Welcome to the Endurance Race Series!

Weather you are a competitive trail racer, an avid runner, or a trail beginner, the ERS has what you are looking for... Challenging, yet beginner friendly race courses, spectacular views, family friendly atmosphere, and a fun post race celebration.

Oh... and free race photos for all runners to enjoy after each race.

 Registration Includes:

  • Professional Chip Timing

  • Finishers Medals

  • Overall Winner Prizes

  • Age Group Prizes

  • Free Race Photos

  • Finish Line BBQ

  • Free Beer (when allowed)


  • Black Mtn Turkey Burner (VIRTUAL ONLY)
    Black Mountain Ranch Park
    Feb 27, 7:00 AM
    Black Mountain Ranch Park, 14700 Carmel Valley Rd, San Diego, CA 92129, USA
    Join us February 27, for our 4th Annual event and burn off all that Thanksgiving food, as we race up and over Black Mountain peak in the beautiful Rancho Penesquitos area of North County San Diego.
  • Coast to Crest 10K/ 5k (VIRTUAL EVENT)
    2801 Via De La Valle
    Mar 06, 7:00 AM
    2801 Via De La Valle, 2801 Via De La Valle, Del Mar, CA 92014, USA
  • Dixon Lake 10 Mile and 10K
    Dixon Lake
    Mar 13, 7:30 AM
    Dixon Lake, Dixon Lake, Escondido, CA 92027, USA
    The race will start in El Cabello Park, and take runners up the mountain near Stanley Peak and the surrounding area allowing runners a beautiful 360 degree view from the top. Elevation gains will be 900 to 1300' based on course distance.
  • Westminster Half Marathon, 10K, 5K
    Apr 24, 7:00 AM
    Westminster, 10200 W 100th Ave, Westminster, CO 80021, USA
    Start your trail racing off on the right foot with our annual Westminster trail race around beautiful Standley Lake
  • Barr Lake Half Marathon and 15K
    Adams County
    May 23, 7:00 AM
    Adams County, Barr Lake, Colorado, USA
    Join the Endurance Race Series as we head to Barr Lake State Park in Brighton, CO for some beautiful lake views and new PR's. The course is our flattest and fastest on the ERS schedule with less than 100' of elevation gain for either course



What We Know about 2021



  • All LIVEraces in 2021 will be planned for a staggered start in each race category

  • All race waves will be set for 25 runners/ wave, with planned increases based on guidelines

  • Race waves will be separated by 5 min

  • We plan to offer a pre-packaged food bag at the conclusion of the event. Runners will have the option to take one of these bags. All items included will be prepackaged.  

  • Medals will be individually wrapped when applicable

  • Hosting an event ceremony will be based on the local guidelines for each event.





Trail Running is not just for adults...


The ERS is excited to offer our very popular "Kids Dash". These races are geared toward those kids 10 years and younger, and will measure between 1/4-1/2 mile in distance based on the kids participating. 

2019-2020 San Diego Races... All proceeds raised will benefit Girls on the Run San Diego



In an attempt to minimize our footprint the ERS will begin 100% CUPLESS Racing  at the start of the Summer Series 2020.

What is CUPLESS Racing?  The ERS will provide the aid stations on course with electrolyte and water, while runners will need to provide a hydration vest, bottle, or reusable cup to use at the aid stations. Runners are allowed to fill up as much as needed




If you are a local (or national) company looking to be a part of a fun, family friendly Finish Line Festival at some of the best trail races in Colorado and San Diego, then the ERS has a spot for you. 

If you are interested in becoming a Sponsor to the ERS, please email us HERE, so we can get you some more info. If you are interested in becoming a vender at one of our events then follow the link below to sign up.


Virtual Race Options

Racing as we know it has been changed by today's health crisis..  ERS understands and acknowledges the best way to continue the race experience and support the runner is to offer a virtual option for each of our races.


A virtual  race allows the runner to run the race at their pace, in a location that works for their schedule, all while earning a finishers medal, shirt, and bib.


"The ERS staff goes out of their way to give you the best trail race experience ever"

- Mandi R. 

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...and even if you don't love us, sign up anyways its free!

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© 2021 Endurance Race Series, LLC