FR Join the betaJoin
Trail & ultra · Independent (GTWS stop in 2026) · ★ Iconic

Sierre-Zinal 2027

Saturday, August 7, 2027

🇨🇭 Sierre → Zinal · Switzerland

Add to my calendarOfficial website ↗

The events

Sierre-Zinal 31 km

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 May 17, 2027
Trail of 3h30 to 5h3016 weeks · ideal start April 19, 2027
Trail of 5h30 to 8h20 weeks · ideal start March 22, 2027
Ultra of 8 to 16h24 weeks · ideal start February 22, 2027
Ultra over 16h24 weeks · ideal start February 22, 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 Sierre-Zinal 2027?

Sierre-Zinal 2027 takes place on Saturday, August 7, 2027, in Sierre → Zinal (Switzerland). 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

🇨🇭 Sierre → Zinal · Switzerland

Same weekend

Fri30JulTour de France Femmes avec Zwift🇫🇷 Starts in the United Kingdom · France★ IconicPros only — to followWomen's Grand Tour, 9 days (stages…Thu5AugKAT100 by UTMB🇦🇹 Fieberbrunn · Austria100 MilesEndurance TrailFri6AugGauja Trail by UTMB🇱🇻 Cēsis · Latvia100 K50 KSat7AugIRONMAN Tallinn🇪🇪 Tallinn · EstoniaFull distance 226 km

Trail: around the same time

Sat5JunMozart 100 by UTMB🇦🇹 Fuschl am See · Austriamozart 100mozart UltraSun6JunZegama-Aizkorri Mendi Maratoia🇪🇸 Zegama · Spain★ IconicMountain marathon 42 kmThu10JunTrail 100 Andorra by UTMB🇦🇩 Ordino · AndorraUltra 105KTrail 80KThu17JunZugspitz Ultra Trail by UTMB🇩🇪 Garmisch-Partenkirchen · GermanyZUT100Ultra trail

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).