1898 in sports

American football

• College football national championship – Harvard Crimson

• Western Pennsylvania champions – Duquesne Country and Athletic Club

• The Morgan Athletic Club, which will eventually become Arizona Cardinals, is founded in Chicago and is the sport's oldest professional team.
• 3 December — the Western Pennsylvania All-Stars are defeated by the Duquesne Country and Athletic Club, 16–0, in the very first all-star game for professional football.

  Association football

• The Football League – Sheffield United 42 points, Sunderland 37, Wolves 35, Everton 35, Sheffield Wednesday 33, Aston Villa 33
• FA Cup final – Nottingham Forest 3–1 Derby County at Crystal Palace, London.
• Both the Football League First and Second Divisions are expanded from 16 to 18 teams in 1898, bringing the total number of League sides to 36. Additionally, the test match system is abandoned in favour of automatic relegation and promotion. There is no relegation from the First Division in 1898, Burnley and Newcastle United being promoted to increase the number of teams to 18. To increase the size of the Second Division, Burslem Port Vale is restored to the League; Barnsley, Glossop and New Brighton Tower are elected for the first time.

• Formation of the Italian Football Federation in Turin. It is also known as Federcalcio.

• Scottish Football League – Celtic
• Scottish Cup – Rangers 2–0 Kilmarnock at Hampden Park

  Athletics

• Ronald J. MacDonald wins the second running of the Boston Marathon.

  Australian rules football

• Fitzroy wins the 2nd VFL Premiership: Fitzroy 5.8 d Essendon 3.5 at Junction Oval

  Baseball

• National League championship – Boston Beaneaters. This is Boston's fifth championship in eight years under manager Frank Selee.

• 22 April — multiple no-hitters are thrown on the same day by two players: Ted Breitenstein and Jay Hughes.

  Basketball

• 23 April – The 23rd Street YMCA of New York City wins the first national basketball championship tournament, organized by the U.S. Amateur Athletic Union.

  Boxing

• World Heavyweight Championship – Bob Fitzsimmons
• World Middleweight Championship – vacant → Tommy Ryan
• World Welterweight Championship – Tommy Ryan → Ryan vacates title → "Mysterious" Billy Smith
• World Lightweight Championship – George "Kid" Lavigne
• World Featherweight Championship – Solly Smith → Dave Sullivan → George Dixon
• World Bantamweight Championship – Jimmy Barry

  Cricket

• County Championship – Yorkshire
• Minor Counties Championship – Worcestershire
• Most runs – Bobby Abel 2053 @ 48.88
• Most wickets – Jack Hearne 222 @ 14.05
• Wisden Five Cricketers of the Year – Wilfred Rhodes, Bill Storer, Charlie Townsend, Albert Trott, William Lockwood

• Sheffield Shield – Victoria
• Most runs – Clem Hill 1196 @ 66.44
• Most wickets – Ernie Jones 76 @ 21.75

• Bombay Presidency – Parsees

• Currie Cup – Transvaal

• Inter-Colonial Tournament – not contested

  Figure skating

• World Men's Champion – Henning Grenander

  Golf

• British Open – Harry Vardon
• U.S. Open – Fred Herd

• British Amateur – Freddie Tait
• US Amateur – Findlay S. Douglas

  Horse racing

• 11 June — Willie Simms becomes the only African-American jockey to win all three races of the United States Triple Crown Races when he rides Sly Fox to victory in the Preakness Stakes.

• Grand National – Drogheda
• 1,000 Guineas Stakes – Nun Nicer
• 2,000 Guineas Stakes – Disraeli
• The Derby – Jeddah
• The Oaks – Airs and Graces
• St. Leger Stakes – Wildfowler

• Melbourne Cup – The Grafter

• Queen's Plate – Bon Ino

• Irish Grand National – Porridge
• Irish Derby Stakes – Noble Howard

• Kentucky Derby – Plaudit
• Preakness Stakes – Sly Fox
• Belmont Stakes – Bowling Brook

  Ice hockey

• 5 March — Montreal Victorias wins the Amateur Hockey Association of Canada championship and the Stanley Cup. It is the club's fourth AHAC championship in a row and second straight Cup title.

• 10 December — first championship ice hockey league, the Amateur Hockey Association of Canada disbands over a dispute to allow a new member in its senior league. The Canadian Amateur Hockey League is formed to replace it, from the clubs seceding from AHAC.

  Motor racing

• The 1898 Paris–Amsterdam–Paris Trail is run on 7–13 July over 1431 km and won by Fernand Charron driving a Panhard-Levassor in a time of 33:04:34. The race is in retrospect sometimes referred to as the III Grand Prix de l'ACF.

  Rowing

• 26 March — Oxford wins the 55th Oxford and Cambridge Boat Race

  Rugby league

• Dewsbury RLFC founded

• Championship – not contested
• Challenge Cup final – Batley 7–0 Bradford F.C. at Headingley Rugby Stadium, Leeds
• Lancashire League Championship – Oldham
• Yorkshire League Championship – Hunslet

  Rugby union

• 16th Home Nations Championship series is not completed

• London Irish founded

  Speed skating

• Men's All-round Champion – Peder Østlund

  Tennis

• Wimbledon Men's Singles Championship – Reginald Doherty defeats Laurence Doherty 6–3 6–3 2–6 5–7 6–1
• Wimbledon Women's Singles Championship – Charlotte Cooper Sterry defeats Louisa Martin 6–4 6–4

• French Men's Singles Championship – Paul Aymé defeats Paul Lebreton: details unknown
• French Women's Singles Championship – Françoise Masson wins: details unknown

• American Men's Singles Championship – Malcolm Whitman defeats Dwight F. Davis 3–6 6–2 6–2 6–1
• American Women's Singles Championship – Juliette Atkinson defeats Marion Jones 6–3 5–7 6–4 2–6 7–5