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Race in the home to some of Team GB's greatest Olympic achievements in this Triathlon event. Ideal for those new to triathlons and for veterans of the sport alike, come to soak in the great atmosphere or for that prized finisher's medal.
C-19 Plan
The Race Organiser has confirmed that this event will be going ahead as planned on Saturday 31st Jul 2021 in accordance with the COVID-19 safety measures. Learn more

How to enter the Dorney Lake Triathlon

  1. Standard Duathlon

    Triathlon: Swim 1.5km, Bike 40km, Run 10km
    £71–£75
    Book Now
  2. Sprint Duathlon

    Triathlon: Swim 0.75km, Bike 20km, Run 5km
    £61–£66
    Book Now
  3. Super Sprint Duathlon

    Triathlon: Swim 0.4km, Bike 10km, Run 2.5km
    £51–£55
    Book Now

Dorney Lake Triathlon routes

This mixed-distance event is set at the iconic Dorney Lake, just outside of Windsor. The course runs right along the water's edge and loops around the circumference of this iconic Olympic venue.

Given the completely flat nature of the course, this is the perfect opportunity to smash your PB after a long summer of training. Take inspiration from Team GB's London 2012 Olympic success and sign up for this well-organised and spirited event.

The course will be well marshalled and clearly distance marked throughout, with a number of refreshment stations to keep hydrated.

Race distances are listed below:

Standard: 1.5k Swim, 40k Bike, 10k Run
Sprint: 0.75k Swim, 20k Bike, 5k Run
Super Sprint: 0.4k Swim, 10k Bike, 2.5k Run

Event Details

What’s Included
  • Chip-timed event
  • Finisher's Medal
  • Race photography
  • Marshalled course
  • Live results
  • First aid
  • Distance markers
  • Prizes for 1st, 2nd, 3rd of men and women
  • Prizes for winners of Veteran categories (V40, V50, V60, V70)
Raceday Logistics

Schedule

08:00 Enquiries Open

08:30 Standard Duathlon start

08:50 Sprint Duathlon start

09:10 Super Sprint Duathlon start

13:30 Finish

Participants will be set off individually at approximately 15 second intervals to ensure sufficient distance between runners. Your 15-30 minute start wave will be communicated to you before the event.

Spectators

In order to keep staff and participants as safe as possible, spectators will not be permitted at the event.

Frequently Asked Questions

Will there be changing rooms or showers at the event?
No, no changing or shower facilities will be available.
Is there somewhere I can leave my bag while I race?
No, there will be no bag drop available. Please arrive ready to run.
Does the Dorney Lake Triathlon event have a time-limit?
While there is no strict time limit, the organiser will start to deconstruct the registration/finish area at approximately 1:30pm. Participants must complete their race by this time.
Can I wear headphones to run?
Headphones/earphones are prohibited at this event.
Can I enter on the day?
There will be no entry on the day.

Meet the organiser

The Race Organiser creates outstanding opportunities for people to bring out their best run, swim or cycle performance. We seek out the most inspiring and rewarding locations, develop race routes and event formats, and create a brilliant atmosphere and race day experience – offered at the best possible value. We don’t think it’s ok to ask people who are aspiring to do amazing things to pay huge sums of money, so we charge as little as we can afford, rather than as much as we can get away with.

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Tickets £51–£75

Book Now
  • Official booking partner
  • Best price guarantee
  • Free injury protection

Have a question? See our Help Center


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