Grindstone Running Festival by UTMB
Trail Running covering 21 km to 160.9 km with up to 6,400 m D+ in Mount Solon (Virginia, United States)
Grindstone Running Festival by UTMB is an endurance sporting event in Mount Solon, Virginia, US focused on Trail Running. It is part of UTMB World Series, UTMB Index Races. Key features include Nature & Off-Road, Mountain, Forest, High Altitude.
The race program comprises 4 competitions, including Trail 100 mi (160.93 km, +6,400 m D+), 100K (100 km, +3,350 m D+), 50K (50 km, +1,550 m D+), and 21K (21 km, +500 m D+). The next edition is officially confirmed from September 24, 2027 to September 25, 2027. Official race regulations, course details, and registration information are provided on the organizer's website (grindstone.utmb.world).

Event characteristics
Races & distances (4)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Trail 100 mi | Trail Running | 160.93 km | +6,400 m | 1,150 m - 3,838 m | Loop course | Route & profile |
| 100K | Trail Running | 100 km | +3,350 m | 1,153 m - 2,560 m | Loop course | Route & profile |
| 50K | Trail Running | 50 km | +1,550 m | 1,156 m - 1,807 m | Loop course | Route & profile |
| 21K | Trail Running | 21 km | +500 m | 1,159 m - 1,369 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 1,150 m to 3,838 m above sea level (+6,400 m D+, -6,400 m D-)
Elevation profile & course telemetry
Altitude from 1,153 m to 2,560 m above sea level (+3,350 m D+, -3,350 m D-)
Elevation profile & course telemetry
Altitude from 1,156 m to 1,807 m above sea level (+1,550 m D+, -1,550 m D-)
Elevation profile & course telemetry
Altitude from 1,159 m to 1,369 m above sea level (+500 m D+, -500 m D-)
Frequently asked questions (FAQ)
When and where does Grindstone Running Festival by UTMB take place?
Grindstone Running Festival by UTMB takes place in Mount Solon, Virginia, US (start area at coordinates 38.3449° N, 79.085° W). The next edition is officially confirmed from September 24, 2027 to September 25, 2027.
What races and distances are offered at Grindstone Running Festival by UTMB?
The race program comprises 4 competitions, including Trail 100 mi (160.93 km, +6,400 m D+), 100K (100 km, +3,350 m D+), 50K (50 km, +1,550 m D+), and 21K (21 km, +500 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for Grindstone Running Festival by UTMB?
The main competition (Trail 100 mi over 160.93 km) is designed as a loop course featuring +6,400 m of elevation gain and -6,400 m of elevation loss, ranging between 1,150 m and 3,838 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for Grindstone Running Festival by UTMB?
Official race regulations, course details, and registration information are provided on the organizer's website (grindstone.utmb.world).