Event details subject to change. Please confirm all information via event website.
Break of Dawn Trail Race
North Table Mountain 4788 CO-93, Golden, CO, United StatesBe part of BeyondHome's first trail race at North Table Mountain! This scenic and challenging 8.6-mile race supports BeyondHome in helping families build stable, self-sufficient futures through housing, education, and support services. Be part of something extraordinary at the first-ever trail race in North Table Mountain Park! Every step you take helps BeyondHome empower families […]
Hometown Half Marathon
Westminster Promenade 10600 Westminster Blvd, Westminster, CO, United StatesJoin us for the annual Hometown Half Marathon & 5k/10k! A run local-themed event that is perfect for the whole family. The fun includes great swag (designer shirt, custom medal), chip-timing, live results and awards, pacers for half marathon free photos, a "biggest team" contest, a kids' dash, great post-race food, and plenty of fun! […]
Loveland Lake to Lake Triathlon
Loveland High School 920 West 29th St., Loveland, CO, United StatesLoveland Lake to Lake Triathlon has welcomed athletes from Northern Colorado, this entire state, region, country, and outside the USA for 24 years and we are excited about our 2025 edition. Athletes have ONE OPPORTUNITY each summer to compete at this beautiful venue. Loveland CO~ one opportunity, one time each summer on a Saturday morning […]
Howelsen Hill Trail Run
Olympian Hall 845 Howelsen Pkwy, Steamboat Springs, CO, United StatesLet 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 wildflowers. Distances: 8 mile and 4 mile
Rayden’s Athletic Friends 5K
Sergeant Blake A. Harris Skateboard Park 3430 Skateboard Lane, Pueblo, CO, United StatesJoin us for a pet-friendly 5K Run/Walk where your four-legged friends are welcome! (All dogs must be leashed throughout the event.) Thanks to our generous sponsors who have helped offset the costs of t-shirts and event organization, your participation fee can go directly where it's needed most - supporting PAWS through donations of food and […]
Tails on the Trail 5K
Salida Steamplant Sacket and G Streets, Salida, CO, United StatesThe Tails on the Trail 5K is a family and dog-friendly 5k race with proceeds benefiting the life-saving work of Ark-Valley Humane Society. Race this with or without your dog on May 22nd at Loyal Duke's Dog Park in Salida.
Heart Walk
Sloan's Lake Park 1700 Utica Street, Denver, CO, United StatesWe're all tied to heart disease and stroke in some way, and we must change that. Join your friends, family and co-workers to be a relentless force for a world of longer, healthier lives. By registering for the Heart Walk today, you are taking the first step to save lives. Every walker who joins, every […]
Estes Park Backyard Ultra
Estes Park High School 1600 Manford Ave, Estes Park, CO, United StatesThe Backyard Ultra with the views. The Backyard Ultra is a form of Ultra race where runners must complete 4.167 miles in less than one hour, every hour, until only one runner remains to complete a lap. This runner is crowned the winner and only finisher, while all others will be marked as DNF. There is […]
Mustang Mile
West Grand High School 208 N 12th St, Kremmling, CO, United StatesThe Mustang Mile is a timed Run/ Walk in Kremmling, Colorado. This event will kick off the Kremmling Days Parade with a route through Main Street. Participants will run this straight downhill course with spectators to cheer them on. Could this be the fastest road mile course in Colorado? Come join us and let us […]
Run Devils Tower Half Marathon
Devils Tower WYO 110, Devils Tower, WY, United StatesRun in the shadow of the First US National Monument…..Devils Tower, Wyoming and view the Tower from exclusive perspectives as you run on the historic Campstool Ranch. Come stay for an entire weekend of family friendly events including 3 race distances, beer and wine fest with live music, hay rides, and Chuckwagon dinner Saturday night. […]
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.