FR Join the betaJoin
Trail & ultra · Independent (UTMB World Series partner) · ★ Iconic

Western States Endurance Run 2027

From June 26 to 27, 2027

🇺🇸 Olympic Valley → Auburn (California) · United States

Add to my calendarOfficial website ↗

The events

100 miles

Elite athletes start: a pro podium will be published.

When to start training

In trail running, training time depends on your finish time, not only on the distance. For this edition:

Trail under 3h3012 weeks · ideal start April 5, 2027
Trail of 3h30 to 5h3016 weeks · ideal start March 8, 2027
Trail of 5h30 to 8h20 weeks · ideal start February 8, 2027
Ultra of 8 to 16h24 weeks · ideal start January 11, 2027
Ultra over 16h24 weeks · ideal start January 11, 2027
Your plan up to race day, in CadeviaThe Coach builds every week until the race, around your days and your level.Join the beta →

Tools for this race

Your hill pace, converted to flatWhat to drink and eat during exerciseYour 7 heart rate zonesYour maximal aerobic speed and training paces

Frequently asked questions

When is Western States Endurance Run 2027?

Western States Endurance Run 2027 takes place from June 26 to 27, 2027, in Olympic Valley → Auburn (California) (United States). Date read on October 15, 2026 from its official source.

Does Cadevia organise this race?

No. Cadevia is a training app: we read the dates from the official sources to help you choose and prepare your race. Entries are handled by the organiser.

Where

🇺🇸 Olympic Valley → Auburn (California) · United States

Same weekend

Wed23JunLa Sportiva Lavaredo Ultra Trail by UTMB🇮🇹 Cortina d'Ampezzo · ItalyLavaredo 120KLavaredo 80KSun27JunIRONMAN 70.3 Elsinore🇩🇰 Helsingør (Elsinore) · Denmark70.3113 kmSun27JunIRONMAN Frankfurt🇩🇪 Frankfurt · GermanyFull distance 226 kmSun27JunIRONMAN Les Sables d'Olonne-Vendée🇫🇷 Les Sables-d'Olonne · FranceFull distance 226 km

Trail: around the same time

Fri23AprGrand Raid Ventoux by UTMB🇫🇷 Malaucène · France100M (UGP)100K (GEV)Fri30AprOh Meu Deus by UTMB🇵🇹 Seia · Portugal100M100KThu13MayHOKA Ultra-Trail Australia by UTMB🇦🇺 Katoomba (Blue Mountains, NSW) · Australia★ IconicUTAMilerUTA100Thu13MayTrail Alsace by UTMB🇫🇷 Obernai · FranceUTDC - 100MUTDP - 100K

Where this comes from

Date and place read on October 15, 2026 from its official source.

Cadevia does not organise this race. Spotted a mistake? Tell us.

Places: GeoNames (CC BY 4.0) and © OpenStreetMap contributors (ODbL). Base map: Natural Earth (public domain). Logos belong to their organisers and are shown so each race is easy to recognise — Cadevia has no link with them, and any logo is removed on request. Flags: flag-icons (MIT licence).