London Marathon

The London Marathon is an annual marathon held in London, England. Founded by athletes Chris Brasher and John Disley in 1981, it is typically held in April, although it moved to October for 2020, 2021, and 2022 due to the COVID-19 pandemic. The largely flat course is set around the River Thames, starting in Blackheath and finishing at The Mall. Hugh Brasher (son of Chris) is the current race director and Nick Bitel its chief executive.

The race has several components: it has a mass race for the public, professional races for men and women long-distance runners, elite-level wheelchair races for men and women, and a 3-mile mini marathon event for under-17 athletes. In 2026, London Marathon Events launched a collaboration with Friday Night Lights, a paid-for 5km run at Battersea Park on the Friday prior to the marathon.

There is a significant charity running aspect to the marathon, with participants helping to raise over £1.4 billion since its founding.

Since 2006, the elite race has been part of the World Marathon Majors, which includes seven of the world's top level marathon races. The London Marathon has seen the marathon world record broken on seven occasions: Khalid Khannouchi broke the men's record in 2002, and Sabastian Sawe notably broke the 2 hours barrier in 2026, while women's records have been broken by Grete Waitz (1983), Ingrid Kristiansen (1985), Paula Radcliffe (2002, 2003, 2005) and Mary Jepkosgei Keitany (2017). The current elite course records are held by Sabastian Sawe (1:59:30 in 2026) and Paula Radcliffe (2:15:25 in 2003). The current wheelchair course records are held by Marcel Hug (1:23:44 in 2023) and Catherine Debrunner (1:38:24 in 2022). The race often has a title sponsorship, it has been branded the "TCS London Marathon" since 2022.