Grindstone Trail Running Festival by UTMB
September 18th 2026
Augusta County, VA
50 KM |
100 KM |
100 Miles
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.
Upcoming Races
Sep 19 2026
50 KM
With just over 5000’ of climbing, the Grindstone 50k offers a challenging and scenic course combining gorgeous single track with some fire road running as you get a little taste of both 100k and 100-mile courses.
5,020
5,020
ft.
Mixture
4 Aid
Stations
9:00 Cutoff
3
Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3
Surface Rating
Some rocks, root, and/or ruts
Sep 19 2026
100 KM
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.
11,020
11,020
ft.
Mixture
9 Aid
Stations
18:00 Cutoff
4
Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3
Surface Rating
Some rocks, root, and/or ruts
Sep 18 2026
100 Miles
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.
Pre 2023
21,053
21,053
ft.
Out and Back
15 Aid
Stations
36:00 Cutoff
4
Elevation Rating
Very hilly, ~7500-12,500 feet in 50 miles
3
Surface Rating
Some rocks, root, and/or ruts
Additional Distances
This event also has the following sub ultra distances
21 KM
Results
50 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 09/20/25 | 239 | 4:25:36 | 4:19:37 |
| 09/21/24 | 171 | 4:31:03 | 3:57:10 |
100 KM
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 09/20/25 | 156 | 11:24:54 | 9:38:11 |
| 09/21/24 | 211 | 11:22:44 | 10:36:26 |
| 09/23/23 | 234 | 10:37:25 | 8:54:43 |
100 Miles Pre 2023
| Date | Finishers | Top Result (F) | Top Result (M) |
|---|---|---|---|
| 09/19/25 | 109 | 26:36:23 | 21:47:22 |
| 09/20/24 | 171 | 23:31:16 | 21:23:46 |
| 09/22/23 | 184 | 24:39:02 | 19:10:06 |
| 09/16/22 | 134 | 24:25:57 | 18:29:41 |
| 09/17/21 | 156 | 26:13:19 | 20:02:04 |
| 10/02/20 | Race Cancelled | ||
| 10/04/19 | 198 | 24:23:01 | 19:44:19 |
| 10/05/18 | 207 | 22:22:38 | 20:08:28 |
| 10/06/17 | 182 | 22:59:18 | 18:40:37 |
| 10/07/16 | 179 | 23:47:13 | 19:39:07 |
| 10/02/15 | 104 | 23:36:51 | 20:24:04 |
| 10/03/14 | 188 | 22:53:13 | 18:34:40 |
| 10/05/12 | 108 | 27:45:42 | 17:13:04 |
| 10/01/10 | 71 | 23:05:28 | 19:44:32 |
| 10/02/09 | 62 | 23:34:59 | 18:46:26 |
| 10/03/08 | 62 | 21:54:09 | 20:38:57 |