The 2025 UTMB is here! We can’t believe it, but this is iRunFar’s 15th year covering the race.
This year, the UTMB course is 174 kilometers (108 miles) long and gains almost 10,000 meters (32,500 feet) of elevation as it encircles the Mont Blanc massif from Chamonix, France, through Italy and Switzerland, before finishing back in Chamonix.
The race starts at 5:45 p.m. CEST (9:45 a.m. MDT in the U.S.) on Friday, August 29.
The UTMB course records are held by Katie Schide, who set the current women’s record at 22:09:31 in 2024, and Jim Walmsley, who set the men’s record at 19:37:43 in 2023. 
We’ll be livecasting the event over on iRunFar’s X feed with text and photo reports from all over the course. We’ll also be live blogging the same material below in this article.
A special thanks to Altra for making our coverage of UTMB possible!
Thanks also to Tailwind for its support of our UTMB coverage.
The start of the 2022 UTMB. Photo: iRunFar/Kirsten Kortebein
Resources for Following the 2025 UTMB
These resources will help you follow the race:
- iRunFar’s in-depth women’s and men’s previews
- iRunFar’s pre-race video interviews with Lin Chen, Ruth Croft, Ben Dhiman, Abby Hall, Emily Hawgood, and Ludovic Pommeret, with many more coming soon
- All of iRunFar’s UTMB resources in one place
- The UTMB website, which includes tabs for the course map and elevation profile, aid stations, technical data, and more
- The race administration’s live tracker for all entrants
- The race administration’s live video feed which covers the top runners
iRunFar’s Live Coverage of the 2025 UTMB
Here we’re live blogging the progress of UTMB, and sharing the exact same content as on our X feed. Enjoy viewing it right here or over there! Also, give it just a moment to load, once you arrive.
Additional UTMB Reading
While you’re following iRunFar’s coverage, catch up on your UTMB history:
Past UTMB Results Articles
- 2024 UTMB Results: A Course Record for Schide and a Surprise Win for Bouillard
- 2023 UTMB Results: Dauwalter and Walmsley Lead American Sweep
- 2022 UTMB Results: A Record for Jornet and a Runaway Win for Schide
- 2021 UTMB Results: D’haene Earns Fourth Win and Dauwalter a Course Record
- 2019 UTMB Results
- 2018 UTMB Results
- 2017 UTMB Results
- 2016 UTMB Results
- 2015 UTMB Results
- 2014 UTMB Results
- 2013 UTMB Results
- 2012 UTMB Results
- 2011 UTMB Results
- 2010 UTMB Results
Katie Schide after winning UTMB for the second time in 2024. Photo: iRunFar/Meghan Hicks
Post-Race Interviews from the 2024 UTMB
- Katie Schide (women’s champion)
- Vincent Bouillard (men’s champion)
- Ruth Croft (2nd place woman)
- Baptiste Chassagne (2nd place man)
- Marianne Hogan (3rd place woman)
- Joaquín López (3rd place man)
Post-Race Interviews with 2023 and Earlier UTMB Champions
- Rory Bosio (2013 and 2014)
- Jez Bragg (2010)
- Francesca Canepa (2018)
- Pau Capell (2019)
- Caroline Chaverot (2016)
- Courtney Dauwalter (2019, 2021, and 2023)
- François D’Haene (2012, 2014, 2017, and 2021)
- Lizzy Hawker (2010, 2011, and 2012)
- Kilian Jornet (2011 and 2022)
- Nathalie Mauclair (2015)
- Núria Picas (2017)
- Ludovic Pommeret (2016)
- Katie Schide (2022)
- Xavier Thévenard (2013, 2015, and 2018)
- Jim Walmsley (2023)
Vincent Bouillard after becoming the unlikely champion of the 2024 UTMB. Photo: iRunFar/Meghan Hicks
Other Articles of Interest
- A 2013 article about UTMB culture, which offers interesting then and now insight into this event’s evolution
- A gorgeous excerpt about UTMB from the book “Grand Trail” by Frederic and Alexis Berg, published in 2015
Ruth Croft running toward the front of the field near Champex-Lac during the 2024 UTMB. Photo: iRunFar/Eszter Horanyi
