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La Comblorane offers you a spectacular circuit which will take you through varied terrain in a privileged natural alpine environment. This unforgettable experience is the final step before you embark on more epic distances, such as the maratrail. This L – 25 KM route will test regular runners from intermediate to expert level.

Distance, elevation gain, registration details… find here all the practical information you need to best prepare yourself for the most popular format of our trail weekend in Combloux.

Change of route for race L

As of 04/06/2024, due to weather conditions and for safety reasons, the route of the L format race has been modified. Find it updated route.

The Comblorane L – 25 KM | 1586 D+

Sunday June 9, 2024 at 8:30 a.m.

Set off to discover the heights of Combloux: the route begins at the biotope lake, crosses the village and its hamlets, takes paths in the forest, and finally joins fabulous mountain pasture hiking trails on balconies. Spectacular viewpoints punctuate the race, with the peaks of Aravis, the Fiz chain, and of course Mont-Blanc.

Key information for the 25 km

Actual distance: 24,81 km

Approximate elevation: 1586 D +

Fees :

  • 25 € until February 29, 2024
  • 30€ from March 1 to May 31, 2024
  • 35€ from June 1 to June 6, 2024

No registration on site.

This price includes registration for the race + post-race meal + a gift participant.


Compulsory material:
Cup + Charged cell phone


Update of 04/06/2024: 

In view of the weather conditions this weekend and for safety reasons, also take with you:

  • Water reserve (0,5 L)
  • Blanket
  • Whistle
  • Waterproof jacket (Gore-tex type) in case of bad weather
  • Trail or crampon shoes
  • A bib holder or pins


Qualification Points:

  • 1 ITRA point
  • 20K UTMB Qualifier

Route and GPX track of the 25 km

Updated 04 / 06 / 2024


Water jerrycans will be provided at the various supply points to allow runners to fill their own container. In order to minimize the environmental impact of our event, we indeed encourage participants to bring their own water bottle or reusable glass. The organization does not offer disposable cups for ecological reasons.

  • Refreshment point 1: Les Plaines – 9,5 km
  • Refreshment point 2: Sommet des Salles – 17 km

For information purposes, here is the content of the refreshments on the XL, L and M races: water, Coke, St-Yorre, apple juice, syrup, Naak products, madeleines, sweets, gingerbread, TUC, oranges, apples, bananas.

Time barriers

LocationMileageLast pass time
Departure: Biotope lake08h
Supply 1: The plains9,511 h
Refreshment 2: Summit of the Rooms1713h
Arrival: Biotope lake2515h

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