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Trail Running Calendar near Loma Mar 2026-2027

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Explore the top trail runs near Loma Mar for 2026-2027! We've gathered 39 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

August 2026
Trail races of 10K, half marathon and 30K in Henry Cowell Redwoods State Park featuring redwood single-track, a sandy ridge, river crossings, and cupless aid stations.
A two loop 4.15 mile cross country race on the fire roads of the UC Santa Cruz campus, starting and finishing at the meadow above the fire station and included in the Pacific Association USATF Grand Prix series.
Trail races at Huddart Park, King's Mountain and Bear Gulch offer measured distances from a 50 yard kids dash to a 50K, with fees listed per distance and registration opening November 11, 2025.
September 2026
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.
Trail 5K with a steep first mile and flat fast finish, plus a kids run and member picnic at San Pedro Valley Park on September 20, 2026.
A community-supported running event in Belmont on September 26, 2026, with 10K, 5K, kids' mile, a dog-friendly Fido Mile, and a virtual option.
Trail running in shaded redwood forest at Sanborn County Park on September 27 2026, with 10K, half marathon and 50K options; steep singletrack, shuttle parking, chip timing and specific mandatory gear for the 50K.
October 2026
Experience a trail half marathon on San Bruno Mountain featuring 2,400 feet of elevation gain and stunning views. Enjoy a scenic route with 93 percent trail coverage followed by a post race meal and finishers medal.
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.
A trail race at Almaden Quicksilver County Park with distances from 5K to 50K. Courses are out-and-back, marked with colored ribbons, include aid stations and toilets, and the longer races reach Bald Mountain and Mt. Umunhum.
Trail races at Almaden Quicksilver County Park include a half marathon, 10K and a kids one mile fun run with course aid stations and volunteer support.
Coastal courses in Half Moon Bay with a half marathon, 10K, 5K, kids' run and virtual options, with proceeds supporting Senior Coastsiders.
Celebrate Halloween with a trail race through San Jose Hellyer County Park. Choose from distances including 5K 10K Half Marathon and Marathon with costume prizes and certified courses.
Trail races in Almaden Quicksilver Park from 5K to 50K over hilly dirt roads and single-track, with two staffed aid stations, drop-bag service for longer distances, and a finisher medal for all participants.
November 2026
Trail event at Huddart Park offering multiple distances, a 6 Hour Challenge, cupless aid stations, post-race pancake breakfast and female-only awards.
Experience a flat and fast trail race through the scenic Quarry Lakes Regional Recreation Area in Fremont. Choose from a USATF certified half marathon, 10K, or 5K while enjoying views along the Alameda Creek Trail.
Explore the redwood forests and meadows of Santa Cruz in this 2 or 4 hour map adventure. Navigate through wilderness trails in teams of up to five to find hidden checkpoints and test your navigation skills.
Celebrate Thanksgiving at Hellyer County Park with a trail race along Coyote Creek. Choose from a USATF certified half marathon, 10K, or 5K while competing for a chance to win a turkey.
A post-Thanksgiving running event in Fremont offering a half marathon, 10K, 5K, a short kids run, a food drive for the Alameda County Community Food Bank, and a connector medal option.
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