Grindstone 100 Mile 2027

24.09 – 19.09.2027Natural Chimneys Park (United States)

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1 course · 167.4 km104 mi

At a glance

Grindstone 100 Mile 2027 takes place from Friday 24 to Sunday 19 September 2027 in Natural Chimneys Park (Virginia, United States). One distance: 167.4 km.

The course is 167.4 km with 5’532 m D+ (33 m per km: hilly terrain). It has 15 aid stations and 11 cutoffs. Terrain: 66% trail, 20% forest track and 14% road. Terrain data: © OpenStreetMap contributors.

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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…

From the organiser

1 course

167.4km104mi
5’532 m D+18’150 ft D+
5’971 m D-19’590 ft D-
avg 3%
100mi
24.09. 18:00 · 15 aid stations
No index
GPX

Course analysis

100mi167.4 km104 mi5’532 m D+18’150 ft D+

223effort kmⓘ167.4 km on the map · feels like 223 km104 mi on the map · feels like 223 km

D+: 5’532 m18’150 ft
D−: 5’971 m19’590 ft
Max alt.: 1’323 m4’341 ft
Steepest: 24%

Segments

Elevation profile: 100mi

405 m – 1’323 m1’329 ft – 4’341 ft

Terrain

Aid station by aid station

Terrain, climb and cutoff between each aid station.

Start → Lick Run 1 km 0 → 9.2km 0 → 5.7
9.2 km5.7 mi · +202 m663 ft · −75 m246 ft
Lick Run 1 → Wolf Ridge km 9.2 → 18.6km 5.7 → 11.6
9.4 km5.9 mi · +274 m899 ft · −255 m837 ft · Cutoff Fri 21:30
Wolf Ridge → Reddish Knob km 18.6 → 32.9km 11.6 → 20.4
14.3 km8.9 mi · +890 m2’920 ft · −154 m505 ft · Cutoff Sat 00:30
Reddish Knob → Little Bald Knob km 32.9 → 39.3km 20.4 → 24.4
6.4 km4 mi · +134 m440 ft · −204 m669 ft
Little Bald Knob → North River Gap 1 km 39.3 → 53.2km 24.4 → 33
13.9 km8.6 mi · +307 m1’007 ft · −1’019 m3’343 ft · Cutoff Sat 04:00
North River Gap 1 → Lookout Mountain km 53.2 → 62.3km 33 → 38.7
9.2 km5.7 mi · +448 m1’470 ft · −164 m538 ft
Lookout Mountain → Dowell’s Draft 1 km 62.3 → 74.5km 38.7 → 46.3
12.2 km7.6 mi · +297 m974 ft · −491 m1’611 ft · Cutoff Sat 09:00
Dowell’s Draft 1 → Dry Branch Gap 1 km 74.5 → 85.5km 46.3 → 53.1
11 km6.8 mi · +627 m2’057 ft · −415 m1’362 ft · Cutoff Sat 11:00
Dry Branch Gap 1 → Cold Springs km 85.5 → 96.9km 53.1 → 60.2
11.4 km7.1 mi · +577 m1’893 ft · −704 m2’310 ft
Cold Springs → Dry Branch Gap 2 km 96.9 → 105.8km 60.2 → 65.8
9 km5.6 mi · +369 m1’211 ft · −143 m469 ft · Cutoff Sat 15:30
Dry Branch Gap 2 → Dowell’s Draft 2 km 105.8 → 116.8km 65.8 → 72.6
11 km6.8 mi · +364 m1’194 ft · −615 m2’018 ft · Cutoff Sat 18:00
Dowell’s Draft 2 → Magic Moss km 116.8 → 125.4km 72.6 → 77.9
8.6 km5.3 mi · +265 m869 ft · −253 m830 ft · Cutoff Sat 20:00
Magic Moss → Camp Todd km 125.4 → 133.5km 77.9 → 83
8.1 km5 mi · +233 m764 ft · −35 m115 ft · Cutoff Sat 21:30
Camp Todd → North River Gap 2 km 133.5 → 149.7km 83 → 93
16.2 km10 mi · +641 m2’103 ft · −1’006 m3’301 ft · Cutoff Sun 01:45
North River Gap 2 → Lick Run 2 km 149.7 → 162.1km 93 → 100.7
12.4 km7.7 mi · +327 m1’073 ft · −333 m1’093 ft
Lick Run 2 → Finish km 162.1 → 167.4km 100.7 → 104
5.3 km3.3 mi · +17 m56 ft · −102 m335 ft

Elevation figures are measured by Kliva on the course trace. Cutoffs are the organiser's.

Race plan

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Pacing, aid stations and fueling timed to your effort on Grindstone 100 Mile, in one roadbook.

Includes this race's official aid stations and cutoff times.

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