46th London Marathon
Sabastian Sawe and Tigst Assefa, the men's and women's winners
Venue	London, England
Date	26 April 2026
Champions
Men	Sabastian Sawe (1:59:30)
Women	Tigst Assefa (2:15:41)
Wheelchair men	Marcel Hug (1:24:13)
Wheelchair women	Catherine Debrunner (1:38:29)
← 2025 2027 →

The 2026 London Marathon was the 46th running of the London Marathon, and took place on 26 April 2026. The race was the third of seven World Major Marathon events and was a platinum label race.^[1] The route featured three separate starting points — one by Greenwich Park and two on Blackheath common — and ended on The Mall. Notable landmarks en route included Cutty Sark, Tower Bridge, Canary Wharf and Buckingham Palace.^[2] The race was historic for several reasons: it was the first marathon completed in under two hours, with Sabastian Sawe achieving a time of 1:59:30. The elite men's runner-up, Yomif Kejelcha, also finished the race in under two hours, recording the fastest non-winning marathon time and the fastest marathon debut in history.^[3] The race was the fastest marathon in history by some margin as third-place finisher Jacob Kiplimo also finished under the previous world record.^[4] In the women's elite field, Tigst Assefa set a new world record for a women-only marathon.

The women's race was originally announced to include Olympic champion Sifan Hassan and world marathon champion Peres Jepchirchir, but both runners withdrew due to injury, leaving Tigst Assefa, Joyceline Jepkosgei, and Hellen Obiri as the headliners. Tigst said in the pre-race press conference that she was fitter than she was last year, when she won the race and set a 2:15:50 women's-only world record.^[5]

In the men's race, the debut of Yomif Kejelcha was highly anticipated as the Ethiopian was coming off both a successful track career and several fast half marathon performances. Sabastian Sawe, the defending champion, was viewed as trustworthy given that he had voluntarily subjected himself to increased drug testing paid for by his sponsor Adidas in the lead-up to the race. However, he revealed during the pre-race press conference that he had been dealing with a back injury before the race. 5,000 m and 10,000 m world record holder Joshua Cheptegei was also entered in the race, but he had struggled in his three career marathons before London.^[5]

The event received 1,133,813 ballots for entry. It was a new world record for entrants to a marathon, surpassing the 840,318 applications from the 2025 London Marathon.^[6]

By five kilometres into the men's race, a group of six runners had separated from the rest of the pack. Sawe, the defending champion, was joined by Paris Olympic champion Tamirat Tola, world cross country champion Jacob Kiplimo, marathon debutant Yomif Kejelcha, Deresa Geleta, and Amos Kipruto.^[7] They were led by a group of pacers through the half marathon in one hour and 29 seconds, aligned with the 60:30 target pace.^[8]

The pacers were able to block the wind until after 25 kilometres (16 mi), at which point Sawe sped up (contrary to expectations that runners would run faster when behind a pacesetter). 18 miles into the race, only Sawe and Kejelcha remained in the lead with Kiplimo trailing. At 30 kilometres (19 mi), the pair was still only at a projected 2:01 finish, but Sawe split a 13:54 5K run from 30 to 35K to bring the pace down to 2:00:29. Sawe's 24th mile time of 4:12 was the fastest individual mile split recorded in any marathon, but Kejelcha remained in contact with the lead.^[7]

Kejelcha was finally dropped after the 25th mile, leaving Sawe by himself as he ran the stretch from 40 km to 42.195 km in 5 minutes and 51 seconds. Both Sawe and Kejelcha broke the two-hour marathon barrier, while Kiplimo broke the previous world record time of 2:00:36 in 3rd place. All of the top five runners ran a personal record time over the marathon distance.^[7]

In the women's race, former marathon world record holder and defending champion Tigst Assefa broke away from the elite field early along with Hellen Obiri, Joyciline Jepkosgei, and Catherine Reline Amanang'ole. Obiri was primarily known for her performances on slower marathon courses like the Boston Marathon and New York City Marathon and was debuting on the London course, while Jepkosgei was the 2021 London Marathon winner.^[9]

By 15 kilometres (9.3 mi), only Tigst, Obiri, and Jepkosgei remained. They ran the half marathon in 1:06:12, half a minute faster than Tigst's split the previous year and only two minutes slower than the 1:04:16 split run during Ruth Chepngetich's 2:09:56 mixed-gender world record run.^[9][10]

The trio slowed in the following miles, running every 5 km split after 20 km in over 16 minutes. Nonetheless, Tigst maintained the pace enough to break her own women's-only world record by nine seconds, finishing in 2:15:41. Obiri and Jepkosgei also ran under 2 hours and 16 minutes, marking the first time that three women had broken the 2:16 barrier in the same race.^[11]

59,830 runners finished the race, setting a new Guinness World Record for the largest marathon and beating the 2025 New York City Marathon's 59,226 finishers. Though not yet officially announced, the 2027 London Marathon had been rumored to be the first World Marathon Major to separate into two races held over two days to accommodate larger crowd sizes.^[12] An estimated 800,000 spectators attended the race live in London.^[13]

Sawe set a world record in the men’s marathon, and Tigst set a world record for a women-only marathon. ^[14]

The 2026 London Marathon featured several runners dressed up in costumes, running for the sake of charitable causes, while other were trying to raise awareness to illnesses. Patrick Barkham finished the race in a badger costume to raise funds for wildlife conservation and in memory of his late father. Fiona Betts finished the race in a helicopter costume in support of air ambulance services. Jonathan Acott, a cancer survivor tried breaking a world record while dressed as a knight in armour, while raising fundraising for his charity. Other participants dressed up in a costumes like a polar bear, a Freddy Fazbear costume, a two-person elephant and a giant testicle costume.^[17]