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Grindstone Trail Running Festival by UTMB
UltraUnited StatesVirginia

Grindstone Trail Running Festival by UTMB2026

18.09 – 20.09.2026Natural Chimneys Park (United States)Registration closed
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Pacing, fueling and crew sheet for the course you pick

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6’400 m D+

167.4 km100Mlongest of 4 courses

4 courses

  1. 21km

    500 m D+

    484 m D-

    avg 2%

    21K

    19.09. · 4 aid stations

    UTMB Index 20K1
    GPX

  2. 50km

    1’550 m D+

    1’334 m D-

    avg 3%

    50K

    19.09. · 6 aid stations

    UTMB Index 50K2
    GPX

  3. 100km

    3’350 m D+

    3’205 m D-

    avg 3%

    100K

    19.09.

    UTMB Index 100K3
    GPX

  4. 167.4km

    6’400 m D+

    5’971 m D-

    avg 4%

    100M

    18.09. · 17 aid stations

    UTMB Index 100M4
    GPX

Course analysis

167.4 km6’400 m D+

231effort kmⓘ167.4 km on the map · feels like 231 km
D+
6’400 m
D−
5’971 m
Max alt.
1’323 m
Steepest
24%

Segments

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Elevation profile: 100M

405 m — 1’323 m

Feels like these

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Grindstone Trail Running Festival by UTMB, in one roadbook.

Includes this race's official aid stations and cutoff times.

Build your race plan →

The race

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.

Where to stay

Find a place to stay near Natural Chimneys Park for the race.

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