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Marathons in Dorset

Find marathons near me in Dorset for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Taking place from the iconic Weymouth and Portland National Sailing Academy, all abilities can take part in this festival of running in what is possibly the most stunning of coastal trail locations.
  • Sun 8 Feb 2026
  • £42-£44
  • Sun 8 Feb 2026
  • £42-£44
Portland, Dorset, UK

Portland Coastal Marathon

Taking place from the iconic Weymouth and Portland National Sailing Academy, all abilities can take part in this festival of running in what is possibly the most stunning of coastal trail locations.

  • Chip timing
  • Enter online
  • Undulating
  • Age 18 & over
  • 26.2 miles trail running + 2356 ft ascent
  • Sat 6 Dec
Swanage, Dorset, UK

EnduranceLife - Dorset | Marathon

  • 27 miles trail running + 4692 ft ascent

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