San Carlos
Trail Running Calendar near San Carlos 2026-2027
Explore the top trail runs near San Carlos for 2026-2027! We've gathered 65 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Trail races on Mount Diablo in Walnut Creek on October 17, 2026 offering 30K, half marathon, 10K and 5K on hilly trails with possible mud and creek crossings.
Trail races at Almaden Quicksilver County Park offering a half marathon, 10K and kids 1 mile with historic mining views and local conservation support.
Scenic coastal 5K, 10K, half marathon and kids run in Half Moon Bay that raises funds for Senior Coastsiders; every participant receives a pumpkin.
Virtual worldwide challenge and an in-person gathering at the San Francisco Ferry Building on October 24, 2026, fundraising for the Breast Cancer Research Foundation.
A team relay across San Francisco trails covering nearly 13 miles and over 2,000 feet of elevation, with five segments and teams of up to five runners for a $50 entry.
November 2026
A fundraiser in Joaquin Miller Park featuring a 5 km trail race and a 1 mile fun run to support Oakland Tech PTSA and student programs.
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.
Thanksgiving Day 5K and canicross fundraiser at San Leandro Marina with races for adults and kids, vegan refreshments, and animal welfare fundraising.
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.
December 2026
A seasonal cross country event in San Francisco on 12/6/2026 with live and virtual options. Distances include a 5K, 10K, and a nine mile course; all entrants receive race swag and there is a pre race bib and shirt pickup with Brewfest.
Urban single-loop ultrarun in San Francisco from Twin Peaks offering 50K and 50 mile options with volunteer-supported aid and a mile 25 cutoff.
A memorial 5K on Baker Beach honoring a longtime DSE member, featuring a mixed surface course with a wooden bridge and parking at the upper lot.