Trail Running Calendar California 2025-2026

The Mendocino Coast 50K is a scenic ultra trail run held along Northern California’s Mendocino Coast. The 50-kilometer course features diverse natural landscapes including a river, ocean views, towering redwoods, and a waterfall, offering runners a spectacular and varied trail experience. The race s..

The Outlands Endurance Race, held at Peninsula Campground in Pilot Hill, California, offers challenging trail running distances of 25K, 50K, and 50 miles. Set along the rugged, scenic edges of Folsom Lake, the courses feature a mix of runnable single track and double-wide trails with significant ele..

The Annual NATRO@Noli Indian School Trail Race takes place on the Soboba Indian Reservation in San Jacinto, California. This event offers marathon, half marathon, 5k, and kids 3k distances with Native and Open divisions. The marathon features a challenging two-loop 13.1-mile course with over 2,000 f..

The Badger Cove Half Marathon, held at Del Valle Regional Park in Livermore, California, offers runners a choice of half marathon, 10K, and 5K distances. Scheduled for April 18, 2026, the event features scenic courses through the emerald hills of Lake Del Valle, with the 5K course being virtually hi..

The Ramona Wine Country 5K is a unique running event held at BackCountry Gardens in Ramona, California. This scenic race features a challenging 1.5-mile loop course with natural obstacles including hills, streams, boulders, and mud, offering participants the option to complete one or two loops. Beyo..

Badwater Salton Sea is an extreme 81-mile (130 km) ultramarathon held in Southern California, starting from Salton City at 234 feet below sea level and finishing atop Palomar Mountain at 5,500 feet elevation. The race features a challenging course with over 9,000 feet of elevation gain, including a..

The Canyons Endurance Runs will take place in Auburn from Friday 24 April 2026 to Saturday 25 April 2026. You can run between 25 and 161 kilometers.

The Mt. Tam Wild Boar Half Marathon & 10K is an annual trail running event held at Mt. Tamalpais State Park in Mill Valley, California.Celebrating its 38th year, the race features a scenic coastal ridge course combining paved roads and single-track dirt trails with stunning views of the Pacific Ocea..

Coyote Two Moon is a challenging trail running event held in the scenic Los Padres National Forest near Ojai, California. Scheduled for the first weekend of May 2026, it offers a range of distances from a 10K fun run to ultra distances including 30K, 55K, 55 miles, 100K, and a grueling 100-mile race..

The Miwok 100K is a renowned trail ultramarathon held near Stinson Beach, California, just under an hour from San Francisco. The challenging 100-kilometer course features 11,800 feet of elevation gain across single-track trails, dirt roads, and about a mile of paved road. Runners enjoy stunning view..

The Dingneng Wang event, held in San Diego, CA, is a non-competitive marathon along the Los Penasquitos Canyon Trail. Formerly known as the PQ & GZ Trail Marathon, it was renamed to honor Dingneng Wang, a beloved runner and outdoor enthusiast. The course is a clockwise loop with a total distance of..

The San Diego 100 is a challenging 100-mile ultramarathon held in the mountainous east county of San Diego, California, starting and finishing at Lake Cuyamaca Recreation Area. The course is a 90% single-track loop featuring rugged terrain with approximately 15,400 feet of elevation gain and loss. I..

The Waves & Whales 5K Trail Run is an annual event held on the Mendocino Coast in Point Arena, California. The scenic course starts behind City Hall in a conifer forest near Highway 1, follows coastal bluffs along the Point Arena-Stornetta Unit of the California Coastal National Monument, and loops..

The Boney Mountain Trail Run is a scenic trail running event held in the Santa Monica Mountains, starting at Rancho Sierra Vista | Satwiwa National Park in Newbury Park, California. It features a challenging half-marathon course that includes creek crossings, single-track climbs, and stunning ocean..

The Muir Woods Marathon, Half Marathon, and 7 Mile trail runs take place annually at Stinson Beach, California, offering a challenging and scenic experience. Starting at sea level, participants quickly ascend into the dense, wooded trails of Muir Woods, following the famous Dipsea Trail to Steep Rav..

Trailquake 2026 is a trail running event held at Sanborn Park, Saratoga, California, featuring 5K, 10K, and half marathon distances. Runners traverse scenic single-track trails through redwoods and pines, with the 10K and half marathon courses ascending to peaks that offer spectacular views. The eve..

The O'Neill Park Trail Races, held in Trabuco Canyon, California, offer a scenic and challenging trail running experience in South Orange County's beautiful O'Neill Regional Park. The event features multiple race distances including 10K, half marathon, 30K, marathon, and 50K, catering to a wide rang..

The Napa Wilderness Trail Runs, held at Skyline Wilderness Park in Napa, California, offer a variety of trail running distances including 10K, 21K (half marathon), 30K, and a challenging 50K ultra marathon. The courses feature scenic routes with steep climbs, notably the Rim Rock Trail, providing st..

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California, supporting UCSF cancer research. Celebrating its 15th anniversary, the event offers three race distances: a challenging 50K with 5,266 feet of elevation gain, a 30K with 3,629 feet of..

The Bishop High Sierra Ultras, held at Millpond Recreation Area in Bishop, California, offers challenging high-altitude trail races including 6K, 20 Mile, 53K, 50 Mile, and 100K distances. The courses traverse scenic Eastern Sierra Nevada foothills, primarily on 4WD dirt roads with some single-track..