Trail Running calendar near Larkspur 2026-2027

We have found 78 Trailruns within 80 miles of Larkspur. See below where and when you can find the races.

Lucky Lyons is a St. Patrick's Day themed run in Lyons, Colorado, featuring 5K and 10K races on mixed terrain. The 10K serves as a Bolder Boulder qualifier. Participants receive finisher dog tags, with awards for top age group finishers.

Events The event includes three races: A trail marathon A trail half marathon A 2 mile run Course and Rules The courses take place in Salida, Colorado, on the Arkansas Hills Trail System and use dirt roads, jeep roads, and narrow, hilly s..

April 2026

Celebrating its 11th year, the Mountain Ridge Trail Race winds through the rolling hills of Highlands Ranch, Colorado. Runners can choose from four distances, all on scenic dirt trails with rewarding front range views. The event is cupless,..

The Rattler Trail Race winds through the scenic singletrack of Palmer Park in Colorado Springs. Runners will enjoy panoramic city views and rock formations on a course with technical trails. Distances range from a 5K to a 50K.

The Royal Gorge Groove offers trail races along the rim of the scenic Royal Gorge in Colorado. Choose from distances from a 50K ultra to a 5K, all finishing at the Royal Gorge Ranch & Resort. Experience rugged, historic trails with full eve..

May 2026

Run the fast trails of Greenland Open Space in Colorado this May. Choose from four distances, from a 4-mile race to a 50K championship event. All runners receive a tech shirt and medal, with pizza waiting at the finish.

Niwot's Challenge is a secretive, map-and-compass adventure in Colorado for experienced navigators. It features unsupported loops with significant off-trail travel and elevation gain. Entry is by application only for a limited field of part..

Run through the stunning red rock scenery of Garden of the Gods on traffic-free roads. Choose from a 5K, 5-mile road or trail race, or a 9.5-mile Double Take challenge. All participants receive a custom shirt and finisher's medal.

Celebrate the 36th anniversary of this Colorado trail run. Choose between a 25-mile or 50-mile course starting near Buena Vista. The route offers high-altitude running on historic trails with significant elevation change.

The Valkyrie Trail Race is a women's trail running event in Cheyenne Mountain State Park. Choose from six distances, from 4 miles to 50K, on courses with meadows, singletrack, and technical paths. Registration includes park entry, a shirt,..

Ram Party Trail Runs offers a scenic weekend on the trails around Rampart Reservoir near Woodland Park, Colorado. Choose from five distances, including a point-to-point 60K and a vert-heavy 50K. The event features stunning views of Pikes Pe..

The Farish Trail Race takes place on May 23, 2026 at the Farish Recreation Area in Woodland Park, Colorado. Participants can run a half marathon, 10K, 5K, or a free kids' one-mile event. The first 200 finishers get a special hat.

Celebrate Memorial Day weekend with the Spirit Trail Race in Buena Vista, Colorado, a scenic trail event with marathon, half marathon and 9k options. Start in town square, enjoy Paddlefest fun, and support local nonprofits.

Event Overview The North Fork 50 Ultras is a trail running event held in Buffalo Creek, Colorado, southwest of Denver. The event offers two distances: 50 miles (with approximately 6,425 feet of elevation gain) 50K (31.1 miles, with approxi..

A 20K route around Turquoise Lake in Leadville, CO, running clockwise from Matchless Boat Ramp with paved and single track sections. Adult entry is $40 and under 18 run free. Parking is limited and a day use fee may apply.

The Fish Hatchery 5K Trail Run will take place in Leadville on Sunday 31 May 2026. You can run 5 kilometers.

June 2026

Event Overview The Great Divide Ultra is a trail running festival held in early June in Divide, Colorado. The event takes place on the rolling meadows of Mueller State Park. The courses are 100% smooth single and double-track trail. Distanc..

Aiden's Adventure 5k is a community run/walk honoring a young child's memory. The event features a flat dirt trail 5k, a kids' dash, and family-friendly activities like carnival games and a butterfly release. All proceeds support local char..

The Barr Lake Trail Race offers a flat, fast course on dirt trails around the scenic lake. With distances from 5K to 50K, runners can enjoy views of the Colorado Front Range. The event is in its seventh year and features a cupless initiativ..

On June 14, 2026 in Colorado Springs, the Garden of the Gods event offers a 10 Mile, 10K and a trail run through 300-foot sandstone formations around Balanced Rock. Registration opens March 1, 2026.