San Jose
Trail Running Calendar near San Jose 2026-2027
Explore the top trail runs near San Jose for 2026-2027! We've gathered 44 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
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.
Group trail run meeting at Other Brother Beer Aptos in Aptos, CA, with after work routes in Nisene Marks State Park or Seacliff; bring a headlamp and ID for beverages.
Trail races at Almaden Quicksilver County Park offering a half marathon, 10K and kids 1 mile with historic mining views and local conservation support.
November 2026
Trail races at Huddart Park with multiple distances, cupless aid stations, chip timing, post-race pancake breakfast, and awards for female finishers.
Experience a scenic trail run around the Lake Chabot reservoir and hills. With distances from a 50 yard kids dash to a 50K ultramarathon there is an option for everyone at this Castro Valley event.
Navigate the redwood forests and meadows of Santa Cruz in this 2 or 4 hour map based adventure scramble. Explore the wilds in teams of up to five while hunting for 20 unique checkpoints.
Quarry Turkey in Fremont offers a half marathon, 10K, 5K and a virtual race over Thanksgiving weekend, plus a Little Turkeys kids race and a food drive.
Trail races through Sanborn County Park redwoods on December 12, 2026 offering 5K, 10K and half marathon options with chip timing and finisher medals.
New Year's Eve at Lake Chabot in Castro Valley offers trail races on December 31, 2026, with a half marathon, 10K and 5K; walkers and hikers are welcome and free photos are provided.
January 2027
Multi-distance trail races at Lake Chabot across New Year's Eve and New Year's Day, including 5K, 10K, a half marathon and a virtual option.
A mixed-surface running event at Coyote Hills Regional Park offering a half marathon, 10K, and 5K with updated courses, GPX files, and stocked aid stations.
February 2027