Trail Running Calendar California 2025-2026

We have found 250 Trailruns in California. Check below where and when you can find the races.

Explore scenic, moderately technical trails at Lake Chabot Regional Park with distances from 5K to a 50K ultra, chip timed and capped at 500 runners. Aid stations, cupless racing, and sturdy prizes make this a must for trail lovers.

Hit scenic single track trails along Granite Beach at Folsom Lake for the Lost Trail 5K and Half Marathon on Feb 21, 2026. Enjoy lake views, wildflowers, finisher medals and optional soft cotton shirts available for preorder.

Take on coastal ridgelines at the Montara Mountain Trail Run in Pacifica on Feb 21, 2026 with distances from a 10K to 50K plus a kids dash. Enjoy rugged single track, ocean views, medals for finishers and fully stocked aid stations.

Run the 4 Mile Hill Challenge at Debs Park on scenic trail with rolling climbs, or try the 2K youth hill challenge for adventurous kids. Pet friendly and includes a shirt at packet pickup, but the event is postponed due to severe weather wa..

Run scenic foothill trails near Sacramento at the Salmon Falls 50K Endurance Run. Pick the 50K or half marathon and finish at Browns Ravine for a memorable day of trails, great aid stations, and a locally made finisher medal.

Enjoy scenic single loop trails at Goodman Ranch Sycamore Canyon Preserve near Poway, CA on Saturday February 28 2026. Choose from solo 50K and 100K, a half marathon, or four person relays for the ultra distances.

Run scenic trails at Tejon Ranch near LA with options from 11k to a rugged 100k through canyons, creeks and sage country. Fully marked courses, staffed aid stations, camping and a finish festival with food and beer.

March 2026

Run scenic trails around Angel Island from a lively 5 mile loop to a challenging 15 mile climb up Mount Livermore, with custom medals and pre registered shirts. Ferries from Tiburon set the scene for a memorable island race day.

Way Too Cool in Cool, California brings scenic 50K and 10 mile trail runs over rolling hills and creek crossings. Enjoy stocked aid stations, a handcrafted finisher medallion, and post race tacos with a beer garden.

Run or hike scenic Skyline Ridge in La Honda, CA with 50K, 21K and 10K options across rolling ridges and forested trails. All entry fees support the Bay Area Ridge Trail so your miles help protect local open space.

Run scenic single track trails in the San Joaquin River Gorge with a challenging half marathon or 10K and finisher medals and shirts. Expect steep foothill climbs, rugged footing, aid stations, and big views.

Join the Sanger Blossom Trail Run on Saturday March 7, 2026 for a flat, scenic 10K through downtown and blooming orchards. Family friendly races and walks from tots to adults make it a fun rain or shine community day.

Take the plunge or lace up for a 5K trail or 1 Mile fun run at the Greater Sacramento Polar Plunge & Runs to support Special Olympics Northern California. Join the fun, earn a commemorative medal, and cheer on athletes.

Run or walk scenic routes at the Tesoro Viejo Spring Classic in Madera CA with half, 10k, 5k and virtual options on March 8 2026. Enjoy rolling trail views, a tech shirt and finisher medal plus a festival with food, wine and live music.

Run scenic trails at China Camp State Park in Santa Venetia with live and virtual 5K, 10K, and half marathon options on March 15, 2026. Expect technical single track, big climbs, and rewarding views for trail runners seeking a challenge.

Challenge yourself on scenic Anza Borrego desert singletrack at the Old West Trail Runs near Julian, CA on March 14, 2026, with 50K, marathon, and half marathon options. Aid stations, campground showers, tech shirts and SoCal Ultra Series q..

Experience rugged mountain trails and sweeping views at Tierra Redonda Mountain Trail Run and Camp in Bradley California on November 15 2025. Choose from epic 48 hour and 24 hour challenges or 20 km 10 km and 5 km distances.

Run the Ruck a Chuck 50K on March 14, 2026 in Foresthill, California, through scenic Sierra Nevada foothills along sections of the Western States Trail. Enjoy rugged trail scenery and a memorable day on the dirt.

Run the Catalina Island Marathon, 10K or 5K in Avalon on March 14, 2026 and explore scenic coastal trails through the Catalina Island Conservancy. Now in its 48th year, this storied off road race is a must for adventurous runners.

Experience the Marin Ultra Challenge on March 14, 2026, a scenic yet demanding trail run through the Marin Headlands and Muir Woods with 50 Mile and 50K options showcasing coastal views, redwoods and technical single track. Limited to 450 r..