Events in Sport
- Sep 1 Goran Ivanišević and Daniel Nestor play a 20–18 tiebreaker in their US Open first round match, eventually won by Ivanišević 6–4, 7–6, 7–6(20–18); longest tiebreak in US Open history
- Sep 4 Penn State University plays its first football game in the Big 10, beating Minnesota 38-20; quarterback John Sacca throws 4 touchdown passes to Bobby Engram
- Sep 4 New York Yankees pitcher Jim Abbott no-hits Cleveland Indians, 4-0 at Yankee Stadium
US Men's Tennis Open
Sep 4 Mats Wilander beats fellow Swede Mikael Pernfors in a US Open marathon 7-6, 3-6, 1-6, 7-6, 6-4 in 4 hours, 1 minute; match ends at 2:26am

Mats Wilander

Mikael Pernfors
US Open Women's Tennis
Sep 11 US Open Women's Tennis: Steffi Graf wins 15th Grand Slam singles title, 3rd US title; beats Helena Suková 6-3, 6-3

Steffi Graf
US Men's Tennis Open
Sep 12 US Open Men's Tennis: Pete Sampras wins his second US title; beats Frenchman Cédric Pioline 6-4, 6-4, 6-3

Pete Sampras

Cedric Pioline
- Sep 16 Minnesota Twins Dave Winfield is 19th to get 3,000 hits
- Sep 18 LA Mighty Ducks play their 1st NHL pre-season game against Penguins
- Sep 18 Trailing 3-1 with 2 outs in 9th, time is called prior to Mike Stanley pop out, gets a 2nd chance, & Yanks rally to beat Boston 4-3
- Sep 19 Tom Glavine wins 20 games in 3 straight years
- Sep 19 San Diego Chargers' kicker John Carney boots 6 field goals in an 18-17 win over Houston to set a new NFL record with 29 consecutive field goals made
Event of Interest
Sep 22 Nolan Ryan, 46, pitches his last game

Nolan Ryan
- Sep 26 Ryder Cup Golf, The Belfry: US beats Europe, 15-13; Davis Love III secures victory for the US beating Costantino Rocca at the 18th, 1 up
- Sep 26 Cubs bat out of order against Pirates in 2nd inning
- Sep 26 Indians win their last game at Cleveland Stadium, beating Brewers 6-4
Event of Interest
Sep 26 French Williams driver Alain Prost finishes 2nd in Portuguese Grand Prix at Estoril to clinch his 4th F1 World Drivers Championship; after race Prost announces his retirement at the end of the season

Alain Prost
Event of Interest
Sep 28 Dennis Martínez is 7th to win 100 games in AL & NL

Dennis Martínez
Birthdays in Sport
- Sep 3 Dominic Thiem, Austrian tennis player (US Open 2020, ATP Finals 2019), born in Wiener Neustadt, Austria
- Sep 10 Sam Kerr, Australian football player (Chicago Red Stars), born in East Fremantle, Australia
- Sep 16 Bryson DeChambeau, American golfer (US Open 2020), born in Modesto, California
- Sep 21 Park Sung-hyun, South Korean golfer, (US Open 2017; Women's PGA C'ship 2018), born in Seoul, South Korea
Weddings in Sport
- Sep 4 Five-time U.S. national champion figure pair skater Jerod Swallow (26) weds his partner Elizabeth Punsalen
Deaths in Sport
- Sep 7 Guy Overton, New Zealand cricket fast bowler (3 Tests, 9 wickets), dies at 74
- Sep 8 Lorin "Whitey" Harrison, surfer, dies of a heart attack at 80
- Sep 10 Josef Odložil, Czech Athlete (1500m Olympic silver 1964), dies after a fight with his son at 54
- Sep 15 Ethan Allen, American baseball center fielder (inventor Cadaco-Ellis board game All Star Baseball; Yale University), dies at 89
- Sep 16 Willie Mosconi, American pool player (World C'ship pocket billiards 1941-57), dies of heart attack at 80
- Sep 20 Loan Volkerijk, Dutch baseball coach (ADO), dies at 65
- Sep 26 John Pennel, American pole vaulter (James E Sullivan Award-1963), dies at 53
- Sep 26 Owen Aisher, English businessman and president (Royal Yachting Association 1970-75), dies at 93