My marathons

HOKA UTMB Mont-Blanc

The organiser has not published a date. Chamonix
Chamonix
Chamonix. Photograph by Tiia Monto, CC BY-SA 3.0 via Wikimedia Commons

The course

The UTMB is approximately 170 km with 10,000 m of positive elevation gain around Mont Blanc, through Italy, Switzerland and France, finishing in Chamonix.

The course in short 2 lines
  • About 170 km around Mont BlancAbout 170 km, 10,000 m of climbing, three countries.
  • A week of races, with the UTMB as the finalUTMB, CCC, OCC, PTL, TDS and more in one week.
Course notes 2 short reads on the course
Whole courseGradientAbout 170 km around Mont BlancAbout 170 km, 10,000 m of climbing, three countries.

The 2026 UTMB started in Chamonix at 19:45 on Friday 28 August 2026, with a maximum allowed race time of 45 hours 30 minutes.

Sourced

Whole courseCrowdA week of races, with the UTMB as the finalUTMB, CCC, OCC, PTL, TDS and more in one week.

The 2026 edition ran from 24 to 30 August 2026. The organiser describes the UTMB as the culmination of a quest for runners who qualified through UTMB World Series races.

Sourced

Race fuel

Energy gel
An energy gel sachet
Illustration · drag to turn

Gels for Chamonix, between the aid stations

Over 100 km a gel every 40 minutes stops being a plan: most runners eat real food at the aid stations and take gels between. Practise what you will eat on your longest runs.

Our pick: SiS BETA Fuel gel, box of 6, strawberry and lime. 40 g of carbohydrate a gel, about twice a usual gel, from two kinds of sugar your body takes up side by side.

Easy to forget on race morning: pack them with your bib the night before.

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In Canada the button opens GU Energy Gel, Salted Caramel, 24-pack, the best seller there.

Outside the Netherlands, Belgium, Germany, Austria and Switzerland, the UK and Ireland, Spain and Portugal, Italy, the rest of the EU and Canada the button opens GU Energy Gel, Chocolate Outrage, 24-pack on Amazon.com, the best seller there.

Anti-chafe
Compeed Anti-blister stick
Photo: Compeed

Compeed

Compeed anti-blister stick, 8 ml

Best selling on Amazon amazon.nl, read 2 Nov

An invisible layer before the start keeps seams, straps and shoes from rubbing skin raw.

Put it on before you leave for the start: heels and toes, inner thighs, under a bra or heart-rate strap.

Try it on a long run first, like everything you use on race day.

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We earn a small fee if you buy through these links. The price is the same.

Number belt
A race number belt
Illustration · drag to turn

Compressport Race Belt

Holds your bib without safety pins through your top, with loops for up to 8 gels.

Clip the bib on the night before, so it goes on with your shorts in the morning.

Keep the number on the front, where officials and photographers can see it.

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We earn a small fee if you buy through these links. The price is the same.

Electrolytes
A tube of electrolyte tablets
Illustration · drag to turn

SiS Hydro electrolyte tablets, tube of 20

One tablet in a bottle puts back some of the salt you sweat out.

One tablet in 500 ml of water in the hour before the start.

Only if you have used them in training: nothing new on race day.

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We earn a small fee if you buy through these links. The price is the same.

Blister plasters
Compeed Blister plasters, medium, 6
Photo: Compeed

Compeed

Compeed blister plasters, medium, 6

Best selling on Amazon amazon.nl, read 2 Nov

One in a pocket cushions a blister if one starts.

Put it on clean, dry skin and leave it until it comes off by itself.

Give a couple to whoever comes to cheer, so they are there at the km you need them.

Get it on Amazon

We earn a small fee if you buy through these links. The price is the same.
distance
300.0 km186.4 mi

Trip

Getting a place

Entry through the organiser

Entry details on the organiser’s site →

The organiser, a third party. We take no entries and have no part in the race.

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