Events in Sport
- Sep 4 US Men's Amateur Golf Championship, North Shore CC: Jay Sigel successfully defends title 8 & 7 over Chris Perry
- Sep 4 Greg LeMond wins UCI World Road Race Championship in 7h 01' 21" in Altenrhein, Switzerland; first American cyclist to take the title
Event of Interest
Sep 9 Vitas Gerulaitis bets his house that Martina Navratilova can't beat 100th ranked male tennis player

Martina Navratilova
Boxing Title Fight
Sep 10 Larry Holmes TKOs Scott Frank in 5 for heavyweight boxing title

Larry Holmes
- Sep 10 US Open Women's Tennis: Martina Navratilova beats Chris Evert-Lloyd 6-1, 6-3 for her first US singles title
US Men's Tennis Open
Sep 11 US Open Men's Tennis: American Jimmy Connors retains title; repeats previous year's win over Czech Ivan Lendl 6-3, 6-7, 7-5, 6-0

Jimmy Connors

Ivan Lendl
Baseball Record
Sep 13 Oakland's Rickey Henderson 3rd straight 100 steals for season

Rickey Henderson
- Sep 13 US mint strikes 1st gold coin in 50 years (Olympic Eagle)
- Sep 17 Chicago White Sox clinch their 1st-ever AL West championship
- Sep 18 New Orleans Saints 1st OT victory; beating Chicago Bears 34-31
- Sep 20 3,112 turn out to see Pirates play NY Mets at Shea Stadium
- Sep 22 Zhu Jianhau (China) sets high jump record at 7'9 3/4"
- Sep 23 Gerrie Coetzee KOs Michael Dokes in 10 for heavyweight boxing title in Ohio
Event of Interest
Sep 23 Phillies Steve Carlton is 16th to wins 300 game (beating Cards)

Steve Carlton
Event of Interest
Sep 27 Tim Raines is 1st since Ty Cobb to steal 70 & drive in 70 runs

Tim Raines

Ty Cobb
- Sep 29 Oakland A's Mike Warren no-hits Chicago White Sox, 3-0
Birthdays in Sport
- Sep 1 José Antonio Reyes, Spanish soccer left wing (Spain 21 caps; Sevilla, Atlético Madrid, Arsenal), born in Utrera, Spain (d. 2019)
- Sep 2 Mark Foster, English rugby player
- Sep 3 Augusto Farfus, Brazilian racing driver, born in Curitiba, Brazil
- Sep 3 Nicky Hunt, English footballer, born in Westhoughton, England
- Sep 4 Tareq Aziz, Bangladeshi cricketer, born in Chittagong, Bangladesh
- Sep 5 Eugen Bopp, Ukrainian-German footballer, born in Kiev, Ukraine
- Sep 5 Pablo Granoche, Uruguayan footballer, born in Montevideo, Uruguay
- Sep 7 Philip Deignan, Irish cyclist (UCI Pro Team), born in Letterkenny, County Donegal, Ireland
- Sep 7 Mehmet Topuz, Turkisher footballer (Kayserispor), born in Caferli Köyü, Yozgat, Turkey
- Sep 7 Pops Mensah-Bonsu, British basketball player for the Dallas Mavericks, born in Tottenham, London
- Sep 7 Annette Dytrt, German skater figure, born in Landshut, Germany
- Sep 8 Wali Lundy, American NFL football player, born in New Brunswick, New Jersey
- Sep 8 Diego Benaglio, Swiss-Italian footballer, born in Zürich, Switzerland
- Sep 8 Chris Judd, Australian rules football player, born in Melbourne, Australia
- Sep 8 Will Blalock, American basketball player, born in Boston, Massachusetts
- Sep 9 Kyle Davies, American baseball player, born in Decatur, Georgia
- Sep 9 Edwin Jackson, American baseball pitcher, born in Neu-Ulm, Germany
- Sep 9 Sam Hollenbach, American football quarterback, born in Doylestown, Pennsylvania
- Sep 9 Cleveland Taylor, English-born Jamaican footballer, born in Leicester, United Kingdom
- Sep 10 Joey Votto, Canadian MLB first baseman (NL MVP 2010), born in Toronto, Ontario
- Sep 11 Jacoby Ellsbury, American baseball player, born in Madras, Oregon
- Sep 11 Ike Diogu, Nigerian-American basketball player, born in Buffalo, New York
- Sep 12 Daniel Muir, American football player, born in Washington, D.C.
- Sep 14 Frostee Rucker, American NFL defensive end, born in Tustin, California
- Sep 15 Luke Hochevar, American baseball player
- Sep 16 Kirsty Coventry, Zimbabwean Olympic swimmer, born in Harare, Zimbabwe
- Sep 18 Kevin Doyle, Irish footballer, born in Adamstown, Ireland
- Sep 19 Joey Devine, American baseball player, born in Junction City, Kansas
- Sep 19 Charlie Haeger, American baseball player, born in Livonia, Michigan
- Sep 20 Ángel Sánchez, Puerto Rican baseball player
- Sep 21 Fernando Cavenaghi, Argentinian footballer
- Sep 21 Anna Meares, Australian cyclist
- Sep 24 Randy Foye, American basketball player, born in Newark, New Jersey
- Sep 26 Ricardo Quaresma, Portuguese footballer, born in Lisbon, Portugal
- Sep 28 Stefan Moore, English footballer
- Sep 30 Andreea Răducan, Romanian gymnast, born in Bârlad, Romania