Event details subject to change. Please confirm all information via event website.
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 […]
Colleen De Reuck XC Classic
The Colleen De Reuck Cross Country Classic is a XC meet honoring one of the world's greatest ever distance athletes and Boulder local, Colleen De Reuck. Every year we will celebrate […]
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 […]
Feet for Justice 5K/10K
Join us for the Feet for Justice Run IN-PERSON this November! The Feet for Justice Run is a family-friendly event in Denver that brings together the community members, businesses, and […]
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 […]
Girls on the Run 5K
Each season comes to an end with a joyful and fun non-competitive 5K (3.1 miles). This culmination gives girls a tangible sense of accomplishment and the confidence to be the […]
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. […]
City Park 5K
Get ready for the winter season while enjoying a race with your friends at the City Park 5k! 5k finishers earn a MEDAL! November is Worldwide Pancreatic Cancer Awareness month […]
Turkey Trails 5K/10K
Join us for the annual Turkey Trails 5k/10k! A fun, Thanksgiving-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom […]
Sole Mates 5K
Shoes & Brews along with our "Sole Mates" Left Hand Brewing and Hoka present the 9th edition of our fall race series. With a focus on community, running, beer and […]
Excel Eagle Trot 5K
Get ready for our first fundraising event of the school year! This year is extra special as we celebrate Excel Academy’s 30th Anniversary - and what better way to mark […]
Bear Creek Bear Run
Join Bear Creek Nature Center for our 12th Annual Bear Run–a family-friendly 5k and 3k fun run & walk! All new runners get a bear suit to keep and wear […]
Alamosa Veterans Memorial Park 5K/10K
A salute to Vets on Veteran's Day Weekend to raise funds for Alamosa's Veterans Memorial Park. Join us for the 1st Annual Veterans Memorial Park Race. 5k and 10k race […]
Break a Leg 5K
Run or walk in our 5K fundraiser for the Central High Theatre & Choir Booster Club! Wear your favorite costume and join the fun while supporting the arts.
The Great Candy Run 5K
CANDY! Choosing candy at a candy store delights everyone! We bring that sweet treat excitement to an unbeatable family event. The race, originally known as the Race for Hope, celebrates […]
Turkey Trails 5K/10K
Join us for the annual Turkey Trails 5k/10k! A fun, Thanksgiving-themed event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom […]
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