Ronda dels Cims 2026 Guide: Andorra's extreme 170 km ultra

The Ronda dels Cims format is uncompromising. Over 170 km, the cumulative positive elevation gain exceeds 13,000 m — an average of nearly 77 m of climbing per kilometre. That ratio places the race among the most mountainous ultras in the world, alongside Tor des Glaciers and the most demanding UTMF formats. The vast majority of the course runs well above treeline, across high mountain terrain, rocky summits and col crossings that leave no room for compromised fitness or underspecified kit.

That context demands a completely different race logic from a standard trail ultra. Pace is measured in elevation managed per hour rather than in kilometres run. The non-runnable proportion of the course is substantial, and poles are not optional — they are essential. Sleep management, mental preparation for long solo hours at altitude and the ability to recover between major climbs are the real qualities the race reveals.

Preparing properly for Ronda dels Cims requires at least a year of progressive build-up. Useful training blocks include long high-elevation days, back-to-back mountain weekends, solid navigation and map-reading skills, and night sessions to rehearse the long hours without natural light. The race imposes demanding mandatory kit, typically including a full survival list, a multi-hour food reserve and an autonomous communication device. Check the official list on rondadelscims.ad and test every item exhaustively before the start.

Logistics centre on Andorra la Vella. Andorra is accessible by road from France via the RN22 through Ariège and the Envalira tunnel, or from Spain via the CG1 from La Seu d'Urgell. There is no railway station in Andorra; the nearest public transport connections are coaches from Toulouse via L'Hospitalet-près-l'Andorre, or from Barcelona and Lleida on the Spanish side. For runners travelling from further away, driving remains the most practical option. Accommodation in Andorra la Vella includes hotels, apartments and residences, generally at lower prices than nearby French and Spanish ski resorts.

Logistics planning must also account for the race's specific resupply structure. Andorra is a small country but the mountains are severe: aid stations are spread apart and a large portion of the course is self-sufficient. The official Ronda dels Cims site is the only authoritative source for bib pickup schedules, drop bag rules and assistance zone information. The TrailCompanion Prep helps organise all these constraints into a structured week-by-week plan.

Barcelona and Toulouse are the easiest airport options. In both cases, the final section is by road or coach into Andorra: there is no railway in the principality, so the real logistics begin after the flight.

If you drive, treat the journey as part of the race project. Mountain roads, weekend traffic and travel fatigue can all chip away at freshness before bib pickup even starts.

Andorra la Vella and Escaldes are usually the simplest bases for sleeping, eating and recovering. Depending on the edition setup, Ordino can also become the best practical base if the event centre is concentrated there.

The best pattern is to lock a stable pre-race base early and keep one flexible post-finish night. On an ultra this long, post-race recovery logistics are easy to underestimate and expensive to improvise.

Ronda dels Cims is one of the purest ultra challenges in existence. If you arrive with a year of serious preparation, validated kit, logistics around Andorra la Vella already solved, and an honest understanding of what the profile demands, this race can become one of the most significant objectives of your running career.