When it comes to history, it's fair to say the UTMB® has broken numerous records — in participation numbers, distances covered, wins and race times.
Participation records
The race is now capped at 10,000 participants across all events, but the number of applications keeps growing, with over 29,000 entries for the 2026 edition. For the flagship race, 2024 saw the highest number of starters, with 2,761 runners setting off from Chamonix. There's no doubt about it — the UTMB®'s popularity continues to grow and shows no signs of slowing down in the years ahead!
Victory records
Among the men, 2 runners share the record. Spanish legend Kilian Jornet and Frenchman François d'Haene have each claimed 4 victories at the UTMB®. Among the women, it's Briton Lizzy Hawker who holds the most wins with 5 victories, ahead of American Courtney Dauwalter with 3 wins.
The speed record
Comparing times across different editions requires caution, as the course has regularly changed due to weather conditions, which directly affects the winner's finishing time.
The fastest time ever recorded on the race remains that of Frenchman François D'Haene, in 19 hours 1 minute and 54 seconds at the 2017 edition — but this time was never ratified as an official record, as the course that year had been shortened due to adverse weather conditions. The same applies to Jim Walmsley (19h37'43", 2023), set on a route that was also modified.
The official record on the reference course is held by Kilian Jornet, with a time of 19 hours 49 minutes and 30 seconds, set in 2022. On the women's side, the record belongs to American Katie Schide, in 22 hours 9 minutes and 31 seconds, set in 2024.
The 2025 edition, run in extreme weather conditions, saw victory for Briton Tom Evans (19h18'58") in the men's race and New Zealander Ruth Croft (22h56'23") in the women's, though neither threatened the official records. Find the full list of past winners in our UTMB® roll of honour.
The youngest winner
In 2008, Kilian Jornet won his first UTMB at just 20 years old — running his very first ultra-trail. He crossed the line more than an hour ahead of the runner-up!
The oldest winner
In 2007, one year before Jornet's feat, Italian Marco Olmo claimed victory for the second consecutive year, at the age of 58.
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