Grindstone Trail Running Festival by UTMB 2026
September 18, 2026
Natural Chimneys Park, US
About
Feed your sense of adventure and join us for the Grindstone Running Festival by UTMB. This one-of-a-kind event takes you through acres of national forest just west of the Shenandoah Valley on an iconic running adventure complete with stunning fall foliage, mountain views, and demanding terrain. With a 100M, 100K, 50K, and 21K, there's a new challenge for every runner. Join us for this feat to push your endurance, get gritty, earn your stones, and qualify for the iconic UTMB® World Series Finals. The Grindstone Trail Running Festival by UTMB is a dual qualifier for the iconic UTMB® World Series Finals and the Western States Endurance Run.
Pick your distance
Everything below adapts to your choice
Start time
2026-09-18
Why this race
- Listed on the official UTMB World Series calendar.
The information shown here is based on the most recent listing we could find, and may change. Always confirm details on the event's official site before registering.