Oct 17, 2026
Taking place on the trails between Horsetooth Mountain Park and the Devil’s Backbone Open Space, the Blue Sky courses ...
Oct 11, 2026
Join the WESTY HALF and 5k this fall!The Hometown Race Series features half marathons and 5k distance events in outlying...
Oct 10, 2026
Every runner receives a Collectable Bib with 3 Pull-Tags to collect their goodies at the Finish line. Each distance has...
Oct 10, 2026
Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Lo...
Oct 10, 2026
Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Lo...
Oct 10, 2026
Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Lo...
Oct 04, 2026
Starting and ending at The Island at Pelican Lakes in Water Valley, with a great after party including food, drinks, mus...
Oct 03, 2026
With the Fall Season, Estes Park shines in colors and wilderness experiences! Herds of Elk begin to roam the meadows and...
Oct 03, 2026
You CAN 5k. This event is for EVERY ONE. EVERY BODY.You won't get lost. You won't get forgotten. You'll run (or jog ...
Oct 03, 2026
The Wildcat Mountain Trail Races showcase some of the most scenic terrain in the HRCA Backcountry Wilderness Area, givin...
Oct 04, 2026
The Bear Chase Race Endurance Festival is a 100K, 50 Mile, 50K, Half Marathon, 10K and the New 5k trail race at beautifu...
Sep 27, 2026
Welcome to the Red Feather Trail Jamboree, a three-day trail running weekend put on by trail runners for trail runners.C...
Sep 26, 2026
Enjoy the end of another Colorado summer with a workout with family and friends, and then reward yourself with delicious...
Sep 26, 2026
Put on your lederhosen and sneakers as we kick off the annual HRCA Oktoberfest 5K in Town Center on Saturday, September ...
Sep 19, 2026
The 51th Annual Run the Rockies Road 10k and Half Marathon will feature the traditional Run the Rockies road race course...
Sep 19, 2026
Miles 4 Madison is a 5K/1K Fun Run supported by Sterling Ranch CAB. Miles 4 Madison's goal is to provide educational and...
Sep 19, 2026
The Autumn Run is held each year on the third weekend in September, in and around the historic, friendly, and picturesqu...
Sep 19, 2026
Yo, check out the mic! Lace-up for the 12th Annual Fall Fest, where the beauty of Colorado's great outdoors meets the to...
Sep 18, 2026
We're heating things up after dark with Severance's 1st Glow Run!!Grab those glow sticks!...
Sep 12, 2026
Helping to Heal! The 13th Annual Spirit of the Valley Run, Walk 'N Roll 1K and 5K timed races are set for Saturday Septe...
Sep 12, 2026
Join us at the YMCA of the Rockies in Granby for the 12th annual Snow Mountain Ranch Trail Running Festival.This event f...
Sep 12, 2026
THE Denver 5k! Denver's Iconic Sloan Lake is the setting for the return of 'THE Denver 5k'. Celebrate with friends and f...
Sep 12, 2026
Taking place on the trails of Lory State Park to the northwest of Fort Collins, Colorado, the Black Squirrel Trail Half ...
