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Windsor & Eton Spring Duathlon & Lake Runs

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Event summary

Run into spring with this fast, flat and friendly event. Great for athletes of all abilities, the course is a loop of the iconic Dorney Lake, host of the 2012 Olympic rowing events. Come for the awe-inspiring scenery or the bespoke medal.

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.

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We’re always looking for volunteers to help make these events epic.
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How to enter

Tickets available until Tue Feb 23 2021

What's included:

  • Finisher's medals
  • Chip timed event
  • Secure baggage area
  • 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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What people think
14 reviews
Frequently asked questions
How do I receive my race number?
Race numbers should be collected on the day as well as your timing chip. … read more
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
Is there parking on-site?
There will be ample parking available for both competitors and spectators.… read more
Running Events in the United Kingdom
Running Events in the United Kingdom
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Running Events in London Parks
Route description
Route description

Run Course:

The course starts and ends at the impressive boathouse overlooking the lake.

Runners will set out on a pan flat 5km loop around the iconic lake. The terrain is a mixture of tarmac paths and closed, traffic free roads.

The 5km run will be 1 lap, the 10km run will be 2 Laps, the 15km run will be 3 laps and the half marathon will be 4.5 laps.

When you finish your race, competitors are required to proceed into the finish line funnel to collect your finishers medal.

As one of the flattest courses in the UK, this is a great chance to record a PB.


These races are ideal for those looking to take part in their first duathlon event and Dorney Lake is the perfect venue.

There are three options to choose from:

Super Sprint Duathlon: 2.5KM Run, 10KM Cycle, 2.5KM Run
Sprint Duathlon: 5KM Run, 20KM Cycle, 5KM Run
Standard Duathlon: 10KM Run, 40KM Cycle, 5KM run

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Logistics and schedule


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 StartRegistration will take place by the main boathouse at the far end of the lake.

Please arrive at least 45 minutes before the start of the race in order to collect your race number and timing chip.


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

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Address: Eton College Rowing Centre, off Court Lane, Dorney, WINDSOR. SL4 6FJ

There will be plenty of free onsite parking available.

Frequently asked questions
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