Event details subject to change. Please confirm all information via event website.
Rocky Mountain 5K
In partnership with the YMCA Pikes Peak Region, we want to bring you the annual Rocky Mountain Run, the Rocky Mountain State Games official 5k! Athletes will be looped around Memorial Park starting at the IAFF Fallen Firefighters Memorial then head through the side streets of Memorial Park, around Prospect Lake, and finish back at […]
Nebraska State Fair Marathon
The Nebraska State Fair Marathon will include several different races for the entire family. The races include a Marathon, Half-Marathon, Relay Marathon, 5K, 1-Mile Kid Run, Push Rim Wheelchair, and Handcycle. All races will start and finish on the Nebraska State Fairgrounds.
Historic Main Street 5K
Join us for this family-friendly event! The 5K run/walk will begin and end on Elizabeth’s historic Main Street, featuring a new and exciting course that crosses the reconstructed trail bridge and heads north into Evans Park, with a mix of pavement and dirt for varied terrain. The Family Color Run will take place in Running […]
Run Like The Wind 5K
Come race in the mountain town of Allenspark Colorado. Run the scenic 5K that circles through downtown and along dirt roads amid pine forest, boasting awe inspiring views of Mount Meeker and the Continental Divide. Enter your dog to run with you for an extra $5 and stick around for the post-race whimsical dog show. […]
Summit UP Run
We're bringing back our Summit UP Run presented by Mammut during Union Peak Festival weekend with spectacular views to jump-start your Saturday morning before relaxing and listening to music! Choose from a 5k or 5k Challenge route—both start & end at Aerie, located at the top of American Eagle lift. Celebrate your athletic pursuit at the Aerie […]
Run for Hope 5K
This year will mark our 3rd annual Run For Hope when we remember, honor, and celebrate those who lost their lives to addiction. This year's event is hosted by our Finding Hope and Hope After Loss Support Groups. We currently have over 800 members across the United States who attend these free support groups to […]
Ouray 50 Mile
A 50 That's More Difficult Than Your Last 100 How do you build a 50 miler that hits harder than most 100 milers? Easy. Start with a stout mountain hundred miler. Anything with ~24k feet of climbing should do. Find 50 miles of flat and discard it. Add copious amounts of highly-technical, unforgiving, why-would-they-even-think-this-is-a-good-idea trails. […]
Glow and Roll 5K
Glow & Roll is an inclusive, dusk-time 5K Walk/Run/Roll (with a 1.6-mile option). A glow-filled, twilight experience with lights, music and day-glow swag that transforms the event into a celebration under the evening sky. Movement in all forms is welcome whether you walk, run, use a wheelchair, or dance your way through the course. Creative […]
RMRR Fall Marathon Training Series #1
Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United StatesRMRR’s Marathon Training Series provides 10M and 20M races that are low cost, friendly, fully supported, and officially timed. All you need to do is focus on your running! Our races fit perfectly in training schedules for Colfax, Boston, New York, Chicago, and other full and half marathons. Everyone is welcome at our MTS races: RMRR members, […]
Bluffs 8K Trail Run
Prairie Sky Park 10249 Ridgegate Circle, Lone Tree, CO, United StatesThe Bluffs 8K Trail Race has rolling hills and beautiful views as you run or walk through the Bluffs Regional Park. The race will start/finish near the Prairie Sky parking lot o n August 28th.
Louisville Fall Splash & Dash
Get ready for a fun, energetic racing experience! The event features an indoor swim in the Louisville Rec Center pool, followed by a run on the outdoor trail. This series is open to kids ages 5–14. Age Groups & Distances 5–8 yrs: 50-yard swim / 0.65-mile run 9–11 yrs: 100-yard swim / 1.3-mile run 12–14 […]
Wine Run 5K
Join us on Sunday, August 30, 2026 for an exciting annual event that features the amazing scenery and landscape of The Winery At Holy Cross Abbey! Due to the huge turnout, we will have 2 start times for the event (9:30am and 11am). You'll select a start time when you sign up. Since July 2002, […]
Lakewood Trail Running Series I
Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United StatesThe popular trail running series in Bear Creek Lake Park takes place weekly in September. Different routes allow participants to explore all areas of the park. Racers can compete against others in-person on Wednesday evenings, or run the marked course on their own Tuesday-Thursday weekly for a virtual option.
Roost Rebellion Relays
Welcome to the Roost Rebellion Relays! Assemble your fastest 4 x 1 mile relay team to race in Washington Park. Each team needs to be co-ed with at least 2 women. Here's the catch! Each team must select at least one participant to race in Mizuno's super shoe - the Wave Rebellion Pro. This ultra […]
Mighty Marmot Kids Trail Race #1
Come join the Vail Recreation District for the 3rd Annual Mighty Marmot Kids Trail Race Series! Youths ages 4 to 10 are welcome to participate. Chose between 1 or 2 miles* to compete amongst your friends and celebrate with awards and ice cream after you finish! *4-year-olds can only race in the 1 mile category This series includes […]
Grand Traverse Mountain Run
The Grand Traverse Mountain Run is a point-to-point ultra marathon from Crested Butte to Aspen, Colorado. The course follows the route of the Grand Traverse Backcountry Ski race. In total, runners travel 40 miles across the Elk Mountains with over 6,000′ of elevation gain.
The Beaver Run
The Beaver Run is a high-altitude mountain running event held Labor Day Weekend in beautiful Breckenridge, Colorado. Participants can choose from 5K and 10K distances along Breckenridge's scenic paved recreation path system while enjoying mountain views, fresh alpine air, and a festive holiday weekend atmosphere at approximately 9,600 feet above sea level. Hosted by BA […]
Recovery Run of the Rockies 5K
Join us for the 4th Annual Recovery Run of the Rockies 5K on Saturday, September 5, 2026, at Fossil Creek Park in Fort Collins, Colorado! This professionally timed 5K brings runners, walkers, families, and community members together for an energizing morning celebrating recovery, health, and hope. Whether you are racing for a personal best, enjoying […]
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 […]
Golden Harvest Half Marathon
5k/10k/Half Marathon registration includes a custom bib, designer shirt, and a custom finisher medal! 1 Mile registration is untimed and includes a custom bib, designer shirt, and a custom finisher medal! The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a […]
Raising the Barr Ultra
Introducing the Raising the Barr Ultra Race. Try to finish as many 10 mile loops around the lake in the first 4 or 10 hours and then switch to 1 mile loops for the last few hours of your race. Registration includes bib, t-shirt, and post-race meal.
Break Your Neck 5K
Come join us to celebrate the access/disability community and raise money for spinal cord injury rehabilitation and awareness. My name is Kenny White III. On November 15 of last year, I suffered a Burst fracture to my C6 vertebrae. After emergency surgery I woke up a quadriplegic. After months of rehabilitation and hard work, by […]
Creede Mountain Run
The Race Is On! The Creede Mountain Run, established in 1987, celebrates the end of summer and the beginning of fall in our small historic mountain town. This event offers participants the opportunity to enjoy the breathtaking San Juan Mountains in Colorado on a 2, 12, 22 mile, or 50K course! The race begins within […]
Cirque Series 14K
The race begins at 10,780' ft, starting at the base of Arapahoe Basin, Mountain Goat Plaza, head up to the High Noon parking lot, then to last chance. You will cross highway 6, get on the A-Basin summer road. You will follow the summer road up to Black Mountain Lodge. From Black Mountain Lodge you […]
Demon Dash 5K
Lace up your shoes and join us for the Demon Dash at its new course at the NAAC! We're excited to bring this course its new home and onto dirt! Whether you are a runner or walker, this will be a fun community event for all. This year's race will follow the high school races […]
Wheat Ridge Half
Prost Brewing Company - Wheat Ridge 3801 Clear Creek Dr, Wheat Ridge, CO, United StatesJoin us for The Wheat Ridge Half Marathon and 5k on Sunday, July 5, 2026. The course starts and ends at Prost Brewing's newest location - in Wheat Ridge at Clear Creek Crossing (opening May 2026). The out-and-back course features a run that follows the Clear Creek Trail. Start Times: The Half Marathon will have […]
Denver Broncos Fit 7K
All members of Broncos Country, walkers and runners alike, are invited to join the Denver Broncos for the 13th annual Broncos 7K presented by CommonSpirit, Ticketmaster, King Soopers, and Cigna on Sunday, September 6th. Participants will start at Empower Field at Mile High and head west into the beautiful Sloan's Lake neighborhood. Then, they will […]
Golden Harvest Half Marathon
5k/10k/Half Marathon registration includes a custom bib, designer shirt, and a custom finisher medal! 1 Mile registration is untimed and includes a custom bib, designer shirt, and a custom finisher medal! The kid's dash is a fun, untimed dash for our kiddos ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a […]
CASA Superhero 5K
We invite you to join us for the sixth annual CASA Superhero Run at Two Rivers Park in Glenwood Springs. We recognize that all children need heroes, but abused children need superheroes! Be a hero for children in need by participating in our annual CASA Superhero Run. Your involvement helps us provide crucial advocacy and […]
10K (and 5K) @ 10,000 Feet
Rabbit Ears Pass Steamboat Springs, CO, United StatesThis is a challenging trail run with beautiful terrain and breathtaking scenery. The 10K race begins at 10,000 ft at the summit of Rabbit Ears Pass. The course begins by heading uphill on USFS dirt roads and 2 track, and then then heads downhill on single-track, ending on a cross country single-track. The total elevation […]
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