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Trail · 100 Mile

Grindstone by UTMB

· starts 6:00 PM (Fri)
Swoope, VA

WSER QualifierUTMB Direct 34 UTMB Running Stones
The race's site ↗Course map ↗

Grindstone by UTMB is a trail race of 100 miles (161 km) in Swoope, Virginia. The next edition is on Friday, September 24, 2027, starting at 6:00 PM (Fri). The race gives its climbing as 22,999 ft (7,010 m); measured from its course file, it's 20,430 ft (6,227 m). It starts at 1,340 ft (408 m) above sea level. Its high point is 4,334 ft (1,321 m). The course finishes where it starts. It's a Western States 100 qualifier and a UTMB World Series Event, whose top three men and women go straight to the UTMB Finals. Finishers earn 4 UTMB Running Stones toward the UTMB lottery. Registration is open to all; registration opened on October 1, 2025. The field is about 250 runners.

104miDistance
22,999ftClimbing
250runnersField
77°Flow 56°FTypical race day

The course

104miMeasured distance
—Aid stations
20,430ftMeasured climb
20,427ftDescent
4,334ftHigh point
1,330ftLow point

Questions about Grindstone by UTMB

When is Grindstone by UTMB 2027?

Grindstone by UTMB 2027 is on Friday, September 24, 2027, starting at 6:00 PM (Fri) local time.

Where is Grindstone by UTMB?

Grindstone by UTMB is held in Swoope, Virginia.

How long is Grindstone by UTMB?

Grindstone by UTMB is 100 miles (161 km); its course file measures 104 miles.

How much elevation gain does Grindstone by UTMB have?

Grindstone by UTMB has 22,999 ft (7,010 m) of elevation gain, as the race states it.

Is Grindstone by UTMB a Western States qualifier?

Yes. Grindstone by UTMB is on the Western States 100's list of qualifying races. Check wser.org for the qualifying standard and years.

How do you get into Grindstone by UTMB?

Grindstone by UTMB has open registration. Registration opened on October 1, 2025.

What is the weather usually like at Grindstone by UTMB?

Around Grindstone by UTMB's date, the day's high is typically about 77°F (25°C) and the low about 56°F (13°C), averaged over recent years.

Where can I see the Grindstone by UTMB elevation profile and aid station cutoffs?

runfarwhere has Grindstone by UTMB's course file. The outline, distance and climbing are free on its page; the elevation profile, aid stations with cutoffs and the GPX file are part of runfarwhere Premium.

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