Event details subject to change. Please confirm all information via event website.
Canyonlands Ultra
Canyonlands 100K, 50 Mile, 50K, Marathon, Half Marathon, and 15K Canyonlands Ultra starts and finishes at the Behind the Rocks Trail, along the border of the Behind the Rocks Wilderness Study […]
Cowboy Half Marathon
With a new race date for 2021, the Mancos Cowboy Half Marathon and 5k is a beautiful and scenic course with a mix of pavement, dirt road, and trail. Grab […]
Zedikiah Scholarship 5K
Join us for a powerful morning of MOVEMENT, COMMUNITY, AND PURPOSE as we come together to CHANGE LIVES THROUGH EDUCATION. The ZEDIKIAH MEMORIAL SCHOLARSHIP FUND supports BIPOC students pursuing higher […]
Race to Cure Sarcoma 5K
The Race to Cure Sarcoma (RTCS) is the premier run/walk series in the United States, focused on raising awareness, providing education, and research funds for sarcoma. Each year, the Sarcoma Foundation of […]
Trick or Trot 5K
Join the Apex Park and Recreation District Foundation for the inaugural Trick or Trot 5K! Runners and walkers of all ages and abilities are all welcome to join us for […]
YMCA Creepy Crawl 5K
Our annual "spooky themed" race starts at the Palmer Lake Regional Recreation Area. We head down the scenic Santa Fe Trail for a bit then turnaround and finish with a […]
Quick Draw @ McGraw Trail Race
Come one, come all! And join us in the "Quick Draw @ McGraw" 2 Mile Trail Run, organized and hosted by CRATES Colorado and benefitting McGraw Memorial Park. This challenging […]
MonsterDASH
Colorado's Favorite Halloween Runs....Each year the Theme Changes!! This festival on Sloan's Lake, brings scary music, tons of Blow Ups, Carnival Games and Scary Clowns. The 5k and 10k run […]
Spooky Sprint 5K
This eerie evening race winds through a chilling course at the YMCA of Pueblo. The thrilling Halloween themed race is perfect for all ages and fitness levels. Recommended for those […]
The Stride 5K/10K
You’re invited to The Stride, a family-friendly 5K, 10K, Kids Fun Run, and Wellness Expo in Littleton on October 24th. Benefitting the Littleton Public Schools Foundation, this event brings together the community for a great cause.
Beware the Bear Trail Races
Run the original Bear Creek Lake Park trail race - the Beware the Bear Trail Races - on October 17th. This trail race consists of a 14.2K or a 5K. Or do them both with the double! There is also a kids 1K.
Odyssey Odyssey 5K
The Odyssey Odyssey Fun Run is entering its 9th year. It has always been centered around having fun and exercising our bodies. It is an all-inclusive event, which is why […]
MonsterDASH
Colorado's Longest running Halloween race....since 2006, we have changed the THEME to this race year after year! We wil have scary music and a CIRCUS Themes Expo at the start/finish. […]
Narrowleaf Lake Run
Brisk autumn running in Colorado – OH YEA! Join us for a family fun event with three distance options at the beautiful Boyd Lake State Park venue. What’s a “Narrowleaf” […]
Spooky Sprint Half Marathon
Join us for the annual Spooky Sprint 5k/10k & Half Marathon! A fun, Halloween-themed event that is perfect for the whole family.
Colorado 24 Hour Run
Welcome to the Colorado 24 Hour Run! We aim to provide a fun, welcoming race experience that allows everyone to find a challenge, no matter where you’re at on your […]
Bear Creek Backyard Ultra
See if you can get to the 11th hour: one 4.167-mile loop, every hour, for as long as you can, up to 11 laps before the park closes for the […]
Halloween 5K Fundraiser!
Please join us this Halloween (a.k.a. Reformation Day!) for a 5K Fun Run in support of Austin and Cayla Albrecht's summer 2027 mission trip to Southeast Asia! Come out in […]
Eerie Erie 5K/10K
The world-famous Eerie Erie is a Halloween-themed 5k and 10k race that runs through historic downtown Erie and takes advantage of our beautiful trail system that weaves along the Coal […]
I Ain’t Scared (of 5K)
Dress up and run spooky and silly at the I Ain't Scared (of 5k) in Thornton! Fun music, Halloween snacks and costumes galore!! This event only comes around once every […]
Halloween Peach 5K
The ladies of Cedar Mesa Club are hosting their 2nd annual peach-filled event to raise money for local scholarships. Come join your neighbors for a scenic 5K (3.1 mile) loop […]
EAPL Zombie Run 5K
Run, walk, crawl family event supporting the Evergreen Animal Protective League (EAPL). Bring your family (doggies are welcome)! We strongly encourage your spookiest, ghoulish, Halloween gear! Come out and HOWL […]
Halloween Fun Run
This Halloween, join us for a spooky 5k or 1 mile loop through the Pioneer Cemetery in Idaho Springs!! Try for a PR or take a leisurely stroll as you […]
Monster Mash 5K
Celebrate Halloween with a day full of fitness, family fun, great food, and festive entertainment at the Monster Mash Run & Brew Festival! Whether you're racing in costume, enjoying a […]
Rim Rock Marathon
Join the Grand Junction Sports Commission for a monumental run on Sunday, November 5th, 2023! Rim Rock is the only marathon and half marathon that runs through the Colorado National […]
All-Out Kooky-Spooky
From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents Kooky-Spooky from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sidekick […]
Kessel Run Ultra
Located in Fruita, Colorado, just a quick drive from the Front Range, this is the ultimate Racecation Adventure!! Enjoy sweeping views of the San Juan Mountains and the Colorado National […]
Canceled Marathon At The MAC
This scenic race will feature three distances: a Marathon, Half Marathon, and 5K, offering something for runners of all abilities. Participants will experience beautiful single-track trails, rolling terrain, and sweeping […]
Moab Trail Marathon
We are happy to announce that we will again be running Sundays 1/2 Marathon in addition to the traditional Saturday Races. So, you may run the 1/2 marathon on either […]
Bell Ringer 2 Miler
Our community is one of the few remaining cities in the nation to follow the old tradition of ringing bells throughout town in the early morning hours of Veteran’s Day. […]
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