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 ...
Aug 29, 2026
Held on the gorgeous, thrilling and rolling trails of Castle Rock’s Miller Park & Ridgeline Trail systems.While no...
Aug 29, 2026
Join us for a fun filled day focused on physical & mental wellness, family, fun and our furry friends....
Aug 23, 2026
Welcome to the Pioneer Prairie Dog Half Marathon event; the one that started the series! With 10k and 5k events too!Ever...
Aug 22, 2026
Welcome to the Staunton Rocks! Marathon & Half, an event put on by trail runners for trail runners.Touring the renow...
Aug 22, 2026
Lace up your running shoes and join us for the Byers Peak Stampede! Whether you’re up for a scenic 5K stroll or ready ...
Aug 16, 2026
As the shortest race in the Leadville Race Series, the Leadville 10K Run offers runners a unique opportunity to experien...
Aug 16, 2026
Join us for the Erie Half and 5k!The Hometown Race Series features half marathons and 5k distance events in outlying com...
Aug 15, 2026
Since 1992, the Mount Sneffels Education Foundation has funded over $1.5 million into over 865 programs, enriching the l...
Aug 15, 2026
Since 1992, the Mount Sneffels Education Foundation has funded over $1.5 million into over 865 programs, enriching the l...
Aug 15, 2026
Join the Grand Junction Sports Commission for the Just Peachy 5K & 10K. This fun 5K is great for families and begin...
Aug 08, 2026
The Run the Rockies Trail 5k, 10k, and half marathon will lead runners through the Frisco Peninsula trails with breathta...
Aug 08, 2026
Don't miss the 14th annual Runapalooza benefiting Salute Colorado! As summer mornings begin to cool, join us for a fanta...
Aug 25, 2026
Join us this August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races...
Aug 18, 2026
Join us this August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races...
Aug 11, 2026
Join us this August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races...
Aug 04, 2026
Join us this August for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races...