Trail Running calendar near Modesto 2026-2027

A trail event near Yosemite offering a **50k** and a **20k Fun Run**, with staffed aid stations, camp lodging, a preordered pre-race dinner, and finisher medals for finishers.

Dirt Circus in San Francisco is a free community festival by UltraSignup featuring a social 3.2 mi or 4.5 mi group run, an expo with brand vendors, food, and a raffle, plus local partners and limited on-site parking.

Trail races of 5K and 10K along wetlands, oak bluffs and historic rock-dredge terrain on the north shore of Lake Natoma. Entry fees vary by date and proceeds benefit the Rachel Anne Gray Memorial Scholarship.

A trail event at Almaden-Quicksilver County Park on June 7, 2025 offering distances from 5K to 50K, steep climbs, marked courses, aid stations, and toilet facilities. The 52 mile race is not held in 2025 and is planned to return in 2026.

Trail run on June 6, 2026 at Lake Natoma in Fair Oaks offering 5K, 10K and a kids run for under 10 years old. Routes pass wetlands, oak woodlands and single track; proceeds support the Rachel Anne Gray Memorial Scholarship.

A monthly community meetup in Richmond offering a conversational group hike or an optional faster trail run, organized by FIERCE Advocates with Moving Forward and Richmond Run Club. Events are family friendly and include free parking.

Experience the 42nd annual Lake Chabot Trail Challenge featuring a scenic half marathon loop and a paved 5K run. Enjoy views of the San Francisco Bay and Mt Diablo while competing for medals on chip timed courses.

A point-to-point 100-mile ultramarathon from UC Berkeley to Skyline High School in Oakland, featuring about 18,000 ft of elevation across ridgelines, redwood forest and lake trails; the 2026 race is sold out with a waitlist.

Experience a fixed-time event at Crissy Field with stunning views of the Golden Gate Bridge. Run or walk as many laps as you choose in three six or twelve hour blocks as an individual or part of a team.

Trail races of 30K, 10K, 5K and a Kids 1K take place at Lagoon Valley Park in Vacaville. Courses are marked and supported with aid stations offering drinks and snacks.

Annual 5K and 10K fun run and walk each June at Hunting Hollow in Henry W. Coe State Park. The relatively flat dirt course runs through a wildflower-lined valley with oak trees and occasional wildlife, with proceeds supporting park projects..

A 5K fun run and walk at Cosumnes River Preserve in Galt, California on June 13, 2026. The in person event follows trails within the preserve, is organized by Cosumnes River Preserve, and has free admission.

Live and virtual options at Lake Chabot feature 5K, 10K, and a half marathon with multiple aid stations, on-course nutrition, race apparel and a woodallion, post-race beverages, and a brewfest atmosphere.

A 10-mile trail race in Redwood Regional Park with single-track terrain, a timed 0.8 mile hill climb, age-based handicap starts, limited to 250 runners, and a team competition.

Multi-day trail runs in Yosemite high country offering summit routes (El Capitan, North Dome, Cloud's Rest), point-to-point mileage across 40-98 miles, glamp-style basecamp at Tioga Pass, guided shuttles, meals, and permit logistics include..

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

Multiple trail distances from 5K to 50K on very hilly single track and dirt roads at Rancho Cañada del Oro. The course features scenic foothill views, two aid stations, enforced cutoffs, and finishers receive a medal.

Experience a scenic trail run through ancient Coastal Redwoods and lush river canyons in Santa Cruz. Choose from multiple distances including a 50K and marathon with several river crossings.

Timed trail races at Point Pinole on July 25, 2026 offer 12 hour, 6 hour and 3 hour formats on a 3.37 mile loop with shoreline views and eucalyptus groves. Solo runners and two or three person teams are accepted, and entry includes an all d..

Trail running at Calero County Park with multiple distances across single track and dirt paths, significant climbs, aid stations and free parking at the park.