1998 in sports describes the year's events in world sport.
|Years in sports:||1995 1996 1997 1998 1999 2000 2001|
|Centuries:||19th century · 20th century · 21st century|
|Decades:||1960s 1970s 1980s 1990s 2000s 2010s 2020s|
|Years:||1995 1996 1997 1998 1999 2000 2001|
- Alpine Skiing World Cup
- January 13 – ABC and ESPN negotiate a $1.15 billion a season contract to keep Monday Night Football.
- Super Bowl XXXII – Denver Broncos won 31–24 over the Green Bay Packers
- December 13 – The Baltimore Ravens and Minnesota Vikings return an NFL record 3 kickoff returns for touchdowns.
- NCAA – The Tennessee Volunteers claim the first ever BCS National Championship over the Florida State Seminoles.
- For an extensive coverage see 1998 in association football
- FIFA World Cup - France beat Brazil 3–0
- Champions League – Real Madrid C.F. beat Juventus F.C. 1–0
- UEFA Cup – F.C. Internazionale Milano beat S.S. Lazio 3–0
- Copa Libertadores – CR Vasco da Gama beat Barcelona Sporting Club 4–1 (Agg.)
- Ecuador - Ecuadorian Serie A Champions: Liga Deportiva Universitaria de Quito
- August – 1998 European Championships in Athletics held at Budapest
- September – 1998 Commonwealth Games held at Kuala Lumpur
- December – 1998 Asian Games held at Bangkok
- Australian Football League
- Mark McGwire and Sammy Sosa each chase the home run record set previously by Roger Maris in 1961. Both men end up breaking the record; McGwire with 70 and Sosa with 66.
- Rookie 20 year old Kerry Wood strikes out 20 Houston Astros to tie the major league single game strikeout record
- Cal Ripken Jr. ends his consecutive game streak at 2,632 in Baltimore against the New York Yankees. It was the first time he wasn't in the lineup since 1982.
- World Series – New York Yankees win 4 games to 0 over the San Diego Padres. The Series MVP is Scott Brosius, New York
- July 1 – The NBA locked out its players and the season was put on hold for the next 6½ months and the season began under a 50–game schedule.
- NCAA Men's Basketball Championship –
- NBA Finals –
- WNBA Finals –
- FIBA World Championship
- Yugoslavia World Champion
- National Basketball League (Australia) Finals:
- May 17 to May 24 – 32nd European Amateur Boxing Championships held at Minsk, Belarus
- June 27 – Shane Mosley stopped Wilfrido Ruiz in the 5th round to retain the IBF Lightweight Championship
- Grey Cup – Calgary Stampeders win 26–24 over the Hamilton Tiger-Cats
- Vanier Cup – Saskatchewan Huskies win 24–17 over the Concordia Stingers
- Curling makes its Winter Olympics debut:
- Men's Gold: Switzerland wins 9-3 over Canada
- Women's Gold: Canada wins 7-5 over Denmark
- Giro d'Italia won by Marco Pantani of Italy
- Tour de France – Marco Pantani of Italy
- UCI Road World Championships – Men's road race – Oskar Camenzind of Switzerland
- Men's World Cup: Netherlands
- Men's Commonwealth Games: Australia
- Men's Champions Trophy: Netherlands
- Women's World Cup: Australia
- Women's Commonwealth Games: Australia
- World Figure Skating Championships –
- Gaelic football
- Ladies' Gaelic football
- Masters Tournament – Mark O'Meara
- U.S. Open – Lee Janzen
- British Open – Mark O'Meara
- PGA Championship – Vijay Singh
- PGA Tour money leader – David Duval – $2,591,031
- PGA Tour Player of the Year – Mark O'Meara
- PGA Tour Rookie of the Year – Steve Flesch
- Senior PGA Tour money leader – Hale Irwin – $2,861,945
- Nabisco Dinah Shore – Pat Hurst
- LPGA Championship – Se Ri Pak
- U.S. Women's Open – Se Ri Pak
- Classique du Maurier – Brandie Burton
- LPGA Tour money leader – Annika Sörenstam – $1,092,748
- The Solheim Cup is retained by the United States team who beat the European team 16 to 12.
- North America Cup – Straight Path
- United States Pacing Triple Crown races –
- United States Trotting Triple Crown races –
- Australian Inter Dominion Harness Racing Championship –
- Pacers: Our Sir Vancelot
- Trotters: Buster Hanover
- Australia – Melbourne Cup – Jezabeel
- Canada – Queen's Plate – Archers Bay
- Dubai – Dubai World Cup won by Silver Charm
- France – Prix de l'Arc de Triomphe – Sagamix
- Ireland – Irish Derby Stakes – Dream Well
- Japan – Japan Cup won by El Condor Pasa
- English Triple Crown races:
- United States Triple Crown races:
- Breeders' Cup World Thoroughbred Championships:
- For the first time, professional players from the National Hockey League participate in the Winter Olympics. And also for the first time in Olympic history, women took part in ice hockey.
- Women's Gold – United States won 3–1 over Canada
- Men's Gold – Czech Republic won 1–0 over Russia
- Art Ross Memorial Trophy as the NHL's leading scorer during the regular season: Jaromir Jagr, Pittsburgh Penguins
- Hart Memorial Trophy – for the NHL's Most Valuable Player: Dominik Hasek – Buffalo Sabres
- Stanley Cup – Detroit Red Wings defeated the Washington Capitals 4 games to 0.
- World Hockey Championship
- The 8th World Lacrosse Championship is held in Baltimore, Maryland. The United States win, and Canada is the runner–up.
- The Philadelphia Wings sweep the Baltimore Thunder in the best of three series held to determine the winner of the Champion's Cup.
- The Brampton Excelsiors win the Mann Cup.
- The Clarington Green Gaels win the Founders Cup.
- The Burnaby Lakers win the Minto Cup.
The following is a list of major noteworthy MMA events during 1998 in chronological order.
|Date||Event||Alternate Name/s||Location||Attendance||PPV Buyrate||Notes|
|March 13||UFC 16: Battle in the Bayou||N/A||New Orleans, Louisiana, US||4,600||N/A||This event featured the first ever UFC lightweight tournament. As well as a middleweight championship bout. And a heavyweight and middleweight superfights.|
|March 15||Pride 2||N/A||Yokohama, Japan||N/A||N/A||Event featured six MMA bouts and two kickboxing bouts.|
|May 15||UFC 17: Redemption||N/A||Mobile, Alabama, US||N/A||N/A||This event was the last UFC event aside from UFC 23, to feature the "tournament" style format.
This event featured a four-man middleweight tournament. As well as three heavyweight superfights.
|June 24||Pride 3||N/A||Tokyo, Japan||N/A||N/A||N/A|
|October 11||Pride 4||N/A||Tokyo, Japan||N/A||N/A||N/A|
|October 16||UFC Brazil: Ultimate Brazil||UFC 17.5||São Paulo, Brazil||N/A||N/A||This event caused controversy due to the fact that the Brazilian flag was wrongly represented on the promotional material.|
- Stock car racing –
- Indy Racing League –
- Indianapolis 500 – Eddie Cheever
- CART Racing – Alex Zanardi won the season championship
- Formula One Championship – Mika Häkkinen of Finland
- 24 hours of Le Mans – won by the team of Laurent Aïello / Allan McNish / Stéphane Ortelli driving a Porsche 911 GT–1
- Rallying – Tommi Mäkinen won the World Rally Championship
- Drag racing – Gary Scelzi won the NHRA "Top Fuel" championship.
- 1998 NRL season
- Super League III
- 1998 State of Origin series
- 1998 New Zealand season
- 1997–98 French Championship season
- 1998–99 French Championship season
- 104th Five Nations Championship series is won by France who complete the Grand Slam
- Tri Nations series is won by South Africa for the first time, with a clean sweep of victories. South Africa goes on to equal New Zealand's all-time record of 17 consecutive test victories.
- World Snooker Championship – John Higgins beats Ken Doherty 18–12
- World rankings – John Higgins becomes world number one for 1998/99
- Eighth FINA World Championships, held in Perth, Australia (January 8 – 17)
- Second European SC Championships, held in Sheffield, United Kingdom (December 11 – December 13)
- December 1 – American swimmer Jenny Thompson breaks her own world record in the women's 100m butterfly (short course): 56:90
- December 13 – Mark Foster twice breaks the world record in the men's 50m freestyle (short course) during the European SC Championships in Sheffield, clocking 21.31 eventually.
Grand Slam in tennis men's results:
- Australian Open – Petr Korda
- French Open – Carlos Moyà
- Wimbledon championships – Pete Sampras
- US Open – Patrick Rafter
Grand Slam in tennis women's results:
- Australian Open – Martina Hingis
- French Open – Arantxa Sánchez Vicario
- Wimbledon championships – Jana Novotná
- US Open – Lindsay Davenport
- Davis Cup – Sweden wins 4–1 over Italy in world tennis.
- Men's World Championship: Italy
- Women's World Championship: Cuba
- Men's World Championship: Spain
- Women's World Championship: Italy
- The 1998 World Weightlifting Championships were held in Lahti, Finland from November 7 to November 15.
- 1998 Winter Olympics held in Nagano, Japan
- Germany wins the most medals (29), and the most gold medals (12)
- Asian Games held in Bangkok, Thailand
- 1998 Commonwealth Games held in Kuala Lumpur, Malaysia
- Central American and Caribbean Games held in Maracaibo, Venezuela
- Summer Goodwill Games held in New York City, United States
- Associated Press Male Athlete of the Year – Mark McGwire, Major League Baseball
- Associated Press Female Athlete of the Year – Se Ri Pak, LPGA golf