Sierra Azul Trail Challenge

San Jose, United States • 19 Apr 2025

The Sierra Azul Trail Challenge is a premier running event held in the scenic Sierra Azul Open Space Preserve, near Mt. Umunhum in San Jose, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 20 Mile, Half Marathon, 7 Mile, and 5K.

This challenging race offers unique access to beautiful trails and breathtaking scenery, making it a memorable adventure for runners. The event emphasizes preparation for the tough terrain, ensuring an exhilarating experience for all participants. For detailed course information and maps, visit the event's official website. Visit the organization's website for the most recent information.

Race information

50 km
50K
26 mi
Trail Marathon
20 mi
20 Mile
13 mi
Half Marathon
7 mi
7 Mile
5 km
5K
Visit the organization's website for the most recent information.
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