Saturday, Apr 19, 2025 @ 8:00 AM

Sierra Azul Trail Challenge

21785 Almaden Rd

San Jose, CA 50K, Trail Marathon, 20 Mile, Half Marathon, 7 Mile, 5K

Registration closes: Sat, Apr 19 @ 11:59PM PT

About the Race

Run in the shadow of the infamous Mt. Umunhum. Set in the Sierra Azul Open Space Preserve, this is a one of a kind running experience that provides unique access to gorgeous trails and scenery not viewed by many. This is one of the toughest trail races that we host. Come prepared for a fantastic adventure!

Course Description & Maps

Please visit our race page at
for all course information, maps, and directions.

Event's current local time: 3:34 AM PT


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