Event details subject to change. Please confirm all information via event website.
RMRR 5K
Clement Park 7306 W. Bowles Avenue, Littleton, CO, United StatesEveryone – 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 show up an hour before the start and we’ll get you ready for your race. It’s an […]
Tony O’Rourke Memorial Snowshoe Shuffle
Strap on your snowshoes and join us as we march around the beautiful Beaver Creek Golf Course for the inaugural Tony O'Rourke Memorial Snowshoe Shuffle! There will be 2 distances to choose from, a 5K & a 10K, as well as a FREE Kid's Fun Run through Creekside Park! The event will conclude with brunch […]
Splash & Dash II
Louisville Recreation and Senior Center 900 Via Appia Way, Louisville, CO, United StatesJoin us for a Kids’ Splash & Dash Series this winter at the Louisville Rec Center! Get ready for a fun, energetic winter racing experience! Each event features an indoor swim in the Louisville Rec Center pool, followed by a run on the outdoor trail. In the case of bad weather, the run will move […]
COPS 15K
Colorado State Patrol Track 2054 Quaker Street, Golden, CO, United StatesThe Colorado Outdoor Pace Series ("C.O.P.S.") is a unique set of races presented by Golden Mountain Runners and Golden Endurance. Race Dates January 7, 2026 - 5K January 21, 2026 - 45 Minute Timed Race February 4, 2026 - 10K February 18, 2026 - 60 Minute Timed Race March 4, 2026 - 15K March 18, […]
Polar Plunge 5K
Are you ready for the COOLEST event of the season! Whether you're a daring plunger, a speedy 5K runner/walker, or a thrill-seeker ready to do BOTH, the Polar Plunge & 5K promises non-stop excitement and heart-pumping fun - all while supporting Special Olympics Colorado. Take the plunge into a chilly pool, dash through the 5K, or double […]
PPRR Nielson Challenge
North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United StatesRace Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Runnin’ of the Green Lucky 7K
Feeling the luck o' the Irish? Lace-up and chase the rainbow in Denver’s favorite Irish-themed run! Join us at Washington Park for some shenanigans! Runnin' of the Green (ROTG) is a family-friendly 7K and 2 Mile race/walk celebrating Irish traditions, Saint Patrick’s Day, and Spring! The event promises to be a day filled with Irish fun, live music, awards, […]
Run Through Time Marathon
The Annual Run Through Time Marathon, Half Marathon, and 2 Mile Run will take place on Saturday, March 11, in Salida, CO. These beautiful, challenging courses are run on dirt/jeep roads and narrow, hilly single track with fantastic views of Salida and the Arkansas Valley. Elevations range from 7000-9000 feet. Foot travel only. There is […]
Lucky Brew Race
Start your St. Patrick's celebration with either a 5k, 10k or 15k on the Kyger and Poudre River Trail. All participants will receive chip timing, free finish line video footage & photos, rockin’ Lucky Brew Socks, free green beer and a great after party (recommended 18+) complete with food trucks and awards ceremony for top […]
CMRA Spring Spree 10K
The Spring Spree Race is an out-and-back 10K running and 5K race walking course that starts and finishes north of the Halfpenny Brewing Co. across E. Arapahoe Rd. The race starts on S. Forest Way, a north-south street on the west side of the Kaiser Permanente Medical Center. There is a pedestrian cross walk with […]
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.