Event details subject to change. Please confirm all information via event website.
Together with Tanzania 5K
Timed 5K for all ages and paces! Mostly flat, lots of shade, winds through a quiet Greenwood Village neighborhood. This certified 5K course begins and ends in our parking lot. […]
Trail Sisters Half Marathon
Come run a Half Marathon or our new 10k that twist and turn through sage brush and ponderosa pines, all while providing stunning views of the Collegiate Peaks. Located in […]
RINO 5K
Take the roads of the RiNo Art District this fall for a fun run or walk through Denver’s most vibrant neighborhood. Sign up for the 5K or 1 mile, or […]
Rattlesnake Rumble Trail Race
Highland Homecoming 5K
Join us for the Annual Highland Homecoming 5k Run & Walk. This race benefits the middle and high school cross-country teams.
Imogene Pass Run
The Imogene Pass Run (IPR) is a 17.1 mile point-to-point mountain race within the western San Juan mountains of Colorado. The course runs along a route which connects the towns […]
Tater Trot 5K
The Colorado Potato Festival will be kicking off at Chapman Park in Monte Vista with the annual Tater Trot 5K. This sponsored event is a great addition to the festival […]
The Denver 5K
THE Denver 5k! Denver's Iconic Sloan Lake is the setting for the return of 'THE Denver 5k'. Celebrate with friends and family as you race around the lake in the […]
6 Dot Dash
The National Federation of the Blind of Colorado 6 Dot Dash presented by Comcast is an annual 5k event to raise awareness and funds for the National Federation of the […]
Spirit of the Valley Run
Helping to Heal! The Spirit of the Valley Run, Walk 'N Roll 1K and 5K timed races are set for Saturday September 9, 2023. Runners, walkers and rollers are all […]
For The City Network 5K
Join us for the For the City Network 5K, a community run/walk dedicated to strengthening neighborhoods, supporting families, and creating positive change across Northern Colorado. This event is open to […]
Canceled Run4Hope 5K
Run4Hope 5K for Schools is an in-person competitive 5k, 2-mile Family Color Run (or walk), followed by a huge Community Block Party and free BBQ to celebrate HOPE in El […]
Horsetooth Open Water Swim
Swim a 10K, 2.4 miles, 1.2 miles, 1000 meters, or 250 meters in the Horsetooth Reservoir. The Horsetooth Open Water Swims incorporated as an independent 501(c)3 not-for-profit organization. Our current […]
Lead King Loop
Join us for a great day of running through the spectacular fall colors in the heart of the Elk Mountain Range. Run, walk, or hike the 25k loop around Lead King […]
Tri the Rock Kids Tri
We welcome you to our 17th annual youth triathlon! Tri the Rock is designed for, and open to youth ages 5 to 18. Come for a great day of fun, food, […]
Nun Run Half Marathon
Do you support life at all stages from conception until natural death? Do you believe every human being should be treated with the utmost dignity and the respect they deserve? […]
El Grito 5K
The 31st El Grito 5k run & walk will start at 9:00 am on the MSU Auraria Campus, 900 Auraria Parkway, Denver, CO 80204. Race fee is $30/$35 on race […]
Colorado Run for the Fallen
Join us at Palmer Lake Regional Recreation Area for the Annual Colorado Run for the Fallen—a 6-hour untimed run/walk/ruck hosted by the Honor and Remember – Colorado Chapter. This moving […]
Mad Dash 5K
Get ready for The Mad Dash 5K—a wildly fun run through the fairways of the Mad Russian Golf Course! Experience a one-of-a-kind course as you race across lush fairways, rolling […]
9/11 Heroes Run
The 9/11 Heroes Run is a 5k race honoring our heroes: those lost on September 11th and in the wars since, as well as the veterans, active duty, first responders, […]
Honey Bee Hustle
Are you ready to challenge yourself? We will have a 1-mile loop open for 1 ½ hrs. Who can run the most loops in 1 ½ hrs? Who can run […]
Tiger Prowl 5K
The Tiger Prowl 5K is a fabulous annual community event and tradition run by the Lakewood High School Foundation to support all the talented and ambitious student programs offered. All […]
Springs Kids Triathlon
A kids Triathlon for kids aged 6-14 years old. Its a fun and simple event for kids that consists of swimming in a pool, biking on a trail and then […]
FalconTri
Welcome to our first-ever FalconTri! Hosted by the U.S. Air Force Academy's Triathlon Club's cadets, this race features a super sprint triathlon (300m pool swim, 5k bike, 1k run) around […]
Canceled Flying Falcon Downhill Mile
Looking to run the fastest mile you possibly can? Dropping 220 feet, the Flying Falcon Downhill Mile will allow you to run the absolute fastest mile possible. Taking place on […]
Run Rabbit Run Ultra
The Run Rabbit Run courses are very much like life, in that there are many, many little and not so little ups and downs in between the obvious highs and […]
Severance Glow 5K
Welcome to Severance's Severance Days 5K presented by Severance Middle School the Town of Severance with proceeds benefitting Severance Middle School. Held at the Severance Community Park. Severance Days 5K […]
Break of Dawn Trail Race
Be 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 […]
Pikes Peak Ascent
The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at […]
Superhero 5K/10K
A beloved community tradition, the Superhero Run invites runners, walkers, and families of all ages to suit up in their favorite superhero costumes and race for a cause. With a 5K, […]
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