Trail Running calendar near Martinez 2025-2026

Mile Madness Endurance Run takes place at Sunset Whitney Recreation Area in Rocklin, California. The race uses a 1.05-mile loop (85% dirt, 15% paved) with about 62 feet of elevation per lap and a central Start/Finish hub. Runners choose from 6-, 12-, 24-, 48-, or 72-hour events, plus a 100-mile chal..

Granite Head 2025, billed as Granite Bay’s Best Trail Run and part of Trails & Ales, is a two-distance trail race presented by Altra in Granite Bay, California. Runners can tackle a gnarly 6.6-mile short course or an epic 11.2-mile long course. Both start and finish at Granite Beach, with the course..

The Mt. Umunhum Trail Conquest-Fall will take place in San Jose on Saturday 11 October 2025. You can run between 5 and 50 kilometers.

Go Wild Marin offers a trail and wilderness navigation challenge in Corte Madera, California, with 2-hour and 4-hour options. Teams of 1 to 5 use a custom map to locate up to 24 checkpoints scattered along trails and wild areas of the Tiburon Peninsula. The event emphasizes exploration and navigatio..

Ruth Anderson Memorial Endurance Run is an annual multi-distance ultramarathon staged in San Francisco, California. Runners compete on a 4.475-mile paved bike-path loop around Lake Merced, with dirt shoulders and one aid station per loop. Each participant can pursue the event’s standard distances —..

The Napa Lapa Trail Adventure in Skyline Wilderness Park, Napa, California, is Inside Trail Racing’s first time-based event, where runners go as far as possible in a fixed time. Distances include 12-, 6-, and 3-hour options, with each 4.16-mile loop delivering about 815 feet of elevation on fire roa..

The John Lawson Tamalpa Challenge is a three-race cross-country event held at Miwok Meadows in China Camp State Park, San Rafael, California. Each 4.2-mile course follows rolling single-track trails with about a quarter-mile on asphalt, starting near the Miwok Meadows gate and finishing in the Miwok..

Willow Hills XC Open is the Buffalo Chips Running Club’s 16th annual 5K cross-country race, held at Willow Hill Reservoir near Folsom High School in Folsom, California (1655 Iron Point Rd). The course features two laps around a water reservoir, with rolling hills that create a scenic but challenging..

The Diablo Summit Stomp is a Brazen Racing trail race in Walnut Creek, California, starting at Castle Rock Park and venturing into Mount Diablo State Park toward the summit. Runners can choose from four dirt-trail distances: 5K, 10K, Half Marathon, and 30K. The course features hills, potential mud a..

The California Fall Classic at Lake Sonoma will take place in Healdsburg on Saturday 18 October 2025. You can run between 55 and 100 kilometers.

The California Fall Classic at Lake Sonoma offers challenging 100K and 55K ultramarathon races set in the scenic wine country of Lake Sonoma, California. Known for its relentless courses featuring miles of single-track trails with stunning lake views, the event takes place in the fall, providing coo..

Oakland Hills Trail Run takes place in Redwood Regional Park, Oakland, CA, offering three distances: 10K, half marathon (13.3 miles), and 35K (22.8 miles) through coastal redwoods, evergreens, and grasslands. The course is mainly technical dirt trails with steep hills and some non-technical fire roa..

The Quicksilver Trail Challenge is an annual trail running event hosted by the Quicksilver Running Club in San Jose, California. Held at Almaden Quicksilver County Park in the late summer/early fall, it offers a half marathon, a 10K, and a kids’ 1-mile fun run. Runners traverse the same scenic trail..

2025 Napa Fall Wine Country Marathon, Half Marathon & 10K takes place in Bothe-Napa Valley State Park along Saint Helena Highway in Saint Helena, CA. The course uses lush single-track trails with hills, streams and rocky sections, delivering a rugged and rewarding challenge, set just minutes from Na..

The 27th Annual Matt Yeo Memorial Aggie XC Open, presented by the HOKA Aggies, is held at Radke Martinez Regional Shoreline in Martinez, California. The meet features three 4.1-mile cross-country races for Women, Masters Men, and Open Men, all run on a course with grass, dirt, and path footing. The..

Haunted Hills 10K, held in Redwood City, California, blends Halloween fun with a competitive run on October 25, 2025. Runners choose the 10K or 5K course, weaving through neighborhoods decorated for the season. Participants form teams of 1–5 and carry headlamps or flashlights.It's trick-or-treating..

ZombieRunner Halloween in San Jose, California, unfolds at Hellyer County Park along the popular Coyote Creek trail. Courses are well-marked with directional signage throughout. The Half Marathon and Marathon courses are USATF-certified.The event offers multiple distances: 5K, 10K, Half Marathon, an..

The Almaden Hills Trail Run - Fall will take place in San Jose on Saturday 1 November 2025. You can run between 5 and 50 kilometers.

The Rio Del Lago 100 Mile Endurance Run is a premier ultramarathon held annually in the scenic Sierra Foothills of California, near Folsom Lake, about 40 minutes east of Sacramento. The challenging 100-mile course features approximately 13,874 feet of elevation gain and loss, traversing oak woodland..

The Oakland Tech 5km Fundraiser Race and 1 Mile Fun Run/Walk takes place at Joaquin Miller Park Meadow in Oakland, California. This event features a 5K trail run and a 1-mile fun run/walk, offering participants scenic views with towering trees and a course that is both enjoyable for casual runners a..