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Half Ironman (middle distance) in South East in July 2025

Find half ironman (middle distance) near me in South East 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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Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.
  • Sat 19 Jul
  • £265-£295
  • Sat 19 Jul
  • £265-£295
Windsor, Buckinghamshire, UK

Castle To Coast Triathlon

Swim, bike, run your way from Windsor Castle to Brighton on this unique, non-competitive, point-to-point adventure through the North & South Downs. Fully way-marked (no navigation) and full support.

  • Newcomers
  • Chip timing
  • Enter online
  • Event village
  • Rural
  • Age 18 & over
  • 1.2 miles lake swimming
  • 67 miles road cycling + 3550 ft ascent
  • 14 miles trail running + 1512 ft ascent
Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.
  • Sun 20 Jul
  • Sun 20 Jul
Eastbourne, East Sussex, UK

TriBourne Festival of Endurance | Middle Distance Triathlon

Award winning full and middle-distance triathlons, plus a marathon, long-distance swims, aquabike options and triathlon relays.

  • Enter online
  • Age 18 & over
  • 1.2 miles sea swimming
  • 56 miles road cycling
  • 13.1 miles trail running

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