Collegiate Peaks Trial Run

Buena Vista Community Center 715 E Main St, Buena Vista, CO, United States

The Collegiate Peaks Trail Run takes place in Buena Vista, Colorado and offers two race distance options - 25 miles and 50 miles.  However, the Forest Service/Bureau of Land Management officials […]

Niwot’s Challenge

Sedalia Post Office 4195 Douglas Ave, Sedalia, CO, United States

Niwot’s Challenge is a very difficult, grass-roots, ultramarathon in Colorado’s Front Range. It is modeled after the arduous Barkley Marathons in Tennessee, and the historic More and More Difficult 50K […]

Duck Waddle 5K

Lake Estes Marina 1770 Big Thompson Drive, Estes Park, CO, United States

The DUCK WADDLE 5K race begins at east side of Estes Park Parking Structure. Each runner and walker will follow the scenic Lake Estes Trail counterclockwise to the finish line (west of […]

$30 – $40

Hope House 5K

Apex Center 13150 W 72nd Ave, Arvada, CO, United States

Our 12th annual Hope House 5K & Fun Run will take place on Saturday, May 3, 2025 at Apex Center (13150 W 72nd Ave, Arvada, CO 80005)! It will be a fun-filled […]

Furry Scurry

Washington Park - Denver 701 S Franklin St, Denver, CO, United States

The Furry Scurry is an annual, fun-filled festival and two-mile dog walk at Denver’s Washington Park to benefit the animals at the Dumb Friends League.  No matter where you scurry, every step you […]

The PASTA Run

Louisville Community Park 955 Bella Vista Dr, Louisville, CO, United States

Returning after 5 years and a huge request from our followers...The PASTA RUN will return to Louisville in 2025!  What more do runners like but Pasta....this event and run is […]

$40.00
Event Series Walk MS

Walk MS

City Park - Denver 1700 N York St, Denver, CO, United States

Walk MS 2024 includes a powerful new experience where you’ll witness how your support changes the lives of people with MS and gets us closer to our ultimate goal: a […]

Run for the Trees

Mahaffey Park 3285 W 22nd St, Loveland, CO, United States

We’re helping Parks and Rec celebrate Loveland's Arbor Day. Come enjoy food trucks, live music, and a 2 mile fun run to help raise money for the tree planting fund. […]

Hayden Cog Run

Hayden Town Park 229 South 3rd Street, Hayden, CO, United States

The Hayden Cog Run is one of the longest consecutively run races of the Steamboat Springs Running Series and in the state of Colorado! This is a Routt County Classic […]

Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.