Half Moon Bay
Trail Running Calendar near Half Moon Bay 2026-2027
Explore the top trail runs near Half Moon Bay for 2026-2027! We've gathered 48 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
December 2026
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.
Trail running weekend in San Francisco that crosses the Golden Gate Bridge and runs through the Marin Headlands, with multiple race distances and spectator access.
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
Trail races from 5K to 50K through eucalyptus forests and lakeside trails at Lake Chabot Regional Park near Castro Valley, CA.
March 2027
Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.
Half marathon, 10K, 5K and a Remote Runner entry at Quarry Lakes in Fremont on March 27, 2027 on a mostly flat course that follows part of the historic Western Pacific Trail.
April 2027
A hilly loop race around Angel Island offering a Half Marathon and 10K, limited to 400 participants with ferry access from Tiburon and a 3.5 hour course cutoff.
A trail event at Lake Chabot Regional Park offering distances from a 50‑yard kids dash to a 50K ultramarathon. The looped course circles the Lake Chabot reservoir and surrounding hills with measured distances.