Trail Running Calendar California 2026-2027

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 200 mile trail race around Lake Tahoe on sections of the Tahoe Rim Trail, featuring lake views, aspen meadows, rock gardens, small alpine lakes and long ridgelines. The event dates are June 12–16, 2026.

A three day TransRockies style stage race and single day trail races in Big Bear Lake on June 12 to 14, 2026, featuring distances from 5 to 33 miles with substantial elevation gain and courses pending USFS approval.

A 100-mile point-to-point ultramarathon on June 13, 2026, from UC Berkeley to Skyline High School in Oakland, featuring about 18,000 feet of ascent across East Bay ridgelines, redwood forest, and lake-shore fire trails with a 33-hour limit.

Trail weekend in Cool, California with looped 13.5 and 11.5 mile courses forming distances from 5K to 100K. Marked single track and fire roads, live chip timing, aid stations, and finisher awards for every distance.

A 100 mile trail race in Cool, California on June 13, 2026, run on repeated 13.5 mile and 11.5 mile loops over single track and fire roads with about 13,600 feet of elevation gain. Finishers receive a handcrafted buckle and live tracking is..

Three distances start and finish at the Village at Palisades Tahoe with scenic out and back courses along paved trails by the Truckee River. Aid stations, race shirt, finisher medal, free photo, and beer for participants 21 years or older.

A four race series of open 5 km races at Panorama Vista Preserve in Bakersfield, with Youth, High School and Adult divisions, two waves, a 45 minute time limit, and series scoring that counts each runner's best three races.

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..

Phoenix Rising on June 13, 2026 offers 5k, 10k, 15k and a half marathon on hard packed horse trails in Griffith Park, with marked out and back routes, an aid station at the turnaround, and finisher medals.

A 5K run and walk on the trails of the Cosumnes River Preserve in Galt, CA, offered as an in-person outdoor event on June 13, 2026. The listing notes an overall duration of about three hours and free online ticket availability.

A community charity walk and run at Howarth Memorial Park supporting Dogwood Animal Rescue Project, with a 1.5 mile course and a virtual option that ships a race packet including a limited-edition dog bandana.

A second annual running event at the Old Los Angeles Zoo area on June 14, 2026, offering a half marathon and a 12K on relatively flat, scenic trails. Registration runs November 21, 2025 to January 26, 2026 with fees from $49.

Los Mugrosos 5K in South El Monte on June 14, 2026 features a scenic single loop trail and a kids dash for ages 2 to 12. The main 5K includes a shirt and finisher medal and is limited to 90 runners.

A 100 mile loop trail race based at Burney Mountain Guest Ranch in Cassel, CA, running through Lassen National Forest and the Thousand Lakes Wilderness with about 15,000 feet of total climb. Camping for runners and crew is provided and a po..

A four day Skyrace at Palisades Tahoe on June 18–21, 2026, offering technical mountain distances from a steep Ascent to a 46K, plus youth and multi-day Crown options. The courses feature alpine exposure, ladders, hand lines, and a large pri..

Orange Curtain Run in Orange County, California offers a range of distance and timed events from 10K to 100K on mixed pavement and bike path surfaces. The event is scheduled for June 19 and 20, 2026 and includes a certified marathon.

A trail race at Black Mountain in San Diego with 50K, 25K and a half marathon on June 20, 2026. The event follows Trail Sisters guidelines and features aid stations staffed by ham radio experts.