Event details subject to change. Please confirm all information via event website.
Suffer Better 50K/25K Trail Run
We are stoked to once again invite you all to come run with us at Staunton State Park, off of Highway 285 near Conifer, CO, on October 15, 2022. We are even more stoked to be able to add to our existing 25 and 50K event offerings, this year adding a special 25K Fishslappers edition […]
ASDAsh 5K to Beat Tooth Decay
Join us for the University of Colorado School of Dental Medicine's Annual ASDAsh 5K to Beat Tooth Decay! This year, we will be starting and ending at Boettchers Commons! Additionally, we're including the Meatball Mile, featured on the course. This section will be a designated Strava Segment, and there will be a prize for the […]
Breckenridge Road Marathon
Join us for an unforgettable two-day running experience in the heart of Breckenridge! Our RunFest Weekend kicks off Saturday with a 5K, 10K, along Main Street, followed by the Half Marathon and Full Marathon on Sunday, starting at 10,434 ft on Boreas Pass Road. Make a weekend of it, race, recover, and explore everything Breckenridge […]
CMRA Stone House Triple-Cross
The race will begin just west of Estes St across from the Stone House Park on Bear Creek in Lakewood. It will head west mostly on dirt trails through the creek side trees with a short piece on the Bear Creek bike path. Near the Fox Hollow golf course the route crosses Bear Creek 3 […]
Colorado Believe 5K
Know that you're part of something bigger. By raising awareness, we can help other families who may still be searching for answers. Any funds raised will go to Dup15q Alliance who provides family support and promotes awareness, research, and targeted treatments for Dup15q syndrome.
Lions Roar for Fitness 5K/2.5K
So What Is the Lions Roar for Fitness 5k/2.5K Challenge? 5K Challenge — Starts promptly at 9:00 a.m. at Lake Minnequa (near CIMS), but please arrive by 8:15 a.m. There will be a shot gun start. Medals will be awarded to all age group winners after the race. 2.5K Challenge – Starts promptly at 9:10 a.m. at […]
Manitou 5K
Come celebrate the beauty of Manitou Springs! Race starts and ends in Fields park. Run along the rolling creek, view the art along the Creekwalk, loop the beautiful parks full of murals, sculptures, disc golf, skateparks and more. The path is flat and accessible to all. Run/walk. Bring your family, bring your neighbor, bring your […]
Kipling Villas 5K
This race will be throughout the trails in the Kipling Villas neighborhood near Lilley Gulch Recreation Center.
Faith & Blue 5K
Join us for the 2026 Faith & Blue 5K as we bring together law enforcement, local faith communities, families, and neighbors for a morning of fellowship, unity, and community connection. Faith & Blue is about building bridges between law enforcement and the community through shared experiences and meaningful relationships. The 5K is more than a […]
Footsteps for Families 5K
Join us for a heartwarming and inspiring race event that celebrates the power of community and compassion! Safe Families for Children is a remarkable Global Movement dedicated to keeping children safe and families together. Picture this: a vibrant atmosphere filled with families, friends, and runners of all ages, united by a common goal – to […]
Rocky’s Backyard Ultra
Rocky's Backyard Ultra is a challenging Ultra Trail race hosted in beautiful Estes Park, Colorado. We strive to host a challenging event that is welcoming and motivating to all. "One More Lap" The Backyard Ultra is a form of Ultra Trail race where runners must complete 4.167 miles in less than one hour, every hour, until only one […]
Westy Half and 5K
Join the WESTY HALF and 5k this fall! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. This is one of the few 5k events where FINISHER MEDALS are awarded to each participant.
Breakthrough T1D Walk
As the leading global type 1 diabetes (T1D) research and advocacy organization, Breakthrough T1D has played a crucial role in nearly every major T1D breakthrough in history. No organization does more to improve everyday life with T1D—from therapy development and access, to expanding research, advocacy, and community support. Breakthrough T1D Walk is the world’s largest […]
Moony Pride 5K
This fun run is held on national coming out day this out and back Greenway 5K is here to celebrate everyone and anyone! There will be an unofficial clock and a mini award ceremony after. this is a free race, but we asked that you would consider to donate. All donations go to charity.
Run the Rocks
Celebrating our 21st year, the American Lung Association in Colorado proudly offers the only timed-race event at the iconic, gorgeous Red Rocks Park & Amphitheatre. This unique run/walk challenge combines breathtaking scenery and a rock ‘n roll vibe for our 1.3-mile run/walk and 5K. Dogs are welcome at both events. We will host over 1,500 […]
EDT XC Showdown
Whether you run for a team, as an individual, or you just want to try out the experience of running a cross country race, you are welcome to join us for the 2024 Elevated XC Showdown! Boys/Girls will run in combined races, and will be separated by age groups below. All courses utilize the same […]
Kitty Beanz Cat 5K
Indian Creek Fifties
The Indian Creek Fifties takes advantage of the challenging and little used terrain just southwest of the Denver Metro area. Loop 1 climbs to 8000′, and quickly flows down into the Grand Valley for a few gorgeous pink sunrise soaked miles. This loop almost seems friendly, until you’re given a few sharp stabs in the […]
Bobcat Trail Races
Bobcat Trail Race was created to feature one of Colorado Spring’s best city parks, Palmer Park. Runners will enjoy views of the city and Pikes Peak from the rocky bluffs. Come out and enjoy this amazing trail system, right in the heart of the city! Formerly a Mad Moose Event & graciously passed on to […]
Blue Sky Trail Marathon
Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the Blue Sky courses take you on a north-south tour of the easternmost hogbacks of Northern Colorado’s Front Range mountains. With a moderate amount of elevation gain and loss and a variety of terrain, the route offers a little bit […]
Living Water 5K
5K Fun Run race and family friendly 1mile run/walk to help support communities who are in dire need of clean, sustainable water solutions and those suffering from recent disasters. The event will be held at the lovely Berkeley Lake park (across from Lakeside Amusement park), and will be a timed, point to point race following […]
Sean May Memorial Run
The run/walk is held to honor Sean May, a Chief Deputy District Attorney with the 17th Judicial District Attorney’s Office who was murdered in his backyard in 2008 when he was returning home from work. During his seven years of service in Adams County, May served in a variety of assignments, including a rotation in […]
Great Pumpkin Haul
The Great Pumpkin Haul involves strength, agility and hauling a pumpkin on a 2 mile cross country course. Before the "Haul" you will pick out a pumpkin from the pumpkin patch and carry it through forests, open fields, over hay bales and other fun obstacles. Post run festivities include hay rides, haunted maze, food trucks and […]
Running Scared 5K
Get ready for a spine-tingling race experience at the Running Scared 5K & 13K—where thrills, chills, and fast times collide! Whether you’re brave enough to tackle the 5K or daring enough to conquer the 13K, this Halloween-themed event delivers a fun and festive atmosphere perfect for runners of all levels. Costumes are encouraged, so come […]
Longmonster Dash 5K
Runners, walkers, and broom fliers of all paces are welcome to join the fun. Race for pumpkin trophies and age-group awards, or come dressed to impress for a chance to take home one of our witch trophies in categories like Best Overall, Best Family, Best Group, Spookiest Costume, and more. After you cross the finish […]
Great Trailhead Foot Race
Welcome to the Great Trailhead Foot Race at Bear Creek Lake Park! Featuring legitimate TRAILS in the shadow of Denver's skyline, you'll love the single-track and dirt as you race 5 miles, or a double lap of 10 miles to the finish line party!
Chili Chase
An exhilarating day of trail running and delicious chili! Durango's only trail running event that starts with a trail run through Overend Mountain Park over Hogsback, and ends with a Chili Cookoff! Presented by The Durango Running Club & Backcountry Experience, and benefitting The Good Food Collective. Registration for runners opens Aug 1, 2026 for […]
A2A Hero Run
The race is approximately 5K, looping around Minnequa Lake, starting at 2201 Lake Ave, Pueblo, CO 81004 (Fire Station 4).
Running Scared 5K
Get ready for a spine-tingling race experience at the Running Scared 5K & 13K—where thrills, chills, and fast times collide! Whether you’re brave enough to tackle the 5K or daring enough to conquer the 13K, this Halloween-themed event delivers a fun and festive atmosphere perfect for runners of all levels. Costumes are encouraged, so come […]
Fall Harvest Kids Duathlon
Join us for a fun-filled Fall Kids Duathlon at Broadmoor Elementary! 🍂 Kids ages 4–12 will take on a run → bike → run course, followed by a morning of fall fun including face painting, hot chocolate, icrecream and pumpkin picking and painting! 🎃🏃♀️🚴♂️ All participants will have a choice of either a hot chocolate […]
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