- 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