Event Series Dash and Dine 5K

Dash and Dine 5K

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

The Dash & Dine 5k run, Boulder's favorite spring tune-up run series is back for 4 races in May at the beautiful Boulder Reservoir in Boulder, CO.

PPRR Nielson Challenge

North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United States

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 […]

Event Series Denver Twilight 5000

Denver Twilight 5000

The Englewood Campus Stadium 3800 S Logan St, Englewood, CO, United States

What began as a low-key 5K on the esplanade in Boston has grown to become an international series of track meets featuring the same accessible distance and the same incredible […]

5K Fun Run of Red Feather Lakes

The Tavern at Red Feather Lakes 1078 Ramona Dr, Red Feather Lakes, CO, United States

Enjoy a scenic fun run in and around Red Feather Lakes, Colorado including a route through Fox Acres Golf Course! Start in the village and end at The Tavern at […]

Last Call Fifties

South Park Recreation Center 1190 Bullet Rd, Fairplay, CO, United States

Do you remember the last dance at Prom? Nervous looks around, everyone hoping to be picked to awkwardly dance to Time After Time or Stairway To Heaven. We choose you, […]

Red Leg Brewing 5K

Red Leg Brewing Company 4630 Forge Rd, Suite B, Colorado Springs, CO, United States

Join us for The Red Leg Brewing 5k on July 9, 2023, for a 5k-ish, fun run event that starts and ends at this awesome taproom in Colorado Springs. Run, […]

East End Mile

Oddfellows Hall 1543 Pearl St., Boulder, CO, United States

Join us on Thursday July 13th, for the Downtown Boulder East End Mile. Our multi-lapped 1-Mile course starts and finishes on Pearl and 16th St., and goes up to 20th […]

Canceled Storm The Castle Half Marathon

Lorrayne Rance 10591 County Rd 102, Guffey, CO, United States

Human Trafficking is a serious problem across the world and here in the United States. We can help right here, right now. It has become common knowledge that women are […]

Canceled Black Hawk Trail Half Marathon and 10K

Golden Gate Canyon State Park Crawford Gulch Rd, Black Hawk, CO, United States

If you are looking for one of the best "hill" courses the ERS has to offer, than look no further! You can bet this course will keep your HR high, […]

Summer Six Pack Series #6 – 5K/10K

Westbrook Park 9650 W 97th Ave., Westminster, CO, United States

Run/Walk 1 mile at the first event through 6 miles at the final event in the series! We will be cheering for you the whole way. If you are a […]

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.