50K multilappers can start anytime after 7am...you'll lap the 5 mile course...this time you will have 5 hours to START your final lap...so 12pm to start...50K buckles are the goal! 

Upcoming Races

Mar 21 2021
50 KM
Multiple Loop Course
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts


No Past Races
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

Tommyknocker 12-Hour & Mine Shaft Half

  • May 15, 2021
  • Golden, CO
12 Hours