The Annual ERS Finale... The 6th Annual Louisville Trail Half Marathon, 10K, 5K has been the Endurance Race Series' largest event the past 5 years... This Flat and Fast Course is sure to be a a PR breaker.  

Using the backdrop of the Flat Irons and beautiful Louisville, CO, this race tours the trails and sights of the area offering a breathtaking landscape for this amazing race... 

The Lousiville Trail Race offers great a family friendly atmosphere with our post race festivities, so bring the family and enjoy the morning with us!!


*Any runner registering after 9/30/18 will NOT be guaranteed a shirt prior to race, because of shirt ordering timelines. We ask all these runners come to registration at conclusion of event to see what shirt sizes remain. 

Registration Fees

Half Marathon

Half Marathon (No Shirt)


10k (No Shirt)


5k (No Shirt)

Louisville Site Map

Louisville 10k

Louisville Half


Event Schedule

  • October 7 6:00 AM MDT - Race Day Packet Pickup (until 7:45AM)

  • October 7 8:00 AM MDT - Half Marathon

  • October 7 8:10 AM MDT - 10K

  • October 7 8:15 AM MDT - 5K

  • October 7 10:00 AM MDT - Kids Race Start

Contact Information

Event Location

955 Bella Vista Dr, Louisville, CO, United States

Click here to view map