Trail 100 Andorra by UTMB: The Complete Running Guide to the Pyrenean Principality

The Principality of Andorra has been a ski destination for decades and a tax-free shopping stop for even longer. The mountain running community has been building a different narrative here — and the Trail 100 Andorra by UTMB series is the infrastructure behind it.

The arithmetic makes the case immediately. Andorra covers 468 square kilometres between France and Spain, with an average altitude of 1,996 metres — the highest average elevation of any country in Europe. Its trail network crosses three summits above 2,700 metres. Its flagship UTMB World Series race sends athletes through 6,900 metres of elevation gain in a single effort. The terrain is not manufactured for dramatic running appeal; it is simply what Andorra is.

The UTMB-branded event runs each June from the village of Ordino, offering four distance options — the 21K, 50K, Trail 80K, and the flagship Ultra 105K — each using the same mountain infrastructure at different scales. This guide covers the 105K in detail with context for the shorter distances.

The Ultra 105K: Andorra's Most Complete Test

The Ultra 105K covers 105 kilometres and 6,900 metres of positive elevation gain — one of the more demanding single-day mountain efforts in the UTMB World Series below the 100-mile distances. It is not a course where pace management is optional.

The route connects all four of Andorra's staffed mountain refuges, passing through the principality's most remote terrain and requiring athletes to cross three major summit ridges.

Key Summit Crossings

Pic del Casamanya (~2,700m): The course's first major altitude challenge. Crossed in the opening third of the 105K. The approach from Ordino climbs through mixed forest before breaking onto the open ridge. The summit view covers the Valira del Nord valley north to the French border — and back down across the entirety of the route still to run.

Pic del Comapedrosa (2,942m — Andorra's highest point): The route's pivotal moment. The Comapedrosa crosses come in the race's middle section and represent the true separator between field positions. Above 2,500 metres for a sustained passage, with the summit often in cloud and the northwest ridge exposed to wind. Below the summit, the Refugi del Comapedrosa offers the highest staffed shelter on the route — a checkpoint that also functions as a weather-monitoring station. Missing the intermediate cutoff here ends an athlete's 105K.

Pic de Carroi (2,266m): The final summit before the descent toward Ordino. Arrives after 80-plus kilometres of accumulated effort and climbing. Technically easier than the Comapedrosa, but deceptive — the trail conditions on the upper approach can hold moisture from overnight cloud long after lower sections have dried.

Cutoff Times and Race Rules

The 105K runs a maximum allowed time of 30 hours. Intermediate cutoffs are enforced at each refuge checkpoint. Arriving late at the Comapedrosa section does not allow progression to the summit — the cutoff is there specifically because the descent from 2,942 metres in deteriorating light or weather is a safety issue rather than a race management question.

The Trail 80K runs the same major summits at 79km / 3,900m gain with a 21-hour maximum. It is the recommended entry point for runners building toward the 105K.

The Trail 50K and Trail 21K

Trail 50K (50km, 3,400m gain): A ratio of 68 metres per kilometre of climbing makes this significantly more demanding than a typical half-ultra on flatter terrain. The route avoids the Comapedrosa's highest section and runs through Andorra's lower and mid-altitude corridors. Recommended entry point for trail runners new to Andorra's altitude environment.

Trail 21K (21km, 1,800m gain): The shortest UTMB World Series option at this event. Still requires crossing significant altitude. Not a beginner trail race — the 86m/km gradient average demands technical fitness. But appropriate for mountain runners who want the UTMB World Series experience without the multi-hour commitment.

Andorra has no airport. Access is by road from two directions.

From Barcelona (3 hours): Take the C-17 north through Vic to Puigcerdà, then enter Andorra via the eastern border at La Farga de Moles. Barcelona El Prat (BCN) is the recommended long-haul gateway — connections from North America, the Middle East, and Northern Europe are extensive.

From Toulouse (3 hours): Follow the N20 south through Ax-les-Thermes to the Hospitalet-près-l'Andorre border. Toulouse-Blagnac (TLS) has strong European connections. The Toulouse route is typically less congested than the Barcelona approach on race weekends.

From Paris (9 hours door-to-door): Overnight TGV to Toulouse, then by car or bus onward. Not a day trip, but manageable for European runners who want to base locally.

By bus: Regular coaches run directly from Barcelona Sants and Toulouse Bus Station to Andorra la Vella (3 hours). Connections from the capital to Ordino run frequently — it is 15 minutes north on the main valley road.

Cross-border transfers on race weekend: Race organisers typically arrange shuttle services between the Barcelona and Toulouse border areas and Ordino. Check the event's athlete information pack for confirmed transport options.

Ordino: The Race Village

Ordino is the smallest of Andorra's seven parishes. It lacks the commercial development of Andorra la Vella and the ski resort infrastructure of Soldeu — which is precisely what makes it the right place for a mountain running event. The main street, the Sant Corneli i Sant Cebrià church, and the traditional stone architecture remain the village's defining features rather than duty-free electronics shops.

Race registration, expo, bib collection, start, and finish all operate from Ordino during the event. Athlete services — bag drop, crew access points, medical support, post-race food — expand across the village during race week. The UTMB World Series event village occupies the central area from Thursday through Sunday.

Accommodation: Ordino itself has limited hotel stock — a few small hotels and rural guesthouse options. The practical base for most athletes is La Massana (10 minutes south) or Andorra la Vella (20 minutes south). Book 3–6 months in advance for race weekend; the principality's hotel capacity is finite and fills across all the major events.

Altitude Preparation

Running in Andorra at altitude is not optional preparation — it is the event. The 105K crosses terrain above 2,900 metres. The 80K reaches 2,942 metres. Even the 21K operates at average altitudes that exceed most European mountain race courses.

For sea-level-based athletes: Arrive 3–4 days before race day. Include an easy 60–90 minute run above 1,800 metres each afternoon. The road from Ordino to the Coll d'Ordino (1,980m) is accessible on foot and provides a calibrated low-intensity acclimatisation run without full ascent effort.

For the 105K specifically: The Comapedrosa section crosses above 2,900 metres in the race's middle third — the window where altitude compounds most severely with systemic fatigue. Athletes who train at altitude regularly (based above 1,500m) have a measurable advantage on this section. Those who don't will experience it as approximately 20% additional perceived effort versus sea-level conditions on equivalent gradient.

Sleep at altitude: If possible, base in Ordino or La Massana rather than dropping to lower-elevation border towns for sleep. Every night at 1,300+ metres contributes to adaptation.

Mandatory Gear

The 105K and 80K equipment lists are non-negotiable and checked at registration. Essentials include:

• Wind and waterproof jacket with hood (Alpine weather in June can shift from warm to dangerous in under an hour above 2,500m)
• Emergency survival blanket and whistle
• Headlamp with minimum 200-lumen output and spare batteries (slower athletes will complete significant sections after dark)
• Minimum 1 litre water capacity between each staffed checkpoint
• First aid kit per the mandatory equipment list on the race website
• Trekking poles: Permitted on all distances. Strongly recommended for the Comapedrosa descent, where the trail surface transitions between rocky and grassy sections that benefit from pole support.

Weather on the Comapedrosa summit has included thunderstorms in multiple June editions. Race organisation monitors conditions via radio communication with refuge staff and can redirect athletes below the summit if electrical risk warrants.

The Tax-Free Advantage

Andorra is not an EU member and applies no VAT on most goods. Outdoor gear, running shoes, and technical apparel are typically 15–25% cheaper than equivalent French or Spanish retail prices. The main shopping avenue in Andorra la Vella (Avinguda Meritxell) has a Decathlon, multiple technical outdoor retailers, and specialist running shops.

Standard pre-race logistics: arrive 4–5 days before the race, complete gear checks in Andorra la Vella on day one or two, and spend the remaining days on altitude acclimatisation runs from Ordino. Do not expect to find race-day equipment in Ordino itself — the village's retail options are limited to the essentials.

Where to Eat and Recover

Ordino: The village has a handful of restaurants and a small supermarket. Post-race, the event's athlete food service in the finish area handles immediate recovery nutrition. For a sit-down meal, the Borda Raubert (traditional grilled meats and Andorran dishes) near the village centre is a consistent recommendation.

Andorra la Vella: The capital has full commercial food infrastructure — supermarkets, restaurant variety, and the familiar European high street. Useful for provisioning before the race and for recovery meals that go beyond sports nutrition.

Frequently Asked

Does UTMB Index carry over from the Trail 100 Andorra? Yes. The Trail 100 Andorra is a full UTMB World Series event. Points earned at the Ultra 105K (up to 100 UTMB Index points) count directly toward UTMB qualification. The race offers competitive qualification value — field sizes are manageable relative to the larger UTMB marquee events, and the points-to-finish ratio is strong.

When does registration open? UTMB World Series registration typically opens in the autumn preceding the race. The Andorra 105K historically sells out months before June. Check andorra.utmb.world for confirmed registration dates.

Can non-racers hike the 105K route independently? Yes. The route uses marked trails from Andorra's GR-7 network and the Camí dels Refugis, which connects the four mountain shelters as a multi-day hiking traverse. The classic independent version is a two- or three-day mountain hut traverse using the refuges as overnight stops. No race registration required.

What's the best way to track athletes on race day? The LIVETRAIL App provides live tracking and intermediate checkpoint timing for all distances. The andorra.utmb.world results page publishes finisher data in real time.

Where can I find training partners for Andorra altitude running? Connect with athletes already training in the principality via Find Athletes in Andorra on ZealZag.

For today's Trail 80K race coverage, see our Trail 100 Andorra UTMB Trail 80K field report.