Dorney Triathlon | July
Sun 12 Jul 2026 Windsor, Buckinghamshire, UK

Dorney Triathlon | July

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.

5 races

  • Sun 12 Jul 2026
  • #1 of 5
Dorney Lake, Windsor

Super Sprint

10:00

Age 15 & over

£58

  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
  • Sun 12 Jul 2026
  • #2 of 5
Dorney Lake, Windsor

Sprint

07:30

Age 15 & over

£78-£99

  • 750 m lake swimming
  • 19 km road cycling
  • 5 km road running
  • Sun 12 Jul 2026
  • #3 of 5
Dorney Lake, Windsor

Standard

08:30

Age 17 & over

£99-£120

  • 1500 m lake swimming
  • 38 km road cycling
  • 10 km road running
  • Sun 12 Jul 2026
  • #4 of 5
Dorney Lake, Windsor

Sprint Aquabike

07:45

Age 15 & over

£68

  • 750 m lake swimming
  • 19 km road cycling
  • Sun 12 Jul 2026
  • #5 of 5
Dorney Lake, Windsor

Standard Aquabike

08:45

Age 17 & over

£89

  • 1500 m lake swimming
  • 38 km road cycling

Event overview

Take on a multi-activity event at this iconic Olympic venue, featuring clear water, flat scenic grounds and a supportive atmosphere ideal for personal bests or first-timers.

Highlights

  • Fast, flat course with clear-lake swim and scenic bike and run routes
  • Perfect for both experienced triathletes and beginners
  • Chip-timed racing for accurate results
  • Supportive marshals and volunteers throughout the course
  • Aquabike (swim-bike) option for those not running
  • Relay option for teams of two or three participants
  • Draft-illegal race to ensure fair competition
  • Set within the inspiring Dorney Lake Olympic venue

  • Average fitness
  • Event village
  • Newcomers
  • Teams

Ability

This event is open to everyone, regardless of ability.

Wetsuit hire

Zone3 wetsuits are available to hire for the day or for the season.

  • Free parking

Event HQ

Dorney Lake
Off Court Lane, Lake End Road
Windsor
Buckinghamshire
SL4 6FJ
UK

  • Public transport links
  • Recycling
  • Sustainability policy

Here are the ways this event cares for the environment:

Summary

  • Recycling bins
  • Recycling gets separated from general waste
  • Finish line water bottles made from recycled material
  • Refill taps are provided so participants can bring their own bottle and fill up during the event
  • The choice of paper cups at water stations
  • Signage including course marking attached with reusable garden wire instead of plastic cable ties
  • 'Dynamic bib assignment’ removes the need for envelopes, sticker labels and excess waste
  • Bike racking is provided to promote cycling to the events

Races at event

  • Sun 12 Jul 2026
  • #1 of 5
Dorney Lake, Windsor
Super Sprint

10:00

Age 15 & over

£58

  • 400 m lake swimming
  • 10 km road cycling
  • 2.5 km road running
  • Sun 12 Jul 2026
  • #2 of 5
Dorney Lake, Windsor
Sprint

07:30

Age 15 & over

£78-£99

  • 750 m lake swimming
  • 19 km road cycling
  • 5 km road running
  • Sun 12 Jul 2026
  • #3 of 5
Dorney Lake, Windsor
Standard

08:30

Age 17 & over

£99-£120

  • 1500 m lake swimming
  • 38 km road cycling
  • 10 km road running
  • Sun 12 Jul 2026
  • #4 of 5
Dorney Lake, Windsor
Sprint Aquabike

07:45

Age 15 & over

£68

  • 750 m lake swimming
  • 19 km road cycling
  • Sun 12 Jul 2026
  • #5 of 5
Dorney Lake, Windsor
Standard Aquabike

08:45

Age 17 & over

£89

  • 1500 m lake swimming
  • 38 km road cycling

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4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.