one baseball game
- Sep 14 Trevor Baxter sets skateboard high jump record of 5' 5.7"
- Sep 19 New Orleans Saints 1st road shutout victory beating Chicago Bears 10-0
- Sep 21 2,251 turn out to see Expos play NY Mets at Shea Stadium
- Sep 21 NFL players begin a 57 day strike
- Sep 22 Duleep Mendis completes twin cricket tons for Sri Lanka v India
- Sep 25 Keke Rosberg becomes the first Fin to win the Formula 1 World Drivers Championship when he finishes 5th in season ending Caesars Palace Grand Prix in Las Vegas; wins by 5 points from Didier Pironi
Birthdays in Sport
- Sep 1 Paul Dumbrell, Australian racing driver
- Sep 1 Ryan Gomes, American basketball player
- Sep 1 Jeffrey Buttle, Canadian figure skater
- Sep 2 Joey Barton, English footballer
- Sep 2 Jason Hammel, American baseball player
- Sep 5 Alexandre Geijo, Spanish-Swiss footballer, born in Geneva, Switzerland
- Sep 7 Andre Dirrell, American boxer (IBF interim super middleweight 2017-18), born in Flint, Michigan
- Sep 8 Marian Cozma, Romanian handball player (Romania 60 caps), born in Bucharest, Romania (d. 2009)
- Sep 13 Nenê, Brazilian basketball player (Houston Rockets), born in São Carlos, Brazil
- Sep 13 Rickie Weeks, American baseball player, born in Altamonte Springs, Florida
- Sep 13 Miha Zupan, Slovenian basketball player, born in Kranj, Slovenia
- Sep 16 Leon Knight, English footballer, born in Hackney, England
- Sep 17 Garth Murray, Canadian ice hockey player
- Sep 19 Eleni Daniilidou, Greek tennis player, born in Chania, Crete, Greece
- Sep 19 Jordan Parise, American ice hockey player, born in Faribault, Minnesota
- Sep 21 Eduardo Azevedo, Brazilian racing driver
- Sep 21 Danny Kass, American snowboarder
- Sep 21 Marat Izmailov, Russian footballer
- Sep 21 Rowan Vine, English footballer
- Sep 22 Kosuke Kitajima, Japanese swimmer (Olympic gold 100/200m breaststroke 2004, 08), born in Tokyo, Japan
- Sep 24 Morgan Hamm, American gymnast, born in Washburn, Wisconsin
- Sep 24 Paul Hamm, American gymnast, born in Washburn, Wisconsin
- Sep 24 Jeff Karstens, American baseball player, born in San Diego, California
- Sep 26 Miguel Alfredo Portillo, Argentine footballer, born in Gobernador Virasoro, Argentina
- Sep 26 Rob Burrow, English rugby league halfback (England 15 Tests, GB 5 Tests; Super League C'ships 2004, 07-09, 11-12, 15, 17; Leeds Rhinos), born in Pontefract, England
- Sep 27 Darrent Williams, American football player (d. 2007)
- Sep 28 Anderson Varejão, Brazilian basketball player
- Sep 28 Abhinav Bindra, Indian shooter
- Sep 28 Ray Emery, Canadian hockey player
- Sep 28 Emeka Okafor, American basketball player
- Sep 28 Dustin Penner, Canadian hockey player
Deaths in Sport
- Sep 7 Ken Boyer, American baseball player (b. 1931)
- Sep 19 Ted Badcock, New Zealand cricketer (7 Tests for NZ 1930-33, 16 wkts), dies at 85
- Sep 26 Alec Hurwood, Australian cricketer (Australian off-spinner v WI 1930-31), dies at 80
- Sep 27 Ralph Baldwin, Canadian harness driver and trainer (11 major world records; Hambletonian Stakes 1963, 73), dies at 66
- Sep 29 Slinger Nitschke, Australian cricketer (2 Tests for Australia 1931-32), dies at 77
- Sep 29 Monty Stratton, baseball player (b. 1912)