Challenge du Montcalm.
The Marathon du Montcalm is the oldest race of the Challenge du Montcalm, climbing from Auzat in the Vicdessos valley onto two 3,000 m summits: the Montcalm and the Pique d'Estat, the roof of Ariège and Catalonia. Almost all of the climbing sits in one very long ascent, and the way home retraces the same route down the valley.
Challenge du Montcalm 2027: Course, Elevation & Route Profile
From the sports ground in Auzat the course first runs some nine kilometres up the valley to Lartigue, with a few short ramps that gain height without hurting yet. At Lartigue, at just under 1,200 m, the real mountain begins: past the Refuge du Pinet at around 2,230 m you gain more than 1,800 m in about nine kilometres to the summit of the Montcalm, averaging around 20 percent and finishing on steep, rocky high-mountain ground. The Pique d'Estat follows shortly after and is the turning point of the race.
The return takes the same ridge and the same trails back down to the Pinet and Lartigue, leaving about ten kilometres of gently falling valley running to the finish in Auzat. Close to three quarters of the course is therefore covered twice, once uphill and once downhill.
The race has been part of the Challenge since its first edition in 1990 and remains a classic Pyrenean summit run: one valley, one hut, two peaks above 3,000 m and the border ridge with Catalonia. In August the valley is warm while the summits can be cold, windy and in cloud, which is why the organiser requires an extensive mandatory kit list.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|---|---|---|---|---|
| km 0.3 | 1.2 km | 4.6 % | 9.5 % | +53 m | — |
| km 2.2 | 1.8 km | 9 % | 29.4 % | +160 m | Cat. 4 |
| km 4.7 | 0.9 km | 6.4 % | 16.2 % | +59 m | — |
| km 5.9 | 2.1 km | 11.9 % | 40.5 % | +252 m | Cat. 3 |
| km 9.3 | 9.1 km | 20.4 % | 49.7 % | +1,856 m | HC |
| km 18.9 | 0.8 km | 14.6 % | 36.3 % | +110 m | Cat. 4 |
| km 28.7 | 0.8 km | 8.3 % | 18.5 % | +64 m | — |
| km 33.2 | 0.7 km | 3.6 % | 17.7 % | +25 m | — |
Climb categories follow the road-cycling convention and rate the terrain itself (length and gradient) regardless of sport: Cat. 4 marks the easiest rated climbs, Cat. 1 the hardest, and HC (hors catégorie, “beyond categorization”) is reserved for the most brutal ascents. Short climbs below the Cat. 4 threshold stay unrated.
How to pace Challenge du Montcalm.
Start under control
The first nine kilometres to Lartigue are a run-in. Treat them like a road race and you pay for it on the long climb, because Lartigue is where the race is decided: nine kilometres of almost unbroken steep ascent, the last of it in thin air above 2,500 m. Pace this section by breathing and feel rather than speed, and expect the last 500 m of height to the Montcalm to go noticeably slower than the first.
Hold your rhythm
The cut-off at the Refuge du Pinet comes early, so walk up to the hut briskly but under control. The real trap is the descent. From the summit ridge to Lartigue you lose almost 1,900 m on rocky ground, and running it too fast on tired quads leaves nothing for the last ten kilometres along the valley.
Spend what is left
Descend carefully up high, eat again at the hut and keep something for the gentler valley section at the end, where a lot of time can still be made up.
Training plan for Challenge du Montcalm: 12-week build
Build the base
For most runners the Marathon du Montcalm takes between seven and eleven hours, against a twelve-hour limit. The effort is mostly aerobic but very unevenly spread: one long, very steep climb with a large strength component, then an equally long descent that mainly wears down the quads.
Train race pace
The decisive parts are the nine-kilometre ascent from Lartigue to the Montcalm and the way back. Train long mountain sessions with 1,500 to 2,000 m of continuous climbing, with poles if you plan to race with them, and get used to brisk hiking on 20 to 30 percent gradients. Equally important are long technical descents on tired legs, so that you can still run the last kilometres along the valley.
Rehearse the course
Altitude is the third factor. Above 2,500 m every movement gets harder, and in August the weather on the summit can turn quickly. If you can, spend a few days in the mountains before the race or train in high alpine terrain, and practise with your mandatory kit so that jacket, gloves and food work in cold and wind.
Arrive fresh
Your plan should therefore include mountain days with plenty of hiking, regular strength work for quads and calves and at least one or two very long mountain runs in the final two months. Flat speed sessions are of little value for this race.
Courses
Download the Challenge du Montcalm course as a GPX file for your watch or bike computer.
Let YOUB adapt your plan for Challenge du Montcalm dynamically
Ben connects your goal, the course, current load, recovery, and calendar. Your plan stays pointed at race day even when real life is not perfectly plannable.
Everything about Challenge du Montcalm.
How long is Challenge du Montcalm?
Challenge du Montcalm is 40 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.
How much elevation gain does Challenge du Montcalm have?
Challenge du Montcalm has around 2,755 m of elevation gain over 40 km. That affects pacing, muscular load, and preparation for late-race sections.
What is the route profile of Challenge du Montcalm?
Challenge du Montcalm is classified as Mountainous, averaging 72.1 vertical metres per kilometre. 6% of the route is flat, 17% climbs moderately (2 to 6%) and 30% is steeper than 6%.
What climbs does Challenge du Montcalm have?
The hardest climb of Challenge du Montcalm starts at kilometre 9.3, runs for 9.1 km at an average of 20.4% and gains 1,856 metres. Cycling-convention rating: HC. 8 climbs are mapped in total.
Is Challenge du Montcalm a loop course?
Yes, Challenge du Montcalm is laid out as a loop: start and finish are in the same place.
Is there a GPX file for the Challenge du Montcalm course?
Yes. The Challenge du Montcalm course is on this page as a free GPX download — ready to import into Garmin, Wahoo, Komoot, Strava or any other app that reads GPX.
How should I prepare for Challenge du Montcalm?
Preparation for Challenge du Montcalm should account for 40 km, 2,755 m of elevation gain, current training load, and available training time. An adaptive plan helps place key sessions without ignoring recovery and real life.
What pacing strategy works for Challenge du Montcalm?
The pacing strategy for Challenge du Montcalm should reflect 40 km, 2,755 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.
When does Challenge du Montcalm take place?
Challenge du Montcalm takes place on August 12, 2027.
Where does Challenge du Montcalm take place?
Challenge du Montcalm takes place in Auzat, France.
Which distances does Challenge du Montcalm offer?
Challenge du Montcalm offers 8 distances — Marathon du Montcalm: 40 km; PICaPICA: 109 km; PicAriège: 70 km; Défi du Montcalm: 138.5 km; KV du Sarrasi: 3.5 km; Trail des Novis: 25 km and 2 more.
How do I register for Challenge du Montcalm?
Registration runs through the organiser: challenge-du-montcalm.com. YOUB shows you the course, elevation profile and training plan for your preparation.
