Calendar Ultra Trail Oso Negro

FREE

Oso Negro races volunteers Astro Trail

Nov 23 11:00 Volunteer on Santiago, Mexico 100k Mountain Ultra trail.

$850

NIght run Astro Trail 25K 2023

Nov 23 18:00 Ultra Astro run. 1200m+ 23k

FREE

Oso Negro races volunteers 2025

Ene 24 2025 18:00 Volunteer on Santiago, Mexico 100k Mountain Ultra trail.

$2,000

Oso Negro Ultra Trail 50K 2025

Ene 25 2025 6:00 Ultra Trail run 50K. 2880m+. ITRA 2. 50K M.

$2,500

Ultra Trail Oso Negro 100K 2025

Ene 25 2025 5:00 Santiago, Mexico 100k Mountain Ultra trail. 5 most beautiful waterfalls in the state. 5860m+. ITRA 5. Western States. 100K M.

$2,300

Ultra Trail Oso Negro 75K 2025

Ene 25 2025 5:00 Santiago, Mexico 75k Mountain Ultra trail. 4800m+. ITRA 4. 100K M.

$1,500

TrailRun Oso Negro 30K 2025

Ene 25 2025 6:00 Ultra Trail run 30K. 1600m+. ITRA 1. 20K M.