Get ready for an extraordinary adventure: up to 24 hours of running, day and night, to complete as many laps as you want. You choose the duration: 3, 6, 9, 12 or 24 hours. Sign up for the window you prefer and within that time slot you rack up your loops, at your own pace, fueled by the energy of the group and the magic of the mountain. One lap, ten, twenty… anything is possible. Take part however you like, solo or in a team, walking or running, fast or slow.
Run a few loops, take a break, then start again - you decide, no limits. Run or walk, for a few hours or all 24… anything is possible, your call. This is more than a race: it's a trail running festival, and the experience is yours to shape.
The Handi teams will share the course with you. You'll cross paths with their determination, their smiles, and sometimes you'll even help them tackle a steep climb. Everyone is a Helping Runner. On a tough ascent, a technical descent, or simply for the joy of it: you can join a Handi team at any moment and help them move forward. No fixed roles, no rules: just solidarity in motion.
And to fully immerse yourself in the experience - whatever the duration of your race - the MDS bivouac awaits. Two nights in a tent, at high altitude. But if you prefer your own bed at the resort, the format is flexible: you choose the accommodation, the comfort, the adventure. MDS Crazy Loops is not just a race. It's a base camp, a tribe, a playground to push beyond and find yourself again.
A sporting, human and inclusive adventure where everyone gives, receives and grows in their own way. Come live the ultra-differently. At altitude. Together.
What's included with your bib: registration and bib give you access to the MDS village and event facilities, race and medical assistance along the course, and basic aid stations with water for hydration during the loops.
Jun 18, 2027
Distance — 4000K
Type — Running
302 days remaining
Jun 18, 2027
Distance — MDS Crazy Loops + Bivouac
Type — Running
302 days remaining
These values represent the 3-year monthly averages for June in Courmayeur.
Learn more about the host city, Courmayeur.
Courmayeur is a skiing and mountaineering resort at the head of Valle d’Aosta, in northwest Italy. At 1224 m elevation, it has a spectacular location near the foot of Mont Blanc.
Read more launchRead what other athletes have to say about their experience at the MDS Crazy Loops Courmayeur.
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