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100K ultra runs in UK in July 2025

Find 100k ultra runs near me in UK in July 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.
  • Sat 12 Jul 2025
  • 3 charities
  • Sat 12 Jul 2025
  • 3 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days with camping charity places

Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.
  • Sat 12 Jul 2025
  • 3 charities
  • Sat 12 Jul 2025
  • 3 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Non-stop charity places

Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Yr Wyddfa (Snowdon) is the highest mountain in England and Wales. Your challenge is to ascend and descend as many times as possible in 24 hours - solo or as a relay team.
  • Sat 12 - Sun 13 Jul 2025
  • £121.99-£251.99
  • Sat 12 - Sun 13 Jul 2025
  • £121.99-£251.99
Caernarfon, Gwynedd, UK

Black Diamond Yr Wyddfa Snowdon24

Yr Wyddfa (Snowdon) is the highest mountain in England and Wales. Your challenge is to ascend and descend as many times as possible in 24 hours - solo or as a relay team.

  • Chip timing
  • Enter online
  • Mountainous
  • Relay
  • Age 18 & over
  • 24 hrs trail running
  • Sat 12 Jul 2025
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days no camping

  • 100 km trail running + 3704 ft ascent

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