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50K ultra runs with no navigation required in West Sussex

Find 50k ultra runs with no navigation required in West Sussex in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Join over 1,200 runners and walkers to the Serpent Trail, a stunning route that weaves through the greensand hills, rivers, woodland, and lowland heath of the South Downs National Park.
  • Sat 18 Apr
  • FREE-£100
Midhurst, West Sussex, UK

Spring Trail Series | 50K

Join over 1,200 runners and walkers to the Serpent Trail, a stunning route that weaves through the greensand hills, rivers, woodland, and lowland heath of the South Downs National Park.

  • 50 km trail running + 1088 m ascent
  • Enter online
  • Age 18 & over

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