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Duathlons in UK in July 2026

Find duathlons in UK in July 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.
  • Sat 18 - Sun 19 Jul 2026
  • £28-£245
  • 20% off
Grantham, Leicestershire, UK

Belvoir Castle Triathlon and Multisport Festival

A jewel in the castle crown! Get active in the beautiful grounds and surrounding area of stunning Leicestershire in the discipline of your choice! Celebrate in the festival village afterwards.

20% off

  • Families
  • Newcomers
  • Event village
  • Rural
  • Age 9 & over
  • Kids triathlon 4
  • Super sprint triathlon
  • Sprint triathlon 2
  • Olympic triathlon
  • Half Ironman
  • + 14 more races
  • Sun 12 Jul 2026
Eastbourne, East Sussex, UK

Eastbourne Triathlon and Multisport Festival

  • Super sprint triathlon
  • Kids triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sea swim 2
  • + 2 more races

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Train slow

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