Event details subject to change. Please confirm all information via event website.
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 Creek open space areas. The 10k passes by scenic Pleasant Hill Cemetery with panoramic views and where friendly spirits can’t wait to visit this year’s […]
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 few years when Halloween lands on a weekend. You don't want to miss it! Every racer gets a T-shirt with GLOW IN THE DARK printing […]
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 with EAPL. The race is set in the mountains West of Denver, the course begins and ends at Buchanan Rec Center Ball Fields. The course […]
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 trick or treat with the ghouls in the graveyard. DON'T FORGET TO DRESS UP! Our Halloween costume contest gives you even more reason to rock […]
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 cold beer with friends, or watching your kids collect candy, there's something for everyone at this one-of-a-kind Halloween celebration.Event Schedule🏃 9:30 AM – 800 Meter […]
Colorado Avalanche 5K
The Colorado Avalanche is bringing back its annual 5K race at Ball Arena! Participants are encouraged to run, walk, or roller skate/blade! There will be photo opportunities with famous movie cars and Halloween decor, trunk or treat with candy stations, and appearances from Bernie and Ice Patrol. Costumes are highly encouraged!
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 Monument in beautiful Fruita, Colorado. The race course gives runners amazing views of the Grand Valley and finishes at the Fruita Community Center.
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 non-profits to take a stand against human trafficking. Choose between the 10K or 5K in the beautiful City Park. 100% of your registration fee goes […]
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 in March, Spring Fever, these 5K, 10K & Half Marathon courses will hug the shores of Arvada's Blunn Reservoir via the Ralston Creek Trail and will […]
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 author of her story. So grab your cheer gear, noisemakers and spirit fingers and join us for this celebratory event! Girls on the Run 5K […]
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 Monument as you run through the high desert. All distances begin on fast, flowing singletrack and work their way back to the steep ups and downs […]
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 views of the surrounding Castle Rock landscape. The park’s extensive trail network winds through valleys, hills, and natural open space, creating a fun and challenging […]
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 Saturday or Sunday (same course, same support, but two separate awards.) If you want to run the Marathon, 10K or Kids K- they will be […]
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. This race will mimic some of those old traditions to honor our nations veteran community. We are honored to be part of this event and […]
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 - let's kick off the month by running for a cause! Consider adding a donation of which 100% goes directly to Pancreatic Cancer Research RIGHT […]
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 medal Chip-timing with live results and awards Free photos Delicious Treats waiting at the finish line Plenty of fun! Grab your friends and family, you […]
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 high fives we put this event on as a celebration. A little backstory on our friends and Sole Mates - Left Hand Brewing ..... When Shoes […]
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 the milestone than with our first-ever Excel Eagle Trot Family Fun Run! For the very first time, we’re inviting the entire Excel community—students, parents, guardians, […]
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 during the run. Returning runners can dust off their bear suit from previous Bear Runs and register at a discounted rate. Register your dog to […]
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 options are available. 10k race repeats 5k lap twice. The race starts and ends at the Alamosa National Guard Readiness Center. The race course runs […]
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 its 23rd anniversary in Denver in 2026. We look forward to a sweet family event! Can an event called The Great Candy Run promote a […]
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 medal Chip-timing with live results and awards Free photos Delicious Treats waiting at the finish line Plenty of fun! Grab your friends and family, you […]
Dragon Dash 5K
This fun community oriented walk for all levels of fitness and all ages in support of the Isabella Bird Community School, a ECE-5th Grade School in Denver, CO.
Veterans Day 5K
The Colorado Springs Veterans Day 5K is more than a run—it’s a moving tribute to those who’ve served our country with honor. This event provides an opportunity for our community to come together alongside our veterans and celebrate the courage, commitment, and sacrifices of our military veterans, past and present. Why We Run: To honor […]
Canya Cañon Trail Race
We are returning to the original 4-mile course that runs the length of the Columbine Trail. This course was last run in 2014. Participants will start at Starsmore and run up Columbine Trail to the Powell parking lot. Adventures Out West will shuttle participants back to Starsmore. Well behaved and leashed pets are allowed! However, […]
Dead Horse Ultra
There's a reason this is one of the biggest trail running events in the country! Moab in November is a trail runner's dream. Perfect weather and world class single track make this event one you don't want to miss. Dead Horse features the Magnificent Seven Trails off of Gemini Bridges. The course will challenge you […]
Lone Tree Reckoning Half Marathon
There’s a new challenge waiting on the trail. The Lone Tree Reckoning Trail Half & 5K is your chance to trade pavement for dirt, take in the scenery, and find out what the trail has in store for you. Don’t let the views fool you—this course has some personality. Expect a mix of runnable stretches, […]
Louisville Trail Race
The Annual Louisville Trail Half Marathon, 10K, and 5K returns to the front range, beloved by runners for its scenic trails and welcoming atmosphere. The course is mostly flat with a beautiful, yet challenging hill that creates an epic vista point of the front range mountains as you hit the last mile of the course. […]
Veterans Day Run 5K/10K
The 18th annual Denver Veterans Day Run and 13th annual Denver Veterans Day Parade & Festival, in partnership with the City of Denver, will take place on Saturday, Nov. 14 at City Park in Denver. Recognized as “Denver’s Run for Veterans Day” by Mayor Mike Johnson, the run will welcome runners, joggers and walkers of […]
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