Running: 52 Miles, 50K, Marathon Trail Run, 30K, Half Marathon, 9 Miles, 10K, 5K
San Jose, California
June 10th, 2023 
19535 Mockingbird Hill Lane, San Jose, CA
The Mt. Umunhum Ultras is a Running race in San Jose, California consisting of a 52 Miles and 50K and Marathon Trail Run and 30K and Half Marathon.
It is with great excitement that we present the trail running community with an exclusive trail racing event a" the Mt. Umunhum Ultras!
Join us for over 15,000 feet of elevation gain on a 52 Mile, or 50K adventure that will take you through mystical oak forests, endless meadows, and steep climbs in the Santa Clara Valley, Sierra Azul Open Space Preserve, and the Santa Cruz Mountains. Be careful what you wish for, these Ultra Races are not for the faint of heart.
For those wishing for a piece of the epic adventure without all the pain, we also offer our more traditional shorter distances, along with a friendlier
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