Train for Grindstone
The Grindstone 100K hits Reddish Knob and the same Appalachian ridges on a tighter cutoff.
100 km+8,211 ft-8,211 ft18 hours1,342 ft to 4,259 fttech 6/10Checkpoints per race bookAppalachian ridgesUTMB IndexWSER qualifierSeptember
- Start1,342 ft
- High4,259 ft
- Low1,342 ft
- Finish1,342 ft
What PR Run builds for this start line
- Personalized plan from your baseline and this course profile
- Aid-segment fuel rehearsals tied to checkpoint spacing
- Structured gear kit from course intelligence
- Race-day pacing, crew notes, and race-morning brief
- Aid stations: 6 · longest gap ~20.1 km
- Mandatory kit items: 2
- Cutoff: 18 hours
The crux
Reddish Knob on an eighteen-hour clock (near mile 40)
Race details can change. Confirm current rules and logistics with the Official site.
Train for your race
Train for Grindstone
Course-specific plan, fuel segments, gear kit, and race morning for Grindstone.
Official siteCheck readinessPredict finish timeFull race guideFoot care plan