Tudor has announced an official partnership with the UTMB World Series, the global trail running circuit that culminates each year in the HOKA UTMB Mont-Blanc.
A 106-mile race around the Mont Blanc massif with 10,000 meters of elevation gain, temperatures can range from -5°C to 35°C, resulting in a dropout rate of around 40%.
The partnership follows Tudor’s announcement last month that it had signed four elite trail runners as brand partners, and deepens the brand’s commitment to a sport that sits naturally alongside its Born to Dare identity.
Those elite running ambassadors include Courtney Dauwalter, widely regarded as the greatest ultrarunner alive, who completed an unprecedented triple at Western States, Hardrock 100 and UTMB in a single 2023 season.
Elsewhere, Miao Yao is a two-time consecutive UTMB-OCC champion, bridges road marathons and mountain ultras with remarkable versatility. Swiss specialist Rémi Bonnet dominates vertical kilometre events and is a multiple Golden Trail World Series champion, and Baptiste Chassagne is the rising French talent who finished second at UTMB and won Diagonale des Fous in 2025.
The UTMB World Series currently comprises 64 events across 29 countries, covering Asia, Oceania, Europe, Africa and the Americas, with the Mont-Blanc race serving as the circuit’s annual finale. Only the strongest athletes reach the start line, let alone the finish.
Tudor explains that the alignment goes beyond sponsorship. Trail running measures time differently – not just in hours and minutes (though we’re sure the athletes can handle that perfectly with an offering from the brand on their wrist), but in years of preparation, thousands of metres climbed, and nights spent on the mountain. It’s that sense of earned achievement that sings from the same hymn sheet as the brand’s core values.
The partnership positions Tudor alongside one of the most demanding endurance sports in the world, and one of its fastest-growing audiences – a community that takes both its performance and its kit seriously.
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