Running 4.167 miles in one hour seems easy, right? Well, how many times in a row do you think you can do that? Come out to the first backyard ultra being held in Pennsylvania and find out! 

The event takes place at the Lehigh Gap Nature Center whoch is home to 800 acres and over 15 miles of trail with breathtaking views all the way to the summit! The LGNC has worked tirelessly to rehabilitate the land to its current, healthy state after being badly damaged by zinc smelting. Part of the proceeds will go to benefit all of the great work the LGNC does!

Upcoming Races

May 21 2022
Variable Hours
Backyard format looped course, every lap will begin each hour, on the hour until one person is left.
380 380 ft.
Single Loop Course
1 Aid Stations
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts


Variable Hours

View course top times
Date Finishers Top Result (M) Top Result (F)
05/22/21 56 128.96 62.4
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

Sri Chinmoy 7 & 13 Hour Races

  • May 28, 2022
  • Seattle, WA
7 Hours 13 Hours