California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 380 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
May 2027
Twilight trail races at Mission Trails Regional Park offering 25K and 50K options with technical single track, significant elevation gain, and sections run after sunset.
Two-day obstacle race weekend at Toro Park near Salinas with Sprint 5K, Super 10K, kids races and spectator options.
Mountain trail races in the Angeles National Forest on May 29, 2027 offering 50k and 21k courses with multiple aid stations and a finish festival.
Beer City Half San Jose on May 29, 2027 at Almaden Lake Park pairs trail and park running with a beer festival. Events include a half marathon, 10k, 5k, a 1 mile Beer Stroll, the Beat the Beast beer mile, and beer tastings.
An 8 mile uphill race climbing 4,600 ft from Keeler to the historic Cerro Gordo town, finishing with a mountaintop barbecue, music, and shuttles back down. Spectator passes include the shuttle ride and food.
Trail races of 10K, half marathon, and marathon at Toro Park, Salinas on May 30, 2027, over rocky trails and dirt roads with summer temperatures around 16ºC and an average altitude of 520 meters.
June 2027
Trail runs of 31.1 miles and 12.4 miles through Sierra National Forest, with spaced aid stations, onsite pre-race lodging and dinner, and no pets on course or campus.
Trail races at Point Mugu State Park in Malibu on June 5 2027 offering distances from a half marathon up to a 100K.
Vineyard trail event at Orfila Winery with 3, 6, and 9 mile options, three wine tastings for those 21 plus, food trucks, and limited entry of 300 runners.
A trail event in Griffith Park offering a 26.2 mile team marathon relay and a single-loop 8K. Features chip timing for the relay, aid stations with medical staff, shirts, medals, prizes, food vendors and live DJs.
A paved out-and-back along the Truckee River Trail in Olympic Valley with Half Marathon, 8 Miler, and 5K options, aid stations, finisher medals, event shirts, and beer for those 21 and older.
A point to point 100 mile trail race in Berkeley with 18,000 ft of climb, a 33 hour limit, and a capped field of 300; a Western States qualifier and UTMB Index race.
A historic 7.4 mile trail race from Mill Valley to Stinson Beach, known for steep stairs, a unique handicapping start system, and a limited field of about 1,500 runners.
A 100 Miler in Cassel CA through Lassen National Forest and Thousand Lakes Wilderness with variable high country routes and mandatory trail or volunteer service.
Trail races at Topanga State Park with 10 km, returning 15 km Garapito route, a junior 1 km, cash prizes, medals, postrace food and shuttles.
A 200.4 mile loop ultramarathon around Lake Tahoe on single-track trails with 32,093 feet of elevation gain and staffed aid and sleep stations.
Robie Point hosts a one-mile relay with Solo, Duo, and four-person teams plus a multiweek 100 mile challenge, awards, tracking, and trail-side vendors.
July 2027
Iron X pairs a half marathon on part of the Western States Trail with on course ironing at eight Auburn locations.
A 135 mile nonstop invitational ultramarathon from Badwater Basin in Death Valley to Whitney Portal on Mt Whitney with a 45 hour limit and required support crews.
A trail event in Downieville, California with 25K, 50K, and 100K options on mostly singletrack. Courses include multiple aid stations, substantial elevation gain, and specific equipment and pacer rules for the 100K.