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Your east coast trail running adventure

About the race

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.

Discover the Races

Registrations open

19th September 2025
100M

Race Category

ws100M

Running Stones

4

Distance

160 KM

Elevation Gain

6400 M+

Registrations open

20th September 2025
100K

Race Category

ws100KM

Running Stones

3

Distance

100 KM

Elevation Gain

3350 M+

Registrations open

20th September 2025
50K

Race Category

ws50KM

Running Stones

2

Distance

50 KM

Elevation Gain

1550 M+

Registrations open

20th September 2025
21K

Race Category

ws20KM

Running Stones

1

Distance

21 KM

Elevation Gain

500 M+

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