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Olympic triathlons (standard distance) in South East in September 2026

Find olympic triathlons (standard distance) in South East 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 Standard-distance triathletes to enjoy in an exclusive setting.
  • Sun 20 Sep 2026
  • £82-£97
Windsor, Buckinghamshire, UK

Eton Dorney Standard Triathlon

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

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 1.5 km lake swimming
  • 40 km road cycling + 80 m ascent
  • 10 km trail running + 14 m ascent

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