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100K ultra runs requiring navigation skills in UK

Find 100k ultra runs requiring navigation skills in UK in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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  • Sun 3 May 2026
Shipston-on-Stour, Warwickshire, UK

Tempo Trail Races | 100K Ultra

  • 100 km trail running + 6682 ft ascent
  • Fri 18 Sep 2026
Hope Valley, Derbyshire, UK

Peak District Challenge | Gold Ultra 100K

  • 100 km trail running + 3300 m ascent

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