4th edition LE DEFI DE LA MUZELLE 21 - 25 JULY 2025

LE DEFI DE LA MUZELLE

Trail event in a dream setting and a unique atmosphere!

A 100km race or a 50km race.
4 stages on each race with a new sector to explore each day.
5 great challenges to take up to challenge yourself more and more.

An Incredible 4th Edition!

A huge thank you and congratulations to everyone!

Once again, the Défi de la Muzelle captured the hearts of trail running enthusiasts.

More than just a timed race, it was a true sporting adventure—marked by effort, camaraderie, and breathtaking scenery.
This year, 591 runners took on the challenge, including 256 women.

Spotlight on the champions: Maxime Brochet and Hélène Dassy claimed victory on the 100 km Grand Défi, while Henri Bergasse and Aline Dell’Innocenti took top honors in the 50 km Petit Défi.

A massive shoutout to all the finishers—true mountain heroes—for their determination and incredible sportsmanship!

2025 RESULTS

Stage classifications, the scratch rankings...

The best of Edition 2025!

DÉFI DE LA MUZELLE - AFTERMOVIE
DÉFI DE LA MUZELLE  - AFTERMOVIE
DÉFI DE LA MUZELLE - AFTERMOVIE

CHALLENGE 100 KM

4 stages – 100km – 7100m d+

MONDAY 21 JULY 2025 Stage 1

The Pied Moutet tour

30kms / 2000m d+

A first day to discover the Oisans! The route passes through the main hamlets of Les 2 Alpes (Mont-de-Lans, Bons, Venosc) but above all offers breathtaking views of the Oisans and its villages. This hilly route is ideal for a good warm-up. This hilly course is ideal for a good start. However, you will have to keep your feet under you for the final part of the stage: the ascent of the Alpe de Venosc and its 600m of positive difference in altitude in just over 2 km!

TUESDAY 22 JULY 2025 Stage 2

From Diable to La Fée ​

20kms / 1300m d+

Direction the first beautiful altitudes for this second day! Right from the start, we attack with the Machiavellian climb to the Diable (2400m) before plunging into superb scenery with a more magical spirit. This stage full of contrasts should delight many!

THURSDAY 24 JULY 2025Stage 3

Lunar Jandri 3200

21kms / 1300m d+ 

What an extraordinary experience! Starting and finishing at an altitude of 3200m, it’s going to be a crazy experience! The often lunar scenery is interspersed with exceptional panoramas and high altitude lakes.

FRIDAY 25 JULY 2025Stage 4

The lakes of the Écrins

29kms / 2500m d+

This is THE final touch, the explosion of beauty on this last day! The Ecrins National Park is a marvel, and rightly so: it’s highly protected. That’s why a number of measures apply on this day and why the number of participants is limited. For the privileged few, 2 extraordinary lakes are on the programme: the famous Lauvitel and the no less beautiful Lac de la Muzelle.

CHALLENGE 50 KM

4 stages – 50km – 3250m d+

MONDAY 21 JULY 2025Stage 1

The Ridge of Pied Moutet

16kms / 800m d+

A beautiful 1st day! 6 hilly kilometres to get into shape before discovering the beauty of the Crête du Fioc on this side of Pied Moutet. A stage with rolling parts, a beautiful climb, a spectacular descent: in short, the challenge of the Muzelle is launched!

TUESDAY 22 JULY 2025Stage 2

The Diable

12kms / 800m d+

The climb of the Diable is a “Must”, an ascent not to be missed in Les 2 Alpes. Because its profile is varied and interesting, but also because the views over the Vénéon Valley are grandiose!

THURSDAY 24 JULY 2025Stage 3

Target Jandri 3200

11kms / 700m d+ 

What an extraordinary experience! Starting and finishing at an altitude of 3200m, it’s going to be a crazy experience! The often lunar scenery is interspersed with exceptional panoramas and high altitude lakes.

FRIDAY 25 JULY 2025Stage 4

The assault of Venosc

11kms / 800m d+

The ascent of Venosc, a myth that absolutely had to be included in the race programme! Before climbing these 3 terrible kilometres, you’ll have a chance to get a feel for the terrain on the way down before branching off onto an ultra-technical path to reach the rare fairly flat section of the day. So, are you ready for the assault?