Nearly 2,800 runners set off from Chamonix on Friday for the UTMB, a 174-km loop around Mont Blanc that starts long before the first climb: every runner must carry a tightly controlled list of equipment from the first meter to the last. For Dorian Louvet, running his first ultra, the race is already testing logistics as much as legs.
The gear list is not a formality. It stays on the runner and must remain accessible and controllable at any point, with checks carried out at different aid stations during the race. That means an identity document, a smartphone with Internet access and the race-tracking app installed, an impermeable hooded jacket rated at least 10,000 Schmerber, a waterproof overtrouser, warm long sleeves, a hat or neck warmer, a cap, warm waterproof gloves, a survival blanket, adhesive bandage, a whistle and two working headlamps, each with its own energy reserve.
The race officials ask for that level of detail because the route crosses about ten passes above 2,000 meters, several of them at night, and late August can swing from more than 30 C in the valley to a perceived minus 10 C at altitude. Louvet said he is keeping his usual phone because all his music is on it, a reminder that even the simplest choice is folded into a much more demanding checklists-and-weight calculation than most runners know from a marathon.
That is where the friction of the UTMB shows up most clearly. The event is sold as a sporting effort around Mont Blanc, but before anyone can settle into the pace, they have to prove their pack is complete and workable, then keep proving it as the course unfolds. The organization even insists on two front lamps with separate energy reserves, a safeguard for a race that can move deep into the night and far from anything resembling a quick exit.
Louvet has already had to think like that. He said he was advised to use dishwashing gloves because they are light, and he keeps an old race bib from Tokyo where he ran a marathon in 2h18, even if he no longer remembers exactly what is printed on it. For him, as for everyone else in Chamonix, the first battle is not the climb around Mont Blanc. It is making sure nothing essential is missing when the checks begin.
