ONLINE REGISTRATION IS NOW CLOSED, BUT WE WILL BE OFFER RACE DAY REGISTRATION ONSITE, STARTING AT 6AM


The "Grandfather" or maybe the "Godfather" of the ERS. This is the race that started it all, and the race that every runner must do if looking to put feet to dirt... (and cool off off by jumping in the reservoir)

Septmeber 16th, 2017, will see the 8th Annual Denver Trail Half Marathon and 10k, hit the trails once again at beautiful Cherry Creek State Park in Aurora, CO.  The race will start and finish on the West side of the park at Hobbie Hill, next to the marina. 

Registration Fees

10K Closed

Half Marathon Closed

Denver Half Marathon

Denver 10k

Site Map

Event Schedule

  • September 16 6:00 AM MDT - Race Day Registration

  • September 16 8:00 AM MDT - Half Marathon Start

  • September 16 8:10 AM MDT - 10k Start

Contact Information

Event Location

4201 S Parker Rd, Aurora, CO 80014, United States

Click here to view map