January |
| FREE | Oso Negro races volunteers 2025Ene 24 2025 18:00 Volunteer on Santiago, Mexico 100k Mountain Ultra trail. |
| $2,000MXN | Oso Negro Ultra Trail 50K 2025Ene 25 2025 6:00 Ultra Trail run 50K. 2880m+. ITRA 3. 50K M. |
$2,500MXN | Ultra Trail Oso Negro 100K 2025Ene 25 2025 5:00 Santiago, Mexico 100k Mountain Ultra trail. 5 most beautiful waterfalls in the state. 5860m+. ITRA 5. Western States. 100K M. |
$2,300MXN | Ultra Trail Oso Negro 75K 2025Ene 25 2025 5:00 Santiago, Mexico 75k Mountain Ultra trail. 4800m+. ITRA 4. 100K M. |
$1,500MXN | TrailRun Oso Negro 30K 2025Ene 25 2025 6:00 Ultra Trail run 30K. 1600m+. ITRA 2. 20K M. |
April |
| FREE | Voluntarios Abr 19 2025 18:00 Voluntarios para asistencia a los corredores de todas las distancias en Galeana, NL. Aprendizaje y cabaņas gratis. |