Trail Running Calendar California 2025-2026

The Mount Baldy Run to the Top is a challenging 7-mile trail race held in Mount Baldy, California. Celebrating its 60th running, the race starts at 6,000 feet elevation and ascends 4,000 feet to the summit of Mt. Baldy, the third tallest mountain in Southern California at 10,064 feet.This event serv..

The Gypsum Canyon Wilderness 5k is a trail running event held at Gypsum Canyon Wilderness in Anaheim, California. The 3.3-mile course features a mix of fire roads and single-track trails with an elevation gain of 350 feet, offering a moderately challenging run through natural terrain. Participants w..

The Stevens Creek Striders Reservoir Run, held in Cupertino, California, offers a scenic trail running experience with distances of a half marathon (13.2 miles), 11K, and a 2.5-mile Lollipop Loop charity run/walk. The course features shaded single-track trails and open ridge vistas, with challenging..

Tanri Lake Race takes place in Miramonte, California, at about 6,000 feet elevation. The event offers two formats built on 5-mile laps: a relay for teams of three, where each runner completes four laps in order; and an individual race, where runners complete as many laps as possible in a 10-hour win..

The Mendocino Running Festival, held in Mendocino Woodlands Park, California, offers a unique running experience amidst ancient redwoods and scenic trails. Participants can choose from a 10K, half marathon, or timed 6- and 12-hour races on a challenging 6-mile loop featuring 875 feet of elevation ga..

Noble Canyon 50K/15K is an ultramarathon set in the mountains east of San Diego, California, near Pine Valley. The event offers two distances—50K and 15K—run on National Forest land. The course is described as mostly runnable single-track, delivering rugged terrain, spectacular mountain views, and a..

Skybreaker Racing’s Mammoth Bar Trail Runs take place in the Mammoth Bar OHV Area within the Auburn State Recreation Area, near Auburn, California. The event offers three distances: Half Marathon, 10K, and 5K, designed for a high-vertical, rugged trail experience. Participants can expect steep climb..

Diablo Trail Run takes place at Mount Diablo State Park’s Mitchell Canyon Trailhead in Clayton, CA. The event offers multiple distances: 4 miles, 10 miles, Half Marathon, Marathon, 50K, and a Kid’s Run. The 4-mile course is relatively flat and fast within Mitchell Canyon, while the longer races rise..

South Hills Single Track Trail Run takes place at Calero County Park in San Jose, California. The event offers a full slate of distances: 1 mile kids run, 5K, 10K, 9 mile, half marathon, 16 mile, trail marathon, and 50K. The course blends single-track trails and dirt roads, showcasing oak trees, hil..

The Freedom Running Last Man Standing - Hanford will take place in Hanford on Saturday 13 September 2025.

Pincushion Hill Climb takes place in Friant, California, near Millerton Lake. It features two events: a 1‑mile hill climb and the Mountain Goat edition. The 1‑mile race is a straight ascent starting at the San Joaquin River Trailhead in the South Finegold Picnic Area and finishing at the top of Pinc..

Garin Park XC Challenge 2025, held at Garin/Dry Creek Pioneer Regional Parks on Garin Avenue in Hayward, California, is a 5K cross-country race described as a tough yet scenic run along the Garin Park ridge. Now in its 21st year, the event is part of the Pacific Association of USA Track & Field Cros..

The Freedom Running Last Man Standing will take place in Clovis on Saturday 13 September 2025.

Berkeley Trail Adventure is an Inside Trail Racing event set in Berkeley, CA, spanning Tilden Regional Park and Wildcat Canyon. Distances offered are 50K (31 miles), 35K (21.6 miles), half marathon (13 miles), and 10K. The course blends technical dirt trails and non-technical fire roads, with about..

Totally 80's Fast Times in Huntington Beach, organized by CaliFlow Runs, offers a throwback festival-style race weekend at Bolsa Chica State Beach (Lot 25) in Huntington Beach, CA. The event features three distances—5K, 10K, and Half Marathon—plus a Kids Dash. Runners enjoy a flat, scenic, car-free..

Kiwanis River Run takes place at George’s River Ranch in Fresno, CA, offering four distances: 10K Trail Run, 5K Run/Walk, 2-Mile Fun Run/Walk, and Kids 1/4 Mile Fun Run. The course features three scenic, river-side off-road routes along the San Joaquin River, set beneath trees with birdsong. The eve..

Double Peak Challenge is an outdoor trail race in San Marcos, California, offering a 10K competitive option, a 5K Fun Run, and a Kids Trail Trot. The course starts at the San Elijo Recreation Center and climbs to Double Peak Summit, delivering about 1,176 feet of elevation gain to reach 1,558 feet a..

Kiwanis River Run is held at George’s River Ranch on CA-41 in Fresno, California, along the San Joaquin River. The event offers four distances: 10K Trail Run, 5K Run/Walk, 2-Mile Fun Run/Walk, and a Kids 1/4 Mile Fun Run for ages 10 and under. Runners traverse three scenic off-road routes along the..

The Great American Pizza Run takes place in Long Beach, California, at 5400 E Ocean Blvd, offering multiple pizza-themed distances: 5K (The Fast Slice), 10K (The Deep Dish Dash), Half Marathon (The Full Pie Half), 1-Miler (The Cheesy Mile), and a Kids Dash (The Little Mozzarella Sprint). The course..

The Rocky Ridge Trail Half Marathon is a challenging trail race held in the scenic Las Trampas Wilderness near San Ramon, California. Scheduled for September 20, 2025, the event features a demanding half marathon known for its tough hills and breathtaking views, offering runners a unique wilderness..