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100 mile ultra runs in Summer

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The 100-mile ultra for people who don't do 100-mile ultramarathons. Walk or run from Bamburgh Castle to Edinburgh Castle within 48 hours, fully supported.
  • Sat 25 Jul 2026
  • £330
Bamburgh, Northumberland, UK

Rat Race 100 Ultramarathon

The 100-mile ultra for people who don't do 100-mile ultramarathons. Walk or run from Bamburgh Castle to Edinburgh Castle within 48 hours, fully supported.

  • Recycling
  • Newcomers
  • Enter online
  • GPS tracking
  • Hilly
  • Park
  • Rural
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 18 & over
  • 100 miles trail running + 4853 ft ascent

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