How many times can you run the 11 mile reservoir loop in 12 hours? Find out at the inaugural RunStrong Rez Loop Challenge. Each loop will start and finish at the RunStrong Training Center. The course will be lightly marked and there will be no on-course support. There will be plenty of refreshments, food, and air conditioning at RunStrong for participants to recover and rehydrate between loops. Participants are welcome to drop a bag or cooler along the course prior to the event. 

Upcoming Races

Jun 5 2021
12 Hours
Multiple Loop Course
2 Elevation Rating
Rolling, ~2500 feet in 50 miles
2 Surface Rating
Mostly groomed trail or dirt roads


12 Hours View course top times

Date Finishers Top Result Top Result (F)
06/06/20 No Results Posted. Submit Results
06/08/19 No Results Posted. Submit Results
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information. If you see an error, please let us know

Last Call 50 Miler

  • Jul 11, 2021
  • Fairplay, CO
53.5 Miles