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100K ultra runs in Cirencester

Find 100k ultra runs near me in Cirencester for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission, with stops every 12-13km and a halfway break in Wotton, you're fully supported.
  • Sat 21 - Sun 22 Jun
  • £199
  • 15 charities
  • Sat 21 - Sun 22 Jun
  • £199
  • 15 charities
Cirencester, Gloucestershire, UK

Cotswold Way Ultra Challenge | Full 100km continuous

Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission, with stops every 12-13km and a halfway break in Wotton, you're fully supported.

  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • 100 km trail running + 2250 m ascent
Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission in daylight only with the benefit of a mid-way break and good night's sleep.
  • Sat 21 - Sun 22 Jun
  • £199
  • 15 charities
  • Sat 21 - Sun 22 Jun
  • £199
  • 15 charities
Cirencester, Gloucestershire, UK

Cotswold Way Ultra Challenge | Full 100km over 2 days

Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission in daylight only with the benefit of a mid-way break and good night's sleep.

  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • 100 km trail running + 2250 m ascent

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