31–105km
4 courses
Ultra Nuevo León
La Ciénega de González, Nuevo León · 🇲🇽 Mexico
1’907–5’008 m D+
Ultra
Upcoming races
October2026· 1 race
Sat 17.10.1 race
January2027· 2 races
Sat 23.01.2 races
25–100km
4 courses
Ultra Trail Oso Negro
Santiago, Nuevo León · 🇲🇽 Mexico
1’220–5’273 m D+
Ultra
50–100km
2 courses
Ultra Trail Oso Negro 100k
Santiago, Nuevo Leon, Nuevo León · 🇲🇽 Mexico
Dates to be confirmedUltra
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