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Triathlons in Berkshire in September 2026

Find triathlons in Berkshire in September 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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The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.
  • Sun 20 Sep
  • £30-£97
Windsor, Buckinghamshire, UK

Eton Dorney Triathlon & Swims

The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake for all levels of triathletes and swimmers to enjoy in an exclusive setting.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Lake swim 4
  • Families
  • Recycling
  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Urban
  • Park
  • Rural
  • Free venue entry
  • Age 15 & over
Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.
  • Sat 26 Sep
  • £58-£120
Windsor, Buckinghamshire, UK

Dorney Triathlon | September

Take on this multi-activity event as an individual or as a relay, and enjoy the opportunity to race around the unique and inspiring Olympic venue! Great water quality and flat, scenic grounds.

  • Super sprint triathlon
  • Sprint triathlon
  • Olympic triathlon
  • Sprint aquabike
  • Standard aquabike
  • Recycling
  • Beginner-friendly
  • Event village
  • Sustainability policy
  • Public transport links
  • Age 15 & over

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