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Dorney Lake Christmas Duathlon & Lake Runs

Booked 1 times in the last week
£20.00 - £60.00Free injury protection
Event summary

Start the festive period off right with one of these fantastic endurance events. Great for beginners and experienced athletes alike, the courses loop around Dorney Lake, home to the 2012 Olympic rowing events. Come for the stunning scenery or for the physical challenge.

Your organiser

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.

We’re always looking for volunteers to help make these events epic.
Find out more

How to enter

Tickets available until Fri Dec 10 2021

What's included:

  • Finisher's medals
  • Chip timed event
  • Refreshment stations
  • Aid stations
  • Marshalled course
  • Prizes for 1st, 2nd, 3rd overall Male and Female, 1st Vet (40+) Male and Female.
  • Free car parking
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Booked 1 times in the last week
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Frequently asked questions
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.… read more
What will I receive in my race pack for the duathlon events?
Duathlon competitors will receive their bib number to be worn on the front when you are running and back when you are biking, your bike number to be stuck on your bike seat post, your helmet number to be stuck on the front of your helmet, and your timing chip which is supplied with a Velcro band to secure to your ankle.… read more
How do I receive my race number?
Race numbers should be collected on the day as well as your timing chip.… read more
Route description
Route description

Run Routes

This is one of the flattest courses in the UK and perfect for those looking to get a PB.

The course is a 5km lap around the iconic Dorney Lake. Runners will get to feel like an Olympian as they pass over the Olympic Rings near the finish line.

  • Half Marathon: 4.5 laps
  • 15k: 3 laps
  • 10k: 2 laps
  • 5k: 1 lap

Duathlon Routes

First Run Course

  • The run will start next to the Main Registration Marquee and will be an out and back course measuring 2.5km.
  • The Super Sprint Duathlon run will be 1 out and back lap, the Sprint Duathlon run will be 2 out and back laps and the Standard Duathlon run will be 4 out and back laps.
  • Once completed, competitors will proceed into the RUN IN entrance of the transition area.

Bike Course

  • The course consists of approx. 5km laps up and down the side of the famous lake.
  • Super Sprint Duathlon will complete 2 laps, the Sprint Duathlon will complete 4 laps and the Standard Duathlon will complete 8 laps.
  • Please note that it is the competitors responsibility to count the number of laps they have ridden.

Final Run Course

  • The final run course is once again an out and back loop equal to 2.5km.
  • The Super Sprint distance will be 1 lap and the Sprint & the Standard distances will be 2 laps.
Logistics and schedule


07:00 Enquiries open

08:00 Standard Duathlon start

08:25 Sprint Duathlon start

08:45 Super Sprint Duathlon start

11:00 Half Marathon start

11:30 15k start

11:45 10k start

12:15 5k start

Event Registration is located by the Main Marquee as you enter the lake on the right hand side.

*Please arrive 60 minutes before the start of your race in order to complete the registration process.


Spectators will not be permitted at this event to help keep participants and staff as safe as possible.

How to get there

Dorney Lake, Dorney Lake, Windsor SL4, UK

Get directionsExternalLink

Address: Eton College, Rowing Centre, Dorney Lake, Windsor, SL4 6QP

There will be plenty of free onsite parking available.

Frequently asked questions
Booking related questionsDo you have a question about bookings, cancellations, or refunds?

Interested in volunteering at this event?

Organisers are always looking for an extra pair of hands and there are plenty of roles to fill!

Complete this short form and the organiser will be in touch.

By submitting, you’re accepting that we’ll pass your details onto the event organiser. We won’t pass your details onto anyone else.

£20.00 - £60.00Free injury protection

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