Ultra Trail Oso Negro 100k2027

23.01 – 24.01.2027Santiago, Nuevo Leon (Mexico)Dates to be confirmed

Pacing, fueling and crew sheet for the course you pick

Start line in

2 courses · 50–100 km

2 courses

GPX trace not yet published.

Race plan

Pacing, aid stations and fueling timed to your effort on Ultra Trail Oso Negro 100k, in one roadbook.

Find a place to stay near Santiago, Nuevo Leon for the race.

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