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WTF Dark Sky 220 / Cherry Springs 110 / Wooly 50K
UltraUnited StatesPennsylvania

WTF Dark Sky 220 / Cherry Springs 110 / Wooly 50K 2027

24.10 – 29.10.2027Pennsylvania (United States)Dates to be confirmed
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4 courses · 50–354.1 km31.1–220 mi · up to 12’192 m D+up to 40’000 ft D+

At a glance

WTF Dark Sky 220 / Cherry Springs 110 / Wooly 50K 2027 is expected from Sunday 24 to Friday 29 October 2027 in Pennsylvania (United States), date to be confirmed by the organiser. 4 courses from 50 to 354.1 km.

Longest course: Dark Sky 220, 354.1 km with 12’192 m D+ (34 m per km: hilly terrain). Terrain: 68% trail, 7% forest track and 17% road. Terrain data: © OpenStreetMap contributors.

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A series of ultra-trail races in northern Pennsylvania supporting the Warrior Trail Foundation, featuring the Dark Sky 220, Cherry Springs 110, and The Wooly 50K.
From the organiser

4 courses

  1. 50km31.1mi

    2’133 m D+6’998 ft D+

    avg 4%

    Wooly 50K
    No index

  2. 177km110mi

    6’096 m D+20’000 ft D+

    5’687 m D-18’658 ft D-

    avg 3%

    Cherry Springs 110
    No index
    GPX

  3. 354.1km220mi

    12’192 m D+40’000 ft D+

    9’442 m D-30’978 ft D-

    avg 3%

    Dark Sky 220
    No index
    GPX

  4. 354.1km220mi

    9’442 m D-30’978 ft D-

    220M
    No index
    GPX

Course analysis

354.1 km220 mi11’299 m D+37’070 ft D+

467effort kmⓘ354.1 km on the map · feels like 467 km220 mi on the map · feels like 467 km
D+
11’299 m37’070 ft
D−
9’442 m30’978 ft
Max alt.
784 m2’572 ft
Steepest
24%

Segments

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Elevation profile: 220M

179 m – 784 m587 ft – 2’572 ft

Race plan

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Pacing, aid stations and fueling timed to your effort on WTF Dark Sky 220 / Cherry Springs 110 / Wooly 50K, in one roadbook.

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