Join our volunteers!

As the focal point of the Marathon, the Club des Sports de Chamonix becomes Race HQ for the entire event. Your role will be to welcome volunteers, partners, emergency services,.... to provide them with information, their kit (T-shirt and cap), their packed lunch, and the equipment they need to carry out their mission (radios, first-aid kits, chasubles, etc.). A Club des Sports manager is always availble at Race HQ to provide support.

To limit the number of cars circulating and parking in the valley, we provide free shuttles for the accompanying persons, so that they can get to the refreshment points and cheer on their runners. As an ambassador, you'll be located close to these refreshment points, where you'll be able to inform the public about return times and bus drop-off points.

From Thursday to Saturday, the Place du Mont-Blanc will be transformed to host the Marathon Trail Camp, bringing together some 60 trail equipment suppliers. Located at the Trail Camp information stand, you will provide runners, their companions and the general public with information on the event program and other logistical details. You will be supervised by a manager from the Chamonix Sports Club.

You give their bibs to runners, chek their ID and their equipment.

A few days before the event, you'll be preparing and sorting race numbers, which will then be distributed to runners during the week of competition.

Working in pairs on a portion of the course, you'll mark out the route for the runners to follow, using a variety of marker materials (supplied by us). To do this, you need to be familiar with the mountain trails and in good physical condition.

Working in pairs on a section of the course, you wait at a checkpoint for the time barrier to be applied, then take on the role of "queue-binder" behind the last runners, to make sure they get to the next checkpoint.

Located at points along the route where runners are likely to get lost despite the signposting, you play the role of mountain guide to steer them in the right direction. You'll need to be familiar with the mountain trails, and some points can only be reached by a short mountain walk.

Working in pairs on a portion of the route, you'll set off a few hours before the runners' departure to check trail markings and condition. You need to be familiar with the mountain trails and in good physical condition.

To ensure the safe passage of runners along major roads, you will be responsible for signposting and traffic control.

Located on the Place du Mont-Blanc, at the heart of the Trail Camp, the test refreshment stand allows runners to taste the drinks and products that will be distributed at the race refreshment stands. You'll provide information to runners and help set up, stock and clean the stand.

Several refreshment points are set up for each race, at different locations and times of day or night. You'll help set up the refreshment area, distribute drinks and food to the runners, and clean up after the runners.

Located at strategic points along the race route, often at altitude, you will be equipped with timing equipment to check and record runners' times. You will be in touch with Race HQ and the organization in charge of timekeeping (LiveTrail). For this mission, you'll need to know the mountain trails well, and you may have to walk a little in the mountains to reach the timing point.

You assist the timekeeper at the start of the Kilomètre Vertical by placing runners in single file according to their order of passage and checking their numbers.

As a race commissioner, you'll be responsible for enforcing the rules during races, and you'll be randomly checking runners' compulsory equipment along the course.

As a doctor, nurse, first-aider or ambulance driver, you join the Marathon medical team and provide assistance to injured runners.

As a physiotherapist, chiropodist or masseur, you join the Marathon paramedical team and provide care for runners who have injured themselves or are suffering from pain.

You're part of the Mont-Blanc Marathon's "couteaux suisses" team: you live close to Chamonix, you can get around easily, you know the area well and you can be available at any time during the event to deal with unforeseen circumstances and emergencies (replacing an absent volunteer, providing logistical support, unforeseen needs...).

For the KV and 23km, you collect the bags of runners who wish to drop off their belongings, and transport them to the finish point of their race, so that they can collect them on arrival.

For races with several starting waves, runners are grouped together in different starting SAS. You take part in the physical installation of these SAS (handling), and/or in the management of the starting waves, directing runners to the SAS corresponding to their number.

As a member of the logistics team, you'll help set up and take down the race start and finish areas (Planpraz, Place du Triangle de l'Amitié or Aire des Parapentes). To do this, you'll need to be in good physical condition and able to carry heavy loads.

To limit the number of cars circulating and parking in the valley, we provide free shuttles for the accompanying persons, so that they can get to the refreshment points and cheer on their runners. As an ambassador, you'll be located close to these refreshment points, where you'll be able to inform the public about return times and bus drop-off points.

You'll work as a volunteer in one of the parking lots set up to accommodate runners' companions (Vallorcine, Le Tour, Le Buet, Emosson...). You regulate traffic, direct drivers and ensure that cars are properly parked to maximize the number of spaces available. You are also responsible for respecting neighbors and the surrounding environment.

You're part of the Mont-Blanc Marathon transport team. You drive a minibus or 4x4 to collect runners who drop out during the race, and you transport members of the organization (photographers, cameramen, first-aiders, volunteers, etc.). For this job, you need to know the valley's roads and trails inside out.

This time of year is known for offering all possible weather conditions! So remember to bring the right equipment for your position.

• For all volunteers: comfortable and weather-appropriate clothing, a backpack, a water bottle and/or thermos flask, a rain jacket, sunglasses, the Marathon cap and T-shirt, your charged cell phone that can be reached during your missions, and an external battery if necessary.
• For positions on the race course (markers, openers, closers, orienteers and unmarkers): good walking/hiking shoes, a backpack big enough to carry the equipment we'll provide for your mission.
• For night shifts: warm and waterproof clothing and a headlamp.
• For refuge posts : a sleeping bag and toiletries.

Unfortunately, the Mont-Blanc Marathon organization is unable to provide accommodation for volunteers.

You'll find all the information you need about your volunteer assignments in your volunteer space. Information will also be regularly sent by e-mail. Please note that your volunteer assignments may evolve up to the day of the event, as may the characteristics of the assignment (times, meeting place, etc.): please check your volunteer space regularly to be aware for any changes.

My volunteer space

The Mont-Blanc Marathon involves more than 750 volunteers spread over a hundred different missions. We therefore carefully consider all requests, in order to respect your preferences as much as possible while meeting our event needs. Please note that we accept all volunteer applications, unless your availability does not correspond to any of our requirements, in which case you will be notified as soon as possible.

Once you have registered, you will be able to check your volunteer assignments in your volunteer area. However, please note that these assignments will be regularly updated to reflect the needs of the event (new missions, volunteer withdrawals, schedule changes, etc.). Please check your volunteer space regularly for updates.

Your assignments will be considered final approximately 1 week before the event.

My volunteer area

Registration dates for volunteers during the 2025 Mont-Blanc Marathon will be announced shortly. Registrations are generally open from February/March to mid-June.

If you have any questions about the event organization or about registering as a volunteer, please contact Kelly, our volunteer manager, at kelly@chamonixsport.com or 04 50 53 65 41.

Once you've been assigned your volunteer mission, your main contact will be your post manager (the person in charge of the mission). He or she will be given your contact details so that he or she can get in touch with you directly. His/her contact details will also be available on your assignment form.

As a volunteer, you will be offered a Mont-Blanc Marathon cap and T-shirt. These must be worn during your volunteer assignments.