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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 in the Shenandoah Valley on an iconic running adventure complete with stunning fall foliage, mountain views, and demanding terrain. With a 100M, 100K, 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

100M

With approximately 21,000’ of vertical gain that includes monster climbs and the solitude of single-track ridge running, the Grindstone 100-mile race is considered by many to be the most incredible ‘hundo’ east of the 100th meridian.

Race Details

Race Category

ws100M

Running Stones

4

The race

100M

Distance

160km

Elevation Gain

21000feet

Start Date

22nd September 2023

100K

Offering 11,000’ of vertical gain, adventure awaits as you experience some of the most scenic and challenging sections of the 100-mile course in this 100K version of Grindstone by UTMB.

Race Details

Race Category

ws100KM

Running Stones

3

The race

100K

Distance

62miles

Elevation Gain

11000feet

Start Date

23rd September 2023

21K

The Grindstone half marathon course throws a killer climb, a fun ridge run, and a bombing downhill at you, all while still offering a blazing fast start and finish for those interested in a little taste of everything!

Race Details

Race Category

ws20KM

Running Stones

1

The race

21K

Distance

13.1miles

Elevation Gain

1700feet

Start Date

23rd September 2023

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