Event details subject to change. Please confirm all information via event website.
Canceled bRUNch Run 5K/10K
The bRUNch Run ™ is back! Join us in Denver for the most epic and delicious 5K + 10K run/walk. (There is also the 15K)! Think road race meets food festival... join us for a morning of cheering runners on, finish line high fives and hugs, tears of joy, the only race with a scented […]
Boulder Skyline Traverse
The Boulder Skyline Traverse is a ~18 mile trail route that covers the 5 peaks of Boulder (South Boulder Peak, Bear Peak, Green Mountain, Flagstaff Mountain, and Mt. Sanitas). You'll gain roughly 5,600 ft of vert! The route is intermediate to advanced! All levels are welcome, but our shuttle service will be cut off at […]
Run Fur Fun Spooktacular 5K
Our Run Fur Fun 5k starts and ends at Odell Brewing Company in Fort Collins. Don't forget to wear a costume for the costume contest, enjoy the eclectic tunes of The Sugar Britches, and have lots of fun with fellow animal-and beer-loving racers. Members of NOCO Clown Club will be there making balloon animals for the youngsters […]
Canceled Run With The Panthers 8K
Come join us at 8,410' for a fun and fast 8,410meter road race! This is a fun and welcoming local race benefiting the Nederland Middle/Senior High School PTA. This is an out and back course from the high school to the historic townsite of Eldora and back, all along the Middle Boulder Creek. Watch out […]
IACP 5K Fun Run
Lace up and join us for the IACP 5K Fun Run at the 2025 International Association of Chiefs of Police Conference in Denver! This lighthearted, non-competitive run is your chance to kick off the day with fresh air, great views, and even better company. Whether you’re a seasoned runner or just in it for the […]
Spooky Sprint 5K
Get ready to lace up your sneakers (or your costume!) for Almost Home’s first-ever Spooky Sprint 5K! Join us on Saturday, October 25, 2025 at Margaret Carpenter Park in Thornton for a morning full of fun, community spirit, and impact. Whether you’re running, walking, or choosing to “sleep in”, every registration helps Almost Home provide […]
Canceled Redrum Fun Run
Get ready to lace up your running shoes and unleash your spooky spirit at the Redrum Costume Fun Run 2025! Join hundreds of ghosts, goblins, superheroes, and wacky characters as we dash through the heart of downtown Greeley in a festive 3K that’s more about fun than speed. This family-friendly event welcomes all ages and […]
Team Hope 5K
The Rocky Mountain Chapter of the Huntington’s Disease Society of America (HDSA) will host the annual Heroes and Villains Team Hope Walk and 5K Run at Stapleton Central Park. Wear your favorite costume! All proceeds support HDSA’s mission to improve the lives of people affected by Huntington’s disease (HD) and their families.
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 who want to have a hauntingly good PR. The best part of Spooky Sprint is you get to wear your costume! Whether you’re running as […]
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.
Veterans Services Freedom 5K
This year UNC Veterans Services is hosting the UNC Freedom 5k. The run is a 3.1-mile route of obstacle-free running that is open to walkers, runners, ruckers, children, strollers, and 4-legged furry friends! Bring a heavy ruck if you want to show off your strength. The event will begin promptly at 8:00 AM. There will […]
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 Colleen’s career, her devotion to the sport of running, and promotion of health and fitness, while also acknowledging a different Boulder Olympian every year.
Trails 5K
Our mission is to bring awareness and support the struggles of mental health of youth, teens, adults and families in our community. Many battles are related to mental health including bullying, depression, anxiety, addiction, identity, inclusion, trauma, abuse. Trails and Arapahoe Park & Recreation District are partnering with Aurora Youth Options, Aurora Mental Health & […]
COMEA Turkey Trot 5K
Get ready for a festive and family-friendly Thanksgiving-themed tradition that supports the Cheyenne COMEA Shelter for the homeless. The COMEA Turkey Trot is back and better than ever! We’re kicking off the morning with the Gobble Wobble at 8:45am, a short and exciting fun run just for kids ages 3–12. Every child receives a goodie […]
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 […]
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 […]
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 […]
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.
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 […]
BINGO! Trail Runs
This event is an HPRS "Trail Party," designed to promote community and provide runners of all abilities an opportunity to enjoy trail and ultra running in a fun, stress free, environment. The Bingo! Trail Runs is a one-of-a-kind event, where each runner continues to run loops until they obtain a Bingo on their bib. A […]
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 […]
Mountain Madness Fall Frenzy Orienteering Trail Race
Teamwork, strategy, and adventure await in Mountain Madness, Colorado’s unique team orienteering trail race! In this all-terrain challenge, teams must rely on map and compass skills to navigate the rugged wilderness and collect as many checkpoints as possible before time runs out - no GPS allowed! There’s no set course, only the raw beauty of […]
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!
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, […]
Team Boss CO Mile + 2 Mile 4 REAL
TEAM BOSS MILE & 2 Mile 4 Real Are Back! It's time to put your cross country fitness to the test on the track and see how fast you can run one mile, two miles or 400m! This event will be held under the lights at Niwot High School's track on November 12th, from 5-8pm! […]
Hustle for Hope at CHNC
Proceeds from the event benefit Hope for HIE, the global non-profit patient advocacy and support organization focused on improving the quality of life for children and families affected by neonatal and pediatric Hypoxic Ischemic Encephalopathy through awareness, advocacy, education, research, and support. Click here to learn more about Hope for HIE. REGISTRATION The event registration is […]
Leyden Rock Turkey Trot
Join us for the annual Leyden Rock Turkey Trot 5K on November 16th at 9 AM, where fun and community come together! This year, we’re excited to introduce individual timers for every runner—each registrant will receive a timed bib for live-action tracking, so you can compete with friends or beat your personal best! & your […]
Tava Waters Turkey Trot 5K
Join TAVA Waters' Fitness for the annual Turkey Trot 5K! Meet at the Capitol round-a-bout!
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, […]
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.
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