Grindstone 100 Miler is an annual 100 mile long ultramarathon that takes place on trails in Virginia's Allegheny Mountains, usually held during the end of September.
The race starts at Camp Shenandoah, a local camp of the Boy Scouts of America. Beginning at Camp Shenandoah, this out-n-back course ascends and descends Little North Mountain before climbing over in to the summit of Elliott Knob.
The course then proceeds north following the ridgeline of the Great North Mountain range, crossing over to and following the Wild Oak Trail before continuing north to the summit of Reddish Knob.
Runners continue north to Briery Branch Gap before retracing their steps (without summiting Elliott & Reddish) back along the course to Camp Shenandoah. Runners climb a cumulative total of and descend a total of on mountain trails before reaching the finish.
All sub-38 hour finishers receive a Grindstone 100 Belt Buckle, and a finishers shirt. First place overall male and female runners will receive the Grindstone Champion's trophy. Special awards are also given out to the top 5 male and female finishers, first place male and female masters (40-49), grand masters (50-59) and male super masters (60 and over) and Best Blood.
Grindstone is the fourth race in the Beast Series, which comprises six races: Holiday Lake 50 km, Terrapin Mountain 50 km, Promise Land 50 km, Grindstone 100M, Mountain Masochist Trail Run 50 miler, and the Hellgate 100 km.
In 2023, it was rebranded as Grindstone Trail Running Festival by UTMB and became part of the UTMB World Series Finals.
The race is a triple qualifier for UTMB Mont-Blanc, Western States Endurance Run and the Hardrock Hundred Mile Endurance Run.
Results 2026 +100M - MenPlaceName1 Jordan Buck2 Spencer Imbach3 Chris Aldrich
+100M - WomenPlaceName1 Katti Jackson2 Jessie George3 Sarah Gage
2025 +100M - MenPlaceName1 Christopher Sobie2 Yannick Bernard3 Nick Luden
+100M - WomenPlaceName1 Isabelle Danforth2 Justine Koksal3 Celia Nalbach
2024 +100M - MenPlaceName1 Gavin Prior2 Anton Krupicka3 Alex Proctor
+100M - WomenPlaceName1 Katti Jackson2 Jill Dennes3 Tatiana Rypinski
2023 +100M - MenPlaceName1 Mike McMonagle2 Grant Barnette3 Joe Miller
+100M - WomenPlaceName1 Alissa St. Laurent2 Shelby Johnson3 Serena Eley
2022 +100M - MenPlaceName1 Daniel Frank2 Andrew Macgibbon3 Nicholas Wirz
+100M - WomenPlaceName1 Shannon Cebron2 Meridith Ussery3 Meg Landymore
References
External links Grindstone Running Festival by UTMB Grindstone Running Festival in the UTMB World Series Grindstone 100M Course Description Detailed Course Mapping Data (.gpx file for navigation)