- Oct 1 Bradley Center in Milwaukee opens with an exhibition hockey game between Chicago Blackhawks and Edmonton Oilers; construction cost $90 million; closed 2018
- Oct 1 Canadian synchronised swimmer Carolyn Waldo teams with Michelle Cameron to win the duet gold medal at the Seoul Olympics; wraps up double having won individual title
Olympic Gold
Oct 1 Flamboyant American sprinter Florence Griffith Joyner wins her third gold medal of the Seoul Olympics anchoring the victorious US 4 x 100m relay team
Sports History
Oct 1 Lowest batting avg for NL champion (Tony Gwynn .313)
Olympic Gold
Oct 1 Steffi Graf beats Gabriela Sabatini 6-3, 6-3 to win the women's singles tennis gold medal at the Seoul Olympics; clinches first and only Golden Slam in history (Grand Slam & Olympics)
- Oct 1 The inaugural Olympic table tennis program concludes in Seoul with China and South Korea each winning 2 titles
- Oct 1 The Soviet women's 4 x 400m relay team runs world record 3:15.17 to beat a star-studded US team and win the Olympic gold medal in Seoul; Tatyana Ledovskaya, Olga Nazarova, Mariya Pinigina & Olga Bryzgina
- Oct 1 Yuri Savichev scores in extra time as the Soviet Union beats Brazil 2-1 to win the men's football gold medal at the Seoul Olympics
Olympic Gold
Oct 2 Future world heavyweight boxing champion Lennox Lewis, representing Canada, wins super-heavyweight gold medal at the Seoul Olympics; beats American Riddick Bowe by 2nd round TKO
- Oct 2 Gelindo Bordin of Italy wins the men's marathon in 2:10:32 at the Seoul Olympics; beats world champion Douglas Wakiihuri of Kenya by 15 seconds
- Oct 2 In a season ending 7-5 win in St. Louis, NY Mets' outfielder Kevin McReynolds establishes a MLB record swiping 21 bases without being caught stealing during the season
Sports History
Oct 2 Mike Tyson wrecks furniture in his mansion in Bernardsville, NJ, during a domestic dispute
- Oct 2 Minnesota Twins total 3,030,672 in attendance at Hubert H Humphrey Metrodome; first AL club ever to break 3 million in a MLB season
- Oct 2 New Zealand horseman Mark Todd wins individual eventing gold medal aboard Charisma at the Seoul Olympics; his 2nd consecutive gold after winning in 1984
- Oct 2 South Korean light middleweight boxer Park Si-hun is controversially awarded the Seoul Olympic gold medal after appearing well beaten by future 4 weight class world champion Roy Jones Jr
- Oct 6 Oakland A's sweep Boston Red Sox in 4 games for AL pennant
- Oct 7 Jim Fregosi is fired as manager of White Sox
- Oct 7 Lou Piniella is fired as manager of Yankees for 2nd time
- Oct 9 9th Rugby League World Cup: Australia beats New Zealand 25-12
- Oct 9 Dennis Eckersley, 1st to save all 4 games in a championship series
- Oct 9 MLB American League Championship: Oakland Athletics beat Boston Red Sox, 4 games to 0
- Oct 12 MLB National League Championship: Los Angeles Dodgers beat New York Mets, 4 games to 3
- Oct 14 NJ Devils raise their 1st pennant by winning the Patrick Division Playoff Championship
- Oct 15 NCAA record rushing yardage (768 yards-Oklahoma)
- Oct 15 With 2 outs in bottom of 9th, an injured Kirk Gibson hits dramatic 2 run HR to give Dodgers a 5-4 win in 1st game of World Series
- Oct 16 Orel Hirsheiser, 1st to pitch shutout in playoff & World Series
- Oct 17 Dallas Green replaces Lou Pinella as manager of NY Yankees
World Series
Oct 20 Baseball World Series: LA Dodgers beat Oakland A's, 5-2 at Oakland–Alameda County Coliseum to clinch 4-1 series win: MVP: LA pitcher Orel Hershiser
Sports History
Oct 24 New York Islanders and NHL high scorer, Mike Bossy (31) retires
Sports History
Oct 26 Donald Trump bills Mike Tyson $2,000,000 for 4 months' advisory service
Golf Tournament
Oct 30 Beth Daniel wins Nichirei Ladies Cup US-Japan Team Golf Championship
F1 World Champion
Oct 30 Brazilian McLaren driver Ayrton Senna wins Japanese Grand Prix at Suzuka, his record 8th GP win of the season; clinches first Formula 1 World Drivers Championship
- Oct 30 NY Jets finally beat Pittsburgh Steelers for 1st time
- Oct 31 First Monday Night NFL game played in Indianapolis; Colts beat Denver Broncos, 55-23