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Triathlons in Dorset

Find triathlons in Dorset in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Test every discipline in this unforgettable triathlon set along the South West Coast. Catch sight of the iconic Portland Bill lighthouse as you cycle around the beautiful Isle of Portland.
  • Sun 12 Apr
  • £45
Portland, Dorset, UK

The Osprey Sprint Triathlon

Test every discipline in this unforgettable triathlon set along the South West Coast. Catch sight of the iconic Portland Bill lighthouse as you cycle around the beautiful Isle of Portland.

  • 300 m pool swimming
  • 15 km road cycling + 848 ft ascent
  • 5 km trail running + 24 ft ascent
  • Beginner-friendly
  • Chip timing
  • Enter online
  • Undulating
  • Event village
  • Plastic-free event
  • Age 15-99
Bike past historic landmarks, and run beside the Great Feild at Poundbury. As you finish each leg of the course, you’ll get closer to the crowds of people cheering you on at that final stretch.
  • Sun 24 May
  • £45
Dorchester, Dorset, UK

The Dorchester Sprint Triathlon

Bike past historic landmarks, and run beside the Great Feild at Poundbury. As you finish each leg of the course, you’ll get closer to the crowds of people cheering you on at that final stretch.

  • 300 m pool swimming
  • 21 km road cycling + 792 ft ascent
  • 5 km road running + 147 ft ascent
  • Beginner-friendly
  • Enter online
  • Undulating
  • Event village
  • Plastic-free event
  • Age 16 & over
Whichever distance you choose, this triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.
  • Sun 14 Jun
  • £80-£195
Weymouth, Dorset, UK

Weymouth WMD Triathlon

Whichever distance you choose, this triathlon will not fail to impress. With stunning views of Weymouth nature reserve and a true test of stamina, you'll be beaming with pride at the finish line.

  • Half Ironman
  • Olympic triathlon
  • Sprint triathlon
  • Beginner-friendly
  • Event village
  • Coast
  • Age 18 & over

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