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Relay triathlons in Dorset in September 2025

Find relay triathlons near me in Dorset in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Situated off the World Heritage Site Jurassic Coast, this race is a first-timer favourite, featuring sandy beaches, spectacular coastline and the stunning Dorset countryside.
  • Sun 14 Sep
  • Sun 14 Sep
Weymouth, Dorset, UK

IRONMAN 70.3 Weymouth

Situated off the World Heritage Site Jurassic Coast, this race is a first-timer favourite, featuring sandy beaches, spectacular coastline and the stunning Dorset countryside.

  • Enter online
  • Flat
  • Traffic free
  • Event village
  • Coast
  • Age 18 & over
  • 1.2 miles sea swimming
  • 56 miles road cycling
  • 13.1 miles road running

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