Endurance Race Series

Welcome to the Endurance Race Series, home to 15 total trail races in Colorado and California.

Whether you are a competitive trail racer, an avid runner, or a trail beginner, our races have what you are looking for...

Challenging, yet beginner friendly race courses, great mountain views, with a family friendly atmosphere, and fun post race celebration!!

If you are looking for a stroll along the water, some scenic single track, or a challenging hill course, the ERS prides itself on offering trail runners the BEST race experience and atmosphere in the industry.

Every event within the ERS, offers multiple race distance options, great course support, kid's races, and finish line festivals that the entire family can enjoy with music, food, games, raffles, and plenty of beer (for those over 21 years, of course).

OUR MISSION:
It is the mission of the Endurance Race Series to provide competitive, quality events to the runners in the trail running community, while providing an entertaining, relaxing, family friendly atmosphere to those spectators and sponsors in attendance.​