Arapahoe Warrior 5K

Arapahoe High School 2201 E. Dry Creek Rd, Centennial, CO, United States

Come out and support the Arapahoe Warrior Cross Country team at the 3rd annual Arapahoe Warrior 5K. $10.00 of every registration goes directly back to the Arapahoe Cross Country Booster team.

Kennebec Mountain Run

La Plata Canyon Durango, CO, United States

The Kennebec Mountain Run is a tough, scenic 15ish-mile trail run through the La Plata Mountains, just west of Durango in southwest Colorado. Some people like to say that KMR is a perfect tune-up for the Imogene Pass Run, but really, Imogene is a perfect cool-down after Kennebec, and a wonderful introduction to the La Platas!

Unicorn 5K

Highland Heritage Park 9651 S Quebec St, Highlands Ranch, CO, United States

Run, walk, frolic, or gallop The Unicorn 5k & Kids Dash in Highlands Ranch! - 5k FINISHER MEDALS - TIE-DYE UNICORN TEE - COTTON CANDY - COSTUME CONTEST - BALLOON ART - FACE PAINTING If smiles, rainbows, and shimmering FINISHER MEDALS are your thing, then this race is for YOU! EVERY 5k finisher receives a […]

PPRR Nielson Challenge

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

Race 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 […]

Chile Harvest Triathlon

Socorro City Pool 107 Franciso De Avad, Socorro, NM, United States

The Socorro Chile Harvest Triathlon has been running for 25+ years!! This race is a 400 m swim in the City of Socorro pool, with a 20 km bike ride through Socorro and New Mexico Tech campus, ending with a relatively flat 5 km run through residential parts of town. The race is well supported […]

PPRR Nielson Challenge

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

Race 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 […]

Walk Like MADD

Sloan's Lake Park 1700 Utica Street, Denver, CO, United States

Walk Like MADD is MADD's signature fundraising event to help us raise both awareness and funds to end drunk driving and fight drugged driving. With every step taken and each dollar raised, walkers are supporting MADD’s lifesaving mission to keep our families and communities safe.

Splash Mash Dash Kid’s Triathlon

Recreation Center at Northridge 8801 Broadway, Highlands Ranch, CO, United States

The Splash Mash Dash Kids Triathlon is the perfect for kiddos looking for a way to "TRI" the sport of triathlon or tune up their skills for a larger race. The race will offer kids a safe and fun environment for racing. To encourage participation and enjoyment for all, The Splash Mash Dash Kids Triathlon […]

Pearl Street Mile

Mountain Sun Pub and Brewery 1535 Pearl St, Boulder, CO, United States

Join Troop Events on Saturday August 6th for the 25th annual Pearl Street Mile, a criterium multi-lapped course that starts on Spruce St, and completes 3.75 laps around the Boulder Court House and up the Pearl Street Mall. This year, the race is the USATF Colorado One Mile Championships! There will be a Kids 800m, Family and Friends 1-Mile, time based 1-Mile waves, Masters 1-Mile races, and Elite Open 1-Mile races.

$35

I’m Bound for Boston Marathon/Half

Northfield High School 5500 Central Park Blvd, Denver, CO, United States

Have you been dreaming of running Boston?  Need to shave a few minutes off your time to qualify?  Looking for the perfect course to set a PR?  Regardless, if you want to run Boston or not, THIS is the event for you! We're racing around Northfield High School, and the course is a 1-mile super […]

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.