Run for Amma

MAY
22
2027
Trail running event in Los Gatos with 50K, 30K and 10K options; proceeds benefit UCSF cancer research.
Sat 22 May 2027
50 kilometers 30 kilometers 10 kilometers

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Run for Amma - Los Gatos, CA

The Run for Amma is an annual trail running event held at Skyline Ridge Open Space Preserve in Los Gatos, California. The 2027 edition marks the 16th anniversary and raises funds for cancer research; 100 percent of registration proceeds are donated to a UCSF lab supporting that research.

The event offers three distances with published elevation profiles and time limits:

  • 50K: 5,052 feet elevation gain, 8.5 hour time limit
  • 30K: 3,382 feet elevation gain, 8.5 hour time limit
  • 10K: 1,026 feet elevation gain, open to walking or running

Race headquarters and the finish line are located in the preserve’s northern lot, which has a bathroom. Participants are directed to park in the equestrian lot. Bib pickup is available on race day for the 50K and 30K races.

Route information and maps are provided for each distance. The event relies on local running clubs and volunteers to staff aid stations, mark and sweep the course, and assist with logistics. Visit the organization's website for the most recent information.

50 km
50k
30 km
30k
10 km
10k

Events nearby

Trail trail race in Cupertino offering a Half Marathon, 11K and a 2.5 mile charity Lollipop Loop with aid stations, swag, prizes, and a post-race barbecue.
A trail running event at Calero County Park offering distances from a kids run to a 50K across single-track and dirt roads, with named aid stations, drop bag support, bib color assignments, and time limits for longer races.
Explore the shaded redwood groves and challenging, flowy singletrack of Sanborn County Park. This trail event on September 27, 2026, offers 10k, half marathon, and 50k distances through the Santa Cruz Mountains.
Run by the Sea at Wilder Ranch State Park on October 4, 2026 features a half marathon, 12K and 4K on mostly flat coastal bluff trails.
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