Rock Canyon Half Marathon

City Park - Pueblo 800 Goodnight Ave, Pueblo, CO, United States

It is exciting to bring you another exquisite day of racing alongside the scenic Arkansas River! This is a fast course that starts in Pueblo's City Park and takes you […]

Jingle Bell Run

Washington Park - Denver 701 S Franklin St, Denver, CO, United States

Be part of the original festive race for charity and signature Arthritis Foundation holiday event! Wear your favorite holiday attire and together, we’ll jingle all the way to a cure! […]

Event Series Front Range Freeze

Sweaty Sweater 5K

Foothills Mall 215 E. Foothills Parkway, Fort Collins, CO, United States

5k Run/Walk – 9:00 am Kid’s 1-Mile – 10:00 am Calling all Ugly Sweaters… We want to see your most hideous, outrageous, bulky and unforgettable UGLY sweater running the Sweaty […]

$44.35

Santa Catch 5K/10K

NOCO Sports Center 5699 Crooked Stick Dr, Windsor, CO, United States

Start your holiday season with the joy of running! Proceeds from this race benefit the nonprofit Adopt A Family- serving thousands of local families in need this holiday season. All […]

Winter Warmup 5K

Bible Park 6802 E Yale Ave, Denver, CO, United States

Entry Fees & Registration 5k Registration: Free 1 Mile Registration: Free Kiddie Kruze Registration: Free *** Our group runs are free for this event but we welcome donations. These can be monetary or […]

YMCA Jingle Jog 5K

Fountain-Fort Carson High School 900 Jimmy Camp Road, Fountain, CO, United States

Get ready for the Annual Jingle Jog 5K and Kids' Reindeer Romp as we take on the fun and festive course at the Fountain Creek Regional Park! We are excited […]

CMRA Sand Creek 5M

Bluff Lake Nature Center 3400 Havana Way, Denver, CO, United States

Runners will compete over a 5 mile distance. runners and Race Walkers will compete over a 5 KM distance. The course will use the crushed gravel trails and single track […]

The Santa Run

Louisville Community Park 955 Bella Vista Dr, Louisville, CO, United States

Santa IS coming to town... he lands in Louisville on December 14! 10:am Race start...we offer a 10k, 5k and kids Mile Trail Race on the trails around Louisville. SNOW […]

$35.00

Winterfest 5K

Carpenter Park 3498 E 112th Ave, Thornton, CO, United States

Kick off the holiday season with a spirited run/walk at Thornton's Carpenter Park. Choose from the chip-timed 5k, or experience the festive atmosphere in a shorter distance in our untimed […]

Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.