Sierre-Zinal 2027: preparation, logistics and gear guide

The 2027 edition is run on Saturday 2027-08-07, from Finges in Sierre to Zinal. The date is not arbitrary: the regulations state that the race takes place each year on the eve of the second Sunday in August, and the site banner writes it on every page, "Sierre-Zinal 2027, Saturday 7 August".

The regulations give the figures the course page does not carry: approximately 31 km, 2,200 m of ascent and 1,100 m of descent. The course page presents it as "la Course des cinq 4000", "one of the most beautiful mountain races in the world" and the oldest of Europe's great mountain events — it gives the nickname without explaining where it comes from. The route differs by category: "Touristes" choose freely between two start itineraries, via Niouc or via the Chapelle Saint-Antoine, while "Coureurs" may only take the Niouc route.

The two categories are not two standards, they are two races on the same day. Touristes start in the dark, between 04:45 and 06:15, in six blocks; Coureurs start late in the morning, the women's start at 10:30 and the mixed starts from 11:00 to 11:20. Both must clear the same three mandatory checkpoints, but at different closing times, and share the same finish closing in Zinal.

This guide gathers what the official site publishes as of 2026-09-13. The regulations are by far the richest page: they carry the figures, the timings, the prohibitions and the quotas. Some of the detail pages still describe the 2026 edition — that is flagged where it matters.

Sierre-Zinal is a climbing race: 2,200 m of ascent against 1,100 m of descent over 31 km, a course that finishes 1,100 m higher than it begins. The specific work is therefore the long sustained climb, far more than volume. ⚠️ The organiser publishes no profile in text: where exactly the climbing is concentrated appears on none of the pages consulted, and this guide does not invent it. The three compulsory control points — Chandolin at km 12, Tignousa at km 16, Hôtel Weisshorn at km 20 — at least say where the organiser places its checkpoints.

Train the descent as much as the climb. The 1,100 m of descent do not cancel themselves out because they are half the climb: in the race they come on legs already damaged. Technical descents at the end of a long run, when fatigue is there, beat fresh ones.

Do the cut-off arithmetic; they are times of day, not durations. In the Coureurs category, Chandolin closes at 14:10:59, Tignousa at 14:40:59 and the Hôtel Weisshorn at 15:20:59, for a start between 11:00 and 11:20: that leaves roughly three hours to reach Chandolin. In the Touristes category, starting between 04:45 and 06:15, Chandolin closes at 10:40:59. A runner in the last block therefore has less margin than one in the first.

Two rules to build into training rather than discover on the start line: poles are forbidden on every course, so the climb must be prepared without them; and so are headphones. Finally, the race climbs above 2,000 m and the regulations note that no equipment is imposed — it is up to the runner to match clothing to the weather, at their own risk.

Places are capped by category: 4,000 participants for "Touristes", 2,100 for "Coureurs", 250 for the Chandolin-Zinal junior race and 500 for the children's race in Sierre. The organiser reserves the right to change these numbers from year to year, and may reserve a free pre-registration system for residents of the Sierre district, with a lottery if the quota is exceeded.

Entry costs 110 CHF for the Touristes and Coureurs categories, 30 CHF for the junior race and 15 CHF for the children's race, excluding options. It is personal, firm and final, with no refund possible for any reason. Moving from the Touristes category to the Coureurs category, or the reverse, is strictly forbidden. A bib transfer is possible up to and including 21 July, for 25 CHF, through a dedicated form; from 22 July, no name changes at all.

Two paid options can be added to the entry: breakfast, from 15 CHF, and accommodation in Sierre on the eve, from 25 CHF, mattress included — Coureurs in the shelters of the Restaurant le Bourgeois, Touristes in the Goubing gymnasium. An accommodation desk staffs the Sierre town hall from 13:30 to 18:30 on the Friday before the race.

Bibs are collected at the Sierre town hall: the day before from 13:30 to 19:30, and on race day from 03:00 to 06:00 then from 08:00 to 11:00. For the junior race, the day before at the same hours or on the Saturday from 08:00 at the Chandolin start. A third party may collect a bib for a relative or friend with proof of their entry.

Before reaching the line, passing through the welcome zone is compulsory — it sits between the TCS roundabout and the A9 roundabout — and access is then by block. Blocks are assigned by the timekeeper according to estimated time and previous results, communicated a few days ahead, and no block change is allowed on pain of disqualification.

The organisation runs free shuttles between the Restaurant le Bourgeois, in central Sierre, and the adult race start, on the morning of the race. For Touristes they run every ten minutes from 03:30 to 04:30 for blocks 1 to 3, then from 05:05 to 05:45 for blocks 4 to 6; for Coureurs, every ten minutes from 09:30 to 10:45. No shuttle is provided for the Chandolin-Zinal junior race.

From the Val d'Anniviers, special buses climb to the start on race morning, at 12 CHF per person, with no general or half-fare travel cards accepted; places are limited. The first leaves Zinal Télécabine at 03:00, via Ayer and Vissoie, a second at 04:15 with fewer seats. In the other direction, entry includes transport of personal belongings from Sierre to Zinal. Watch out too for the road between Finges and the Val d'Anniviers, closed intermittently during the starts — access remains possible at all times via Vercorin.

The simplest option is the organisation's own: accommodation in Sierre on the eve, from 25 CHF, mattress included. Coureurs are housed in the shelters of the Restaurant le Bourgeois, Touristes in the Goubing gymnasium. It is a dormitory, not a room — but it is minutes from bib collection and the shuttles, which matters when the first block's shuttle leaves at 03:30.

The option is paid in advance at entry, to be validated. A desk gives information and takes payment at the Sierre town hall from 13:30 to 18:30 on the Friday; those arriving later can go straight to the accommodation, where a security officer handles payment and shows people to their beds. The breakfast option, from 15 CHF, is taken the same way.

Sierre-Zinal fits into a morning, but everything about it is decided beforehand: the category chosen at entry and impossible to change afterwards, the block assigned by the timekeeper, the shuttle caught on time, and three cut-offs read off the clock on the wall. Open a TrailCompanion Prep from this guide to date those decisions and follow the closing times station by station.