4 Mile

The Greenland Trail Race offers four outstanding distances in southern Douglas County. Run the 4 Miler, the 8 Miler, the 25K, or tackle the 50K ultramarathon, Colorado’s fastest 50K! With Pikes Peak as your backdrop, you’ll cruise over a…

Due to a road reconstruction project in Cherry Creek State Park, the Chilly Cheeks series will be limited to a single event in 2024, held on 2/24/2024. The road was wiped-out during a May flood, essentially splitting the park into two…

If running is your love language - you won't want to miss our Valentine's Day 4 Mile! Find a sweetheart (or run with your sweetheart!). Share your love story! #Run4TheLoveOfIt RACE HIGHLIGHTS Share your Love Story on our…

Join us for a fun progressive series in Westminster! Series participants will enter at their own pace - running a 1 mile race in the first event and adding a mile at each event to complete a full 10k (6.2 Mile) race at the end of the…

Colorado Veterans Project invites everyone to come together to celebrate the 4th of July the way it was meant. Celebrate your Freedom while helping us raise money for local Veterans nonprofit organizations in Colorado. The Freedom 4…

This races offers two distances on Emerald Mountain, 12k (ends up being closer to 7.75 miles long) and a 4 mile run. This scenic course will begin at the base of Howelsen Hill and tour Emerald Mountain through aspen lined single track.…

Let the trail races begin!! This is a challenging trail run on the scenic single track trails of historic Howelsen Hill, Steamboat’s outdoor playground. The trails of Emerald are beautiful this time of year with abundant aspen trees and…

Everyone – slow, fast, or in-between –  can win  at RMRR Trophy Series races.  With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great goal to shoot for whatever your speed.  Just…

Since 1973, the Mile High United Way Turkey Trot has been a Thanksgiving tradition, drawing nearly 9,000 people to Washington Park each year! By participating in this four-mile run/walk, you are joining Denver’s greatest Thanksgiving…

The Slacker races are always held on the 4th Saturday in June, and in 2025, that means Saturday, June 28th! We’re excited to announce a new change for next year:  wave starts will be enhanced to help ensure a smoother race start. Be sure…