Event details subject to change. Please confirm all information via event website.
Far Out 3/4 Marathon
We host one race per month from November to March. All races are at Chatfield State Park and start at 9:00 am on Saturday mornings. Check-in starts at 8:15 am.
Winter’s End Snowshoe Races
The Winter’s End Snowshoe Races is an exciting winter running adventure that takes place at the beautiful Granby Ranch Resort in Granby, CO. The races are open to runners of all abilities, from beginners to experienced athletes, and offer a unique opportunity to enjoy the beautiful snow-covered landscape while staying active and healthy during the […]
5K Raptor Run
Please come run/walk, being your dog too if you want at Barr Lake State Park Have fun! Bring a friend. Sign up on Running Guru or go to Friends of Barr Lake website.
Mav Day 5K
Lace up your sneakers and get ready for an epic, one-of-a-kind 5k experience! Join us for our 2nd annual 5k that supports student scholarships. Every penny raised will be donated to High 5 a Mav, our annual community giving campaign that raises money to provide scholarships to current students. You won’t want to miss this exciting […]
Diabetes Link 5K
Join us for the CU Boulder Diabetes Link Fundraising 5k Race this April 13th to support diabetes research and raise awareness!
Most Eggcellent 5K/10K
This is the Most Eggcellent of excellent 5Ks - an 80s themed 5k! Bring out your pastel, your shoulder pads, your blue eyeshadow, and that big hair! We cannot wait to see your spirit! We will start at McPhelemy Park, and then runners will travel west on Crossman Avenue (CR 350). They will take a […]
The Mile High 4.20K
A Mile Higher, A Mile Healthier Raise awareness and promote a healthy lifestyle with cannabis for medicinal purposes; physically, mentally, and psychologically. Finding different ways to give back to the community without a bad connotation of natural herbs and the benefits they can bring.
CSU Grit Run 5K
ome join us on April 20th at 9:30am for a 5K run/walk hosted by the Colorado State Football Program! Colorado State Football would like to invite you to participate in an event that will benefit those with Cystic Fibrosis. Cystic Fibrosis is a progressive, genetic disease that causes persistent lung infections and limits the ability […]
Springtime Sprint 5K
Come have an awesome time and race in the 5k or Fun Run we will be hosting on April 26 2025 at the Compass Montessori Golden Campus! There will be T-shirts, snacks, and awards for top 3 finishers per age category. This is a student-led valorization project and all proceeds will go to our school, […]
Boulder Track Series #2
Niwot High School 8989 Niwot Road, Niwot, CO, United StatesWe are pleased to offer 3 x Spring track meets, for middle distance and distance runners, that will be conducted similarly to the BMC (British Milers Club) meets. All meets will be held at Niwot High School (8989 Niwot Rd, Niwot, CO 80503). ADDITIONAL NOTES There are NO age restrictions for the 800m, 1500m and […]
Falcon 50
This year's in-person Falcon 50 will be opened up to all DoD ID Cardholders but is subject to change should a base closure occur. Welcome to the annual Falcon 50 Race Series. This event has 5 race distances/options: the Half-Marathon, Military Half-Heavy, Marathon, Military Heavy, and 50 Miler. Join us and help continue the legacy […]
Canceled Bash the Bluffs 5K
Every spring the University of Colorado at Colorado Springs Campus Recreation Department hosts an on-campus run/walk in honor of Dr. Ed Burke, former professor of Exercise Science and renowned researcher at UCCS. This year, the 21st annual Bash the Bluffs 5K run/walk will be held on April 23, 2022
Bulldog Bustle 5K
Celebrate Israel Walk
The walk is back! Show your solidarity at JEWISHcolorado’s Celebrate Israel Walk & Festival. This year, our theme is “Hineni – We All Belong”. Celebrate Israel is Colorado’s largest festival dedicated to the people, culture, and state of Israel, bringing together Jewish people and allies from across the Centennial State for music, food, and connection. […]
Western Colorado Trail Running Camp
Join us for a long weekend full of trail running adventures in the colorful desert landscape of Western Colorado's wine country. Life's 2 Short Fitness is teaming up with Becoming Ultra coaches for this special co-ed trail running camp for all levels. Enjoy coached workouts/clinics, guided hikes and runs for all levels, recovery yoga, cold […]
Ordinary Mortals Triathlon
Ordinary Mortals Triathlon is changing to a Duathlon at the beautiful Lake Pueblo State Park. There is a big lake but it will be too cold for a swim in early May, at least for regular folks. So we will run, bike, run - the course and distances are perfect for newbies and offer a […]
Trauma Survivors Fun Run
Mamas Day 5K
Mamas Day 5k and Family Fun Run is located in Buena Vista, CO. The course is on paved and dirt town trails and is stroller friendly! Open to anyone wanting to celebrate Moms! Participants receive a goodie bag and trucker hat.
Mother’s Day Run
A new Race Series for Colorado with 2 races over the Weekend for both WOMEN/Moms and their families!....Saturday, MAY 10th, 5k & Family 1 mile in Denver at GREAT LAWN PARK, then on Sunday in LOUISVILLE- COMMUNITY PARK for the 5k, 10k and Family Mile Trail Races. Take your choice. DENVER- Expo opens at 8:30am, […]
Spawning 5K
Postponed Memorial Day Run and March
Colorado Veterans Project is set to host the eighth annual Memorial Day Run & March, which will raise funds and collect non-perishable food donations for local veterans experiencing homelessness. Athletes may participate in a 5K, 10K or 30K run, or choose to ruck march, where each athlete will carry a 25-pound rucksack filled with non-perishable […]
Air Academy Football 5K
The 5k will start at red leg brewery and will be a single loop. This will not have time chips but we will have a timer at the start. The race is benefiting the Air Academy Football team for a planned game in Durango, CO.
Cupcake 5K
Join DuMyon Martial Arts and The Farm Sports for our fun and family-friendly Cupcake 5k Run, Walk, and Roll. This fund raising event supports adaptive learning opportunities for members of our community. Be sure to visit our vendor tables and engage with the community Event t-shirt included with your registration This is a can't-miss event! […]
Stride for Wellness 5K
Join family and friends for a walk or run in Bear Creek Park! Proceeds from this event support StableStrides Mental Health Programs. Participants may choose a 5K or a 3K route to walk or run. We start and finish near the StableStrides’ lower barn at the Norris Penrose Center, with the route going across the […]
Mountain Madness Spring Survival Orienteering Race
Mountain Madness: The Ultimate Team Orienteering Challenge! Teamwork, strategy, and adventure await in Mountain Madness—Colorado’s most exhilarating team orienteering trail race! In this two-hour, all-terrain challenge, teams must rely on map and compass skills—no GPS allowed!—to navigate the rugged wilderness and collect as many checkpoints as possible before time runs out. There’s no set course—only […]
Latino Ultra Nature Adventure
The Annual Latino Ultra Nature Adventure (LUNA) is a culturally relevant and equity driven new kind of Ultra powering the physical and mental health that comes from the mix of athletics, awe inspiring nature, and forest bathing. LUNA promotes human-nature connections and self realization through running and hiking for communities historically excluded from exclusive outdoor sports. […]
15 Homes in 5K
Join Habitat for Humanity of Archuleta County as we celebrate the kickoff of Year 4 of our campaign to build 15 homes in 5 years! We're showcasing some of the homes we've built over the last 2 years, as the course winds its way through the neighborhood where we have built and will continue to […]
Vail Ultra
Vail Village 292 E Meadow Dr, Vail, CO, United StatesPush your limits with the Vail Ultra! This 50-mile adventure takes you through the heart of the Rockies, where every step leads you through steep ascents, awe-inspiring views, and ever-shifting terrain. Whether you’re an experienced runner or just love the challenge of the outdoors, this race is about more than just crossing the finish line. […]
Louise Hammond Memorial Beardance Run
First 20 to register (in each category) will get a t-shirt. Overall Prizes for M/F - 1st, 2nd and 3rd place 10k and Half Marathon: out-and-back, the first mile is a gradual incline on pavement, then onto an unmaintained dirt road. There will be water stations along the way. 5k: Starts on pavement for the […]
Footsteps for Families
Get Ready to Run, Walk or Scoot, and Support: Family Fun Event Returns for its 3rd Year! Grab your gear and gather your loved ones – it's time for the 3rd Annual Walk/Run to support Safe Families for Children! This event is now titled Footsteps for Families. This year promises to be bigger and better, offering […]
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