Trail Running calendar near Tracy 2026-2027

A backyard ultra at Beals Point in Granite Bay where runners run a 4.16 mile loop each hour until one remains. A 12 hour Mini format offers the same hourly lap with a fixed limit.

A trail race at Acorn Creek Trailhead near Pilot Hill offering a 10K lap and a two-lap half marathon on singletrack with creek crossings and scenic overlooks. The event raises funds for the American River Conservancy and supports local trai..

Oakland Hills Trail Run features 10K, half marathon and 35K courses through Redwood Regional Park with technical trails, marked routes, aid stations and chip timing. The event is cupless and limited to 330 runners.

A Halloween-themed running event at Hellyer County Park with 5K, 10K, half and full marathon distances, youth divisions, a free kids' dash, a costume contest, certified half and full courses, aid stations every 2-4 miles, and cupless hydrat..

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.

Support student programs and the Oakland Tech Cross Country team at Joaquin Miller Park. Choose between a five kilometer trail race or a one mile fun run through the redwood trees.

Event Details The Rio Del Lago 100 Mile Endurance Run is a trail race held on Saturday, November 7, 2026, starting at Beal's Point in Folsom Lake State Recreation Area, within the Sierra Foothills of California. Course Information The 100-m..

Trail running at Huddart Park in Woodside with multiple distances from a 1 mile kids dash to a 6 hour loop challenge. Swag choices, packet pickup locations, youth discounts and limited parking are provided.

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.

On November 7, 2026 the Mt. Tam Trail Run at Stinson Beach offers 10K, half marathon, 30K and 50K trail races with large elevation gains on technical dirt trails. The event is cupless and limited to 500 runners.

A November trail event at Rancho Cañada del Oro offering distances from 5K to 50K, with steep climbs, single track and two main aid stations. Runners should carry water and be aware of exposed terrain and rattlesnakes.

A flat trail event at Quarry Lakes Regional Recreation Area offering 5K, 10K, half marathon and youth races, cupless aid stations every 2–5 miles, and a USATF-certified half marathon course.

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.

Trail event in El Dorado Hills with distances from 5K to trail marathon on mostly single-track dirt, rolling hills, a creek crossing, marked aid stations, and enforced time limits; finishers receive a medal.

Trail race at Darrington Trail Head by Folsom Lake offering 5K, 10K, 18M and 36M on rocky single-track with rolling hills, aid stations, drop bags, and a 10-hour overall time limit.

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 Thanksgiving Day trail event at Beals Point offering 5k and 10k courses plus a free 1k kids run for under-6s. The race supports Folsom's Hope, features one aid station, and requires runners to bring a cup or bottle.

A 28.4 mile out and back on the Dipsea Trail from Old Mill Park to Stinson Beach, repeated four times for the Quad. The route includes about 9,000 feet of climbing, stairs, named trail sections, aid stations, and strict time cutoffs.

Quarry Turkey 2026 at Quarry Lakes Regional Recreation Area in Fremont offers a half marathon, 10K, 5K and a short children's Little Turkeys run. The event includes youth divisions, a virtual option and a food drive for Alameda County Food..

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.