Colorado 15K Races

Upcoming 15k races in Colorado, sorted by date.

Dec 2026

Candy Cane Course - Colorado Springs

Colorado Springs, CO · Virtual option · from $22

Candy Cane Course - Denver

Westminster, CO · Virtual option · from $22

A coach turns a goal time into a plan built around your schedule, your history and your race, and can meet you in Colorado.

Lucky Brew Race 5K, 10K, 15k & Half Marathon

Severance, CO · from $20

Treat Trot - Denver

Denver, CO · Virtual option · from $17

Treat Trot Colorado Springs

Colorado Springs, CO · Virtual option · from $17

Grin & Bear It

Crested Butte, CO

Summer Sizzler- Colorado Springs

Colorado Springs, CO · Virtual option · from $17

Pace calculator →

Pace, finish time, race predictions and training paces.

Mile-by-mile pace band →

Printable splits with negative-split and hill adjustments.

Race listings come from RunSignup. Dates, prices and details can change, so confirm on the race's registration page.