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” you ask? The Narrowleaf Cottonwood Trees are the most densely populated tree species at Boyd Lake State park. We thought the name was fitting and […]

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. 

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 all the races are FREE to participate in.  We will be accepting donations for entrance fees but that is not a requirement for participation.  The […]

EAPL's Zombie fun run 5K is on Sunday, October 26th at 10am! 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. $30.00 Registration (through 10/24) Children 12 and under $15.00 (through 10/24) […]

Colorado's Longest running Halloween race....since 2006, we have changed the THEME to this race year after year! This 2025 Theme is:  Scary Clowns & Circus We wil have scary music and a CIRCUS Themes Expo at the start/finish. Hired Clowns on site and a circus atmosphere with Games, Hot Dogs, Pop Corn and Drinks. Stay […]

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 […]

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 running journey. Want to see how far you can go in 6, 12 or 24 hours? Or achieve a new furthest distance? What about setting […]

Race Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]

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 […]

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.

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 & […]

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 […]

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 […]

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 […]

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 […]

Join us for our Dia de los Muertos 5k run @ Cheluna Brewing on November 1, 2025, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Aurora. Run, walk, jog - whatever goes! Complete the course and celebrate with us and a FREE, local craft brew at the finish […]