Difficulty Index

Every race we cover, ranked by how hard it really is.

Our 0–10 difficulty score factors in elevation, hill placement, weather, altitude, turns and surface. See the methodology →

Marathon Country Date Elev Difficulty
Chicago Marathon United States 11 October 2026 45m 1.4/10
Houston Marathon United States 17 January 2027 65m 1.4/10
Chevron Houston Marathon United States 17 January 2027 64m 1.4/10
Amsterdam Marathon Netherlands 18 October 2026 55m 1.6/10
Valencia Marathon Spain 06 December 2026 62m 1.6/10
Jacksonville Marathon United States 12 December 2026 43m 1.6/10
Berlin Marathon Germany 27 September 2026 58m 1.8/10
Munich Marathon Germany 11 October 2026 90m 1.8/10
Dubai Marathon United Arab Emirates 17 January 2027 11m 1.8/10
Indianapolis Monumental Marathon United States 07 November 2026 83m 1.8/10
London Marathon United Kingdom 25 April 2027 85m 1.9/10
Seoul Marathon South Korea 21 March 2027 93m 1.9/10
Budapest Marathon Hungary 11 October 2026 85m 1.9/10
Cologne Marathon Germany 04 October 2026 85m 2.0/10
Copenhagen Marathon Denmark 09 May 2027 75m 2.0/10
Biwako Marathon Japan 14 March 2027 95m 2.0/10
Beijing Marathon China 18 October 2026 100m 2.1/10
Tunis Marathon Tunisia 06 December 2026 96m 2.1/10
Shanghai Marathon China 06 December 2026 75m 2.2/10
Vienna City Marathon Austria 18 April 2027 110m 2.2/10
Edinburgh Marathon United Kingdom 30 May 2027 101m 2.2/10
Frankfurt Marathon Germany 25 October 2026 95m 2.3/10
Manchester Marathon United Kingdom 18 April 2027 108m 2.3/10
Disney World Marathon United States 10 January 2027 69m 2.4/10
Sacramento Marathon United States 06 December 2026 138m 2.4/10
Nagoya Women's Marathon Japan 14 March 2027 125m 2.5/10
Columbus Marathon United States 18 October 2026 115m 2.5/10
Warsaw Marathon Poland 27 September 2026 105m 2.6/10
Marrakech Marathon Morocco 31 January 2027 133m 2.6/10
Detroit Marathon United States 18 October 2026 95m 2.6/10
Toronto Waterfront Marathon Canada 18 October 2026 115m 2.7/10
Eugene Marathon United States 25 April 2027 127m 2.7/10
Hamburg Marathon Germany 25 April 2027 135m 2.8/10
Milwaukee Marathon United States 10 April 2027 143m 2.9/10
Barcelona Marathon Spain 14 March 2027 135m 3.0/10
Lagos City Marathon Nigeria February 2027 (expected) 44m 3.0/10
Lincoln Marathon United States 02 May 2027 136m 3.0/10
Buenos Aires Marathon Argentina 20 September 2026 147m 3.1/10
Taipei Marathon Taiwan 20 December 2026 94m 3.2/10
Osaka Marathon Japan 28 February 2027 145m 3.3/10
Brighton Marathon United Kingdom 04 April 2027 158m 3.3/10
Grandma's Marathon United States 19 June 2027 145m 3.4/10
Madison Marathon United States 15 November 2026 162m 3.4/10
Istanbul Marathon Turkey 01 November 2026 178m 3.6/10
Twin Cities Marathon United States 04 October 2026 164m 3.6/10
Mountain to Beach Marathon United States 18 April 2027 153m 3.6/10
Beirut Marathon Lebanon 29 November 2026 135m 3.8/10
Philadelphia Marathon United States 22 November 2026 193m 3.8/10
Rome Marathon Italy 17 March 2027 190m 3.9/10
Cleveland Marathon United States 16 May 2027 164m 3.9/10
Des Moines Marathon United States 18 October 2026 204m 3.9/10
Santiago Marathon Chile 16 May 2027 202m 4.0/10
Miami Marathon United States 31 January 2027 90m 4.0/10
Rio de Janeiro Marathon Brazil 30 May 2027 138m 4.3/10
Long Beach Marathon United States 11 October 2026 132m 4.3/10
Paris Marathon France 11 April 2027 225m 4.4/10
Tokyo Marathon Japan 01 March 2027 195m 4.4/10
Dublin Marathon Ireland 25 October 2026 216m 4.5/10
Prague Marathon Czech Republic 02 May 2027 215m 4.5/10
Mumbai Marathon India 17 January 2027 134m 4.5/10
Casablanca Marathon Morocco 25 October 2026 174m 4.7/10
Marine Corps Marathon United States 25 October 2026 220m 4.8/10
Amazing Thailand Marathon Thailand 29 November 2026 130m 4.8/10
Dallas Marathon United States 13 December 2026 235m 4.8/10
Oklahoma City Memorial Marathon United States 25 April 2027 204m 4.8/10
Kansas City Marathon United States 17 October 2026 227m 4.8/10
Stockholm Marathon Sweden 29 May 2027 215m 4.9/10
Honolulu Marathon United States 13 December 2026 141m 5.0/10
Singapore Marathon Singapore 06 December 2026 120m 5.0/10
Oakland Marathon United States 21 March 2027 240m 5.0/10
Boston Marathon United States 19 April 2027 265m 5.1/10
Salt Lake City Marathon United States 24 April 2027 278m 5.1/10
Jakarta Marathon Indonesia 13 June 2027 156m 5.3/10
New York City Marathon United States 01 November 2026 275m 5.4/10
Athens Marathon Greece 08 November 2026 335m 5.5/10
St. Louis Marathon United States 03 April 2027 259m 5.5/10
Hong Kong Marathon Hong Kong 17 January 2027 254m 5.6/10
Pittsburgh Marathon United States 02 May 2027 263m 5.7/10
Seattle Marathon United States 29 November 2026 270m 5.7/10
Cape Town Marathon South Africa 27 May 2027 265m 5.9/10
Los Angeles Marathon United States 07 March 2027 290m 6.0/10
Denver Marathon United States 16 May 2027 215m 6.0/10
Portland Marathon United States 04 October 2026 290m 6.0/10
Austin Marathon United States 14 February 2027 319m 6.1/10
Accra Marathon Ghana 26 October 2026 225m 6.4/10
Sydney Marathon Australia 30 August 2026 313m 6.5/10
Madrid Marathon Spain 25 April 2027 410m 6.5/10
Rock 'n' Roll Nashville Marathon United States 24 April 2027 363m 6.6/10
San Francisco Marathon United States 26 July 2026 416m 6.7/10
Atlanta Marathon United States 07 March 2027 465m 6.8/10
Mexico City Marathon Mexico 30 August 2026 95m 6.9/10
Big Sur Marathon United States 25 April 2027 527m 6.9/10
Oslo Marathon Norway 12 September 2026 339m 7.0/10
Rock 'n' Roll San Diego Marathon United States 06 June 2027 268m 7.0/10
Helsinki City Marathon Finland 08 May 2027 360m 7.3/10
Kuala Lumpur Marathon Malaysia 04 October 2026 316m 8.0/10