Trail Running calendar near Aurora 2026-2027

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.

Event Details Ring the Springs is a trail running event taking place on June 20, 2026, in Colorado Springs, Colorado. The event offers three distance options: a 100K, a 50K, and a 35K. All races start and finish at Rock Ledge Ranch, located..

Explore Colorado's peaks in this series of five mountain races. Run four scenic half marathons and a challenging 25K across the state from June to September. Participants can choose to tackle three, four, or all five events.

The Timberview Trail Run returns for its seventh year at Lory State Park. Choose from scenic 5K, 5-mile, or 10-mile trail courses with views of Horsetooth Reservoir. Participants receive a shirt, finisher medal, and post-race refreshments.

Kick off Independence Day with a 5k run/walk in Winter Park, Colorado. The scenic route travels along the Fraser River Trail and finishes at the Rendezvous Event Center for a post-race party.

High elevation trail runs in Como, Colorado on July 10 and 11, 2026. Distances range from 10 mile to 100 mile and include a point to point 100k and a nonrepetitive 100 mile route through alpine meadows, mining sites and national forests.

Experience a historic mountain run in Manitou Springs. This 12.6 mile course ascends Pikes Peak to an elevation of 10,200 feet before descending to the finish at the Barr Trailhead.

The Pikes Peak Ultra on July 25, 2026, features trail races from 20K to 50 miles in Colorado Springs. Starting at Bear Creek Park, the course includes views of Pikes Peak and a summit of Mt. Rosa for longer distances. Organized by Mad Moose..

Course and Terrain The Summit 200 is a 200-mile single-loop ultramarathon in Summit County, Colorado. The non-repetitive course utilizes hiking trails, 4WD roads, and recreation paths, with the majority being single-track trail and infreque..

Experience an epic 200 mile point to point team relay from Fort Collins to Steamboat Springs. Run through the heart of the Rocky Mountains and over two scenic mountain passes in this ultimate Colorado road race.

Experience high altitude trail running at an average elevation of 10,600 feet in Fairplay, Colorado. Choose between a technical ultra marathon or a flowing half marathon through the scenic South Park Valley.

Experience high alpine racing through the scenic singletrack and forest trails of Winter Park Colorado. Join a point to point mountain adventure with distances ranging from a 10K loop to a technical 50K ultra.

Enjoy a series of midweek trail races ranging from 5 km to 12 km at Lory State Park. This low key series features chip timing, post race pizza, and vintage shirts for all participants.

Event Overview Run the Rockies Trail Race is a trail running event held in Frisco, Colorado. The event offers three distances: a 5 km, a 10 km, and a half marathon. All races start and finish at the Frisco Nordic Center on Recreation Way. C..

Event Details The Into the Hills Eltuck 10K is part of a midweek trail series held in August. This particular event takes place on Tuesday, August 11, 2026. The event is held at Lory State Park, specifically at the Eltuck Picnic Area in Bel..

A four-race trail series on Tuesday evenings in August in Lory State Park. Distances include 5K, 10K, and 12K routes with varying elevation. Pizza and drinks follow each race, with series awards at the end.

Run along Boulder Reservoir on flat, mostly dirt trail courses with sweeping Rocky Mountain views. Choose from 10K, 3 4 marathon, half, full marathon or relay, with USATF certified courses, a shirt and a finisher medal.

Experience the first ever trail race through the iconic red rocks of Roxborough State Park. Tackle 50 miles or 50k of technical singletrack and high country terrain before enjoying a finish line celebration with food trucks and local brew.

Hit the trails at Cheyenne Mountain State Park with this trio of scenic races. Choose from a challenging 25K mountain course, a 10K trail race, or an accessible 5K run/walk. All events support the park and feature chip timing on beautiful s..