Skyrace · Switzerland
Sat, 7 August 2027 · Sierre → Zinal, Valais
The 'Race of the Five 4000ers': a classic 31 km mountain race from the Rhône Valley to the Val d'Anniviers with 2,200 m of climbing and views of five 4,000 m peaks. 53rd edition in 2026.
2027 dates confirmed
The event window was checked against the organizer website. Individual distance dates and start times remain planning estimates until the detailed schedule is published.
The mapped GPX is carried forward from 2026 until the new course is verified. Use it for course research, then re-check before race day.
Date sourceEntry · 31K · 2027 edition
The entry facts on file are for the 2026 edition (by draw (lottery)), checked 27 Sep 2026. Dates, method and places for 2027 can differ.
From the organizer's page, checked 27 Sep 2026. TrailSplits does not know whether you have a place; the organizer is the final word.
Sierre-Zinal is a skyrace scheduled for Sat, 7 August 2027 in Sierre → Zinal, Valais, Switzerland. TrailSplits currently includes one mapped course for this event, with course maps, elevation profiles, weather context, and pacing tools for the uploaded GPX data.
How to get a place: Pre-registration on one day, then a draw if demand exceeds places (runners, tourists and juniors). For the 2026 (53rd) edition pre-registration was 2 April 2026 from 12:00 to 18:00, results by email on 3 April 2026 and payment by 10 April; packages and a waiting list are the other routes in. 2027 dates are not published. Organizer's page, checked Sunday 27 September 2026.
TrailSplits is a free, independent route & pacing companion — not the official race. Visit the official Sierre-Zinal site →
Racing more than once next year? Add 31K to a season and see whether your races work together.
Inspect the official course track on a topographic map, through its elevation profile, or in 3D.
› running direction two lines: out and back on the same path kilometres
Selected distance
Vert-focused blueprint with route-finder links into the Planner.
Prepare and return
Keep this course, its training plan, calendar and future course updates together in your private My Races page. Saving does not publish your workouts, pace or progress.
Sierre-Zinal 31K — 2025 edition. 4500 finishers.
Estimated finish-time percentiles, modeled from the 2025 winning (2h 25m) and median (4h 45m) times — a guide, not official splits.
Race route lab
Open the official course in Planner, then choose a nearby start point to build a shorter loop that matches the course demand. This course averages about 67 m climb per km.
Expected Sat, 7 August 2027
Send to your watch
Get the official course as a clean GPX or a Garmin TCX course, with step-by-step instructions to load it onto a Garmin, COROS, Suunto, Wahoo, or Komoot — free, no account needed.
Compare your training
See how faithfully your rehearsal route matches the real race. The official course for 31K loads as Route A — upload your training route to compare distance, elevation gain, estimated time, and how much of the course you actually cover.
Course analysis
See the 31K course broken into its major climbs and descents in order — length, gain, average grade, and steepness — so you know where the crux is and how to pace and fuel it.
Race-week reminders
A free browser notification in the final week — the course crux, the weather window, and loading the GPX onto your watch. No app, no email, no account.
Sierre-Zinal 2027 is expected on Sat, 7 August 2027 in Sierre → Zinal, Valais. Check the official race site for registration deadlines and final details.
31.2 km with 2,091 m climb. The longest course is 31.2 km with about 2,091 m of vertical gain — a demanding mountain course.
The 31K course has a 7.5-hour cut-off, an average of 14.4 min/km to finish in time. TrailSplits' cut-off pacer shows the buffer at each aid station.
Yes. TrailSplits gives you the course map, an interactive elevation profile, a 3D flyover and a downloadable GPX for every mapped distance — free and with no sign-up.
Each distance has a free, course-specific 16-week training plan built around its distance, vertical gain and cut-offs, plus a pace and cut-off calculator.
No. TrailSplits is a free, independent route and pacing companion. For registration and official rules, visit https://www.sierre-zinal.com.
Load the GPX directly into TrailSplits for surface analysis and terrain intel.
Install TrailSplits — a free app you add straight from your browser — and download the 31K course to your phone. Explore the route and elevation offline before race day, then follow it with no signal on the day. No app store, no account, no subscription.