10062.1 km mi
100kmlongest of 2 courses
At a glance
Ultra Trail Oso Negro 100k 2026 took place from Saturday 24 to Sunday 25 January 2026 in Santiago, Nuevo Leon (Nuevo León, Mexico). Two distances to choose from: 50 and 100 km.
The organiser has not published the elevation gain or the route yet.
The 2027 edition is expected on Saturday 23 January 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.
2 courses
GPX trace not yet published.
Where to stay
Find a place to stay near Santiago, Nuevo Leon for the race.
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Editions