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Dorney Lake Triathlon

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Tickets £60–£75

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Find your inner Olympian and take on this triathlon at the iconic Dorney Lake. Great for triathletes of all levels, the course makes full use of the 2012 Olympic rowing and canoeing venue. Come for the bespoke finisher's medal or for the physical challenge.

How to enter the Dorney Lake Triathlon

  1. Beginners

    Triathlon: Swim 400km, Bike 10.6km, Run 2.5km
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  2. Sprint

    Triathlon: Swim 750km, Bike 21.2km, Run 5km
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  3. Olympic

    Triathlon: Swim 1500km, Bike 42.4km, Run 10km
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Dorney Lake Triathlon routes

The swim takes places in the lake itself. The distances are as follows:

  • Beginners: 400m
  • Sprint 750m
  • Olympic 1500m

The bike course loops around the lake on tarmac paths and closed roads. The course offers stunning views of the venue as well as the surrounding areas. The distances are:

  • Beginners: 10.6km
  • Sprint: 21.2km
  • Olympic 42.4km

As with the bike course, the run loops around the lake. Runners will be able to fully appreciate not only the beauty of the venue, but its iconic history thanks to the Olympic Rings on show. The distances are:

  • Beginners: 2.5km
  • Sprint: 5km
  • Olympic: 10km

Event Details

What’s Included
  • Marshalled Course
  • Chip timed event
  • Finisher's medal
  • Refreshment stations
  • Aid stations
  • Secure bag drop
  • Onsite car park with free parking
  • Live to web results
Raceday Logistics

The provisional start times are as follows:

Olympic Female: 09:00
Olympic Male: 09:15
Sprint Female: 09:45
Sprint Male: 10:00
Beginner Female: 10:30
Beginner Male: 10:45

Please note that registration will take place on the morning of the event. Please arrive at at least 45-60 minutes before your start time in order to complete the registration process and rack your bike.

Kit List
  • Bike (in good working order)
  • Wetsuit
  • Helmet

This is a great event for spectators. Not only is Dorney Lake one of the most recognisable venues from the London 2012 Olympic games, but the looped structure of the course means spectators should get a good view of competitors.

There are catering facilities available onsite in case you are feeling hungry.


The volunteers are what make this event special. If you would like to join this superb team of people, please email [email protected]

In return F3 events will offer you:

  • Free entries for yourself or a family member
  • Free food and drink provided at the event
  • Event clothing

How do I receive my race number?

Race numbers should be collected on the day as well as your timing chip.

Where can I find my results?

The results will be posted on F3 events website directly after the race. You will also receive a results email which will be sent to your email address after the event.

Is there an age limit?

Competitors will need to be 17 years old on the day of the event

Do I have to wear a wetsuit?

Wetsuits are encouraged. Not only will it keep you warm but it will also help you swim faster. It is compulsory to wear a wetsuit if the water temperature is less than 14 degrees celsius.

Dorney Lake Triathlon weather forecast

Drizzle throughout the day.

Predicted highs
Predicted lows
IconHigh chance of rain
IconLight breeze possible, up to 7mph

Meet the organizer

Offering fun, friendly, family, fast and focused events across the South. F3 Events was set up in 2006 and has been one of the leading sporting event organisers along the Thames Valley for the past 10 years. Our mission is to organise, deliver and provide first class sporting events along the Thames Valley to aspiring athletes from complete beginners to elites athletes.

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