Event details subject to change. Please confirm all information via event website.
Horsetooth Half Marathon
Welcome to the 53rd running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you’ll tackle the challenging hills of Centennial Drive along the shorelines of the […]
Do Not Stop Half Marathon
Question: Is it supposed to be DO NOT STOP, or DONUT STOP? Answer: YES! Like Running or Walking? Love Donuts? This race is for you! Join us for the annual Donot Stop 5k/10k and half marathon! A donut-themed event that is perfect for the whole family.
Fairmount 5K
The 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 and visit with your friends while enjoying some music, a pancake breakfast and dessert in the park. All students, staff, friends, family and the Fairmount […]
Thelma and Louise Trail Race
Because a girls weekend should include an exciting challenge, we present Thelma and Louise Marathon Half Marathon and 15K! There is also a marathon and 50K option! Bring your best girl friends to Moab and experience remoteness of Moab's Behind the Rocks area. See the towering red rock walls of Lone Rock, believed to have […]
NoCo Half Marathon
Spring is the season of renewal and running. We hope you join us for a fun adventure that embodies the spirit of springtime at the beautiful Boyd Lake State Park! Choose from the Half Marathon (13.1 mile) or 10K (6.2 mile) for your run adventure. This course is on smooth paved walkways with about three quarters of a mile […]
Runs With Scissors Races
The race will be held at Riverdale Regional Park, Pavilion B, in Brighton Colorado. Proceeds benefit INSPIRATIONFIELD. INSPIRATIONFIELD works with the developmentally disabled in Otero County (La Junta, Colorado) and surrounding area. The race will be held on a loop course of 1.31 miles around Mann-Nyholt Lake. The half marathon is 10 laps, the marathon […]
Royal Gorge Groove Trail Runs
Prepare for some fun in Cañon City! Enjoy scenic views along the rim of the Royal Gorge, 900 feet above the Arkansas River. All races will start/finish at the Royal Gorge Ranch & Resort. Distances include a 50K, 30K, 20K, 13K, 5K and Kids Run. Make a weekend out of it with river rafting and […]
Cheyenne Mountain Trail Race
Celebrating its 15th year, the Cheyenne Mountain Trail Race benefits Achilles Pikes Peak, a nonprofit that helps athletes with disabilities to enjoy the trails and live rich, active lives. Our 50K, 25K, 7M and 4M courses include some of the best trails on the Front Range, runnable and challenging across miles of grassy meadows and […]
SOAR 5K
Soar like an eagle on this 5K Run (3.1 miles) that includes a scenic double loop course around Daniels Park and the Welchester Elementary community. Enjoy the challenge of lower grade hills in this event that is open to runners of all ages and abilities.
Earth Day 5K/10K
The Loveland Classic 5k, 10k, & Kids 1 Mile features a beautiful course on the Centerra Trails around Equalizer & Houts Lakes. After you cross the finish line, be sure to stick around for an after party featuring a coffee truck, local vendors, and overall and age group awards. This event is a fundraiser for […]
Bigfoot Half Marathon
A road half marathon & 5k in beautiful Estes Park, finishing downtown amidst the infamous Bigfoot Days Festival. This is a scenic run just outside Rocky Mountain National Park. Finish in Bond Park surrounded by live music, Bigfoot celebrities, and a FREE festival featuring 50+ vendors and booths. Once you're done racing, grab your first […]
Tri Nebraska Triathlon
We are a local sprint triathlon focused on the athlete experience in North Platte, Nebraska. We are in our 23rd year. Our course is mostly flat out and back race with a 500 yard indoor pool swim, 14 mile bike and 5k run. Our early season date and friendly atmosphere are ideal for the seasoned […]
Strut for Mutts 5K
It is the Journey Home Animal Care Center's Strut for Mutts!
Run for the One 5K
Please join us for our 17th Annual "Run for the One" at Red Leg Brewing Company benefitting our clients and their families affected by Autism in the Pikes Peak Region. April is Autism Awareness Month, please bring your friends and family to join us in supporting our community by walking or running.
Spring Runoff 10M
The American Driving Academy and the Southern Colorado Runners welcome you to the 48th Annual Spring Runoff Sunday, March 2nd, 2025. Join us for the 48th edition of Pueblo’s oldest and largest running event. The American Driving Academy, a locale company, is the main sponsor of our race and a portion of race proceeds benefit […]
Unicorn 5K
Ready to gallop around Denver with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k at Great Lawn Park to kick off your spring running season! You'll earn a sweet tee shirt and a flashy unicorn finisher medal!
Flying Pig 5K
JOIN US FOR THE 17TH ANNUAL FLYING PIG 5K The Flying Pig 5K is a fundraiser that will benefit children’s programs at Foothills Gateway, including the Family Support Services Program (FSSP). Join us at Spring Canyon Park on Sunday, April 26 to run, walk, or roll this fun course. You will receive a race shirt the […]
Splash & Dash III
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 […]
Shiprock Marathon
The Shiprock 5K Trail Race will take place at 5:00 p.m. on Friday, May 1 on the Blueberry Hill course, beginning and ending at the Youth Center. There are awards for top individual (overall and age-group top three) and team winners. All runners will receive a performance t-shirt, race poster, swag and post-race snacks. We have […]
Take 5 in the Garden of the Gods
Who can turn down a morning in Garden of the Gods? We'll close the park to traffic, so runners can enjoy their race, traffic free! Choose between a 5k or 5 Mile course through the Garden of the Gods. Runners can choose between a road race or a trail race! Beginning in 2022, we've be […]
Foster Care 5K
Adams County will host its annual 5K race, and 1 mile fun run at the Riverdale Regional Park which is home to the Adams County Fair. Registration opens at 6:45 a.m., and the 5k race starts at 7:30 a.m. The Fun Run will start 30 minutes later at 8:00 a.m. Proceeds from the Foster Care […]
Collegiate Peaks Trial Run
The Collegiate Peaks Trail Run takes place in Buena Vista, Colorado and offers two race distance options - 25 miles and 50 miles. The race was established in 1991 and provides a significant challenge of not only time but also physical and mental stamina. Beginning and ending near the Arkansas River in Buena Vista, the […]
runBlossom 5K
Event Information: For 20 years, the annual runBlossom race has helped usher in the summer season in Cañon City. As the snow melts and the leaves begin to adorn trees, runners of all ages come together to celebrate the Cañon City Music and Blossom Festival. The runBlossom 5K event showcases the Arkansas Riverwalk Trail, running […]
Niwot’s Challenge
Niwot’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 in New Hampshire. Much of the information for this event is kept secret with an exception for those who are accepted for entry. This is […]
Hope House 5K
Our 13 annual Hope House 5K & Fun Run will take place on Saturday, May 2, 2026 at the Promenade Terrace Park (South of the Westin Westminster)! It will be a fun-filled day full of fast runners, speed walkers, parents pushing strollers, smiley children, exciting finishes, an epic Diaper Dash, live music and more. Join us as […]
Furry Scurry
The Furry Scurry is an annual, pet-friendly, fun-filled festival and two-mile dog walk at Denver’s Washington Park to benefit the animals in our care. This year, people can gather in person on Saturday, May 2 OR walk from afar between now and May 11 (although we hope you’ll choose May 2 for your “virtual” stroll)! No matter where you scurry, […]
Longmont Half and 5K
Longmont's only Half Marathon - now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!
Moose Mudder
Please 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 muddy obstacle course. Get your best time, run for fun, walk with a group, form a stroller brigade, or line the streets to cheer everyone […]
Emerge 5K
The Emerge 5K is our biggest annual fundraiser, and the funds we raise ensure that we can continue to fulfill our organizational mission of breaking the social and financial barriers to mental health care for youth. Each year, Rise Against Suicide funds thousands of therapy sessions for youth under the age of 19 who are […]
Blue Ribbon 5K/10K
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