- 170 k ( 106 mi.) 13,500 meters (8 mi.) of elevation gain and 13,500 meters (8 mi.) of elevation loss.
- Departure from Ordino town centre on Friday on the morning and finish in Ordino town centre
- 16 peaks or passes upon 2,400 meters
- Average altitude: 2,085 meters
- The most spectacular feature: panoramic views, alternate zones of minerals, high mountain meadows, forests, glacial lakes...
- The most technical section: some completely safe rocky ridge sections
- Sticks allowed
- 13 refreshment points
|A||Tarmac road or well-signposted track, virtually rock- and root-free terrain||Trouble-free running. Easy to eat or hydrate without affecting pace|
|B||Well-signposted track, slightly irregular terrain with some stones or roots||Relatively trouble-free running, although requires some attention|
|C||Irregular, slippery and/or narrow track with a lot of stones and/or roots||Running requires concentration|
|D||Very irregular, slippery and/or narrow track with a lot of stones and/or roots||Running requires great concentration|
|E||Very difficult, slippery and irregular terrain (scree or rocks)||Requires total concentration. Ankles and quadriceps must be in very good shape|
(*) This criterion is completely independent of height difference. It is intended as a classification of the nature of the terrain.
- Saturday at 9 am (26-hours race): Margineda
- Sunday at 2 am (43-hours race): Refugi de l'Illa
- Sunday at 8 am (49-hours race): Pas de la Casa
- Sunday at 12 am (53-hours race): Vall d'Incles
- Sunday at 7.30 pm (60,5-hours race): Sorteny
- previously participation in the Ronda dels Cims 2016 or 2017,
- with proof of having finished, in the last 2 years, a non stop race of
- over 100 km with more than 4,500 m elevation gain, or
- over 165 km with more than 2,500 m elevation gain