50 km – 3000 m D+ – 800 runners
mis à jour le 3 décembre 2025
Warning: the course has many parts on mountain paths where it is not easy to run, especially towards the Pas de la Crabe and the col de Bastanet.
Description
Start Thursday 7h00 from the Pla d'Adet. Uphill to Col de Portet on ski slopes. Entering the Néouvielle area with a descent to the lac de l'Oule.
Direction the lac de Port Bielh going uphill through the fir forest of Bastanet and reaching the Hourquette Nère.
After one kilometer downhill, a tough climb to the Pas de la Crabe and his scree. Caution is required uphill and downhill. Arriving to the aid station of la Mongie on ski slopes.
Tough up and down to go through the feared Serpolet. After that a great push through the rocks to pass the aid station at the Campana de Cloutou hut and reach the col de Bastanet.
Descent towards the lacs de Bastan and a near flat trail takes you back to les Merlans. Last push to col de Portet and long descent to the finish line in Vielle Aure.
The bests could finish under 5 hours. Time barriers are calculated for a 16 hours finish.
Aid stations
Actual food may differ from this indicative list and will be updated regularly on the website and during the briefing.
List in the timetable at the bottom of the page with the legend below
| Icon | Expected content |
 |
Still water |
 |
Sparkling water and cola |
 |
Soup |
 |
Sausage or raw ham, dried fruit, savory cakes, cake |
 |
Oranges, bananas, bread, cheese, ham |
 |
Camp bed and blankets |
 |
Cold shower |
 |
Repatriation bus |
The race times are as follows, starting thursday
 |
Km | Alt |  |
D+ | D- |  |
 |
 |
| Pla d’Adet | 0,0 | 1594 | 0 | 0 | 7:00 | 7:00 | ||
| Col de Portet | 6,1 | 2214 | 700 | 80 | 7:41 | 8:45 | ||
| Restaurant Merlans | 7,6 | 2037 |     |
700 | 257 | 7:46 | 8:59 | 9:00 |
| Cabane de la Lude | 10,3 | 1835 | 700 | 459 | 7:58 | 9:30 | ||
| Hourquette Nère | 15,9 | 2465 | 1330 | 459 | 8:42 | 11:24 | ||
| Intersection Agalops | 16,9 | 2156 | 1330 | 768 | 8:48 | 11:42 | ||
| Pas de la Crabe | 17,8 | 2477 | 1651 | 768 | 9:04 | 12:27 | ||
| Piste des Quatre Termes | 18,6 | 2300 | 1651 | 945 | 9:10 | 12:42 | ||
| La Mongie | 23,4 | 1735 | |
1651 | 1510 | 9:31 | 13:40 | 13:45 |
| Serpolet | 24,7 | 2070 | 1986 | 1510 | 9:49 | 14:31 | ||
| Les Passet | 26,4 | 1680 | 1986 | 1900 | 10:01 | 15:06 | ||
| Refuge de Campana de Cloutou | 30,8 | 2215 | |
2548 | 1927 | 10:40 | 16:59 | |
| Col de Bastanet | 32,9 | 2509 | 2842 | 1927 | 11:00 | 17:59 | ||
| Refuge de Bastan | 34,8 | 2248 | 2842 | 2188 | 11:12 | 18:37 | ||
| Restaurant Merlans | 38,7 | 2037 |  |
2869 | 2426 | 11:31 | 19:35 | 19:45 |
| Espiaube | 43,1 | 1594 | 3046 | 3046 | 11:55 | 20:52 | ||
| Vignec | 49,7 | 823 | 3046 | 3817 | 12:25 | 22:26 | ||
| Vielle-Aure | 51,4 | 791 | |
3046 | 3849 | 12:30 | 22:46 | 23:00 |
