Niwot’s Challenge
Sedalia Post Office 4195 Douglas Ave, Sedalia, CO, United StatesNiwot’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 StatesThe 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 […]
Furry Scurry
Washington Park - Denver 701 S Franklin St, Denver, CO, United StatesThe 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 StatesReturning 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 […]
Run for the Trees
Mahaffey Park 3285 W 22nd St, Loveland, CO, United StatesWe’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 StatesThe 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 […]
Longmont Half and 5K
Sandstone Park 3001 CO 119, Longmont, CO, United StatesCelebrate Independence Day with us, and join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!
Colorado Marathon
Washington Park - Fort Collins 301 Maple St, Fort Collins, CO, United StatesMarathon, Half Marathon, 10k, 5k and 3-Person Marathon Relay. Marathon, Marathon Relay and Half Marathon runners get to run down the scenic, downhill Poudre Canyon to the finish in Old […]
Moose Mudder
Altitude Elementary School 27300 East Southshore Drive, Aurora, CO, United StatesPlease join us for the Annual Moose Mudder! This is a community event that will consist of an untimed 1k fun walk/run and a timed 5k followed by an optional […]
Fairmount 5K
Fairmount Park Golden, CO, United StatesThe Fairmount 5k has been an essential fundraiser for almost 30 years at Fairmount Park. This year, following the 5k run, walk and fun run we invite you to stay […]
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