Grindstone Running Festival by Utmb

The Grindstone Running Festival by UTMB is a premier trail running event held in the scenic Shenandoah Valley, Virginia, featuring challenging courses through the George Washington and Jefferson National Forests. Set against stunning fall foliage and mountain views, the festival offers four race distances: 100 miles, 100 kilometers, 50 kilometers, and 21 kilometers. Known as one of the hardest courses on the U.S.

East Coast, it includes demanding terrain with high elevation gains, ridges, peaks, and valleys. The event serves as a dual qualifier for the UTMB World Series Finals and the Western States Endurance Run, attracting runners seeking to push their endurance in a breathtaking natural setting. Visit the organization's website for the most recent information.