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Take part in a fantastic event at one of the most iconic Olympic venues. Great for athletes of all abilities, the flat courses offer superb views of the rowing lakes. Come for the physical challenge or for the unique medal.
C-19 Plan
F3 Events has confirmed that this event will be going ahead as planned on Friday 3rd Sep 2021 in accordance with the COVID-19 safety measures. Learn more

Review summary

8 Reviews
  • Course
  • Organisation
  • Atmosphere


Steph E
"If it is very sunny, remember your suncream and sunglasses as there is no shade..."


Charlie M
"Really enjoyed my first duathlon. Perfect weather and greatly equipped venue...."


Gemma D
"This was poorly organised no direction of what was going on. Say it was time..."
See all reviews

How to enter the Dorney Lake

  1. Half Marathon

    Run 13.1mi
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  2. 10k

    Run 10km
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  3. 5k

    Run 5km
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  4. 15k

    Run 15km
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  5. 25k

    Run 25km
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  6. 30k

    Run 30km
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  7. 35k

    Run 35km
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Dorney Lake routes

Set at the spectacular, flat Dorney Lake near Windsor, this event takes you around the perimeter of this iconic water.

The legendary Eton Dorney, as Dorney Lake was called by London 2012, held 30 events throughout the Olympics, with Team GB taking a total of 12 medals. Soak up the atmosphere and invoke their heroics to inspire you to a new PB!

The Dorney Lake course is nestled amongst 450 acres of glorious parkland which includes an Arboretum and Nature Conservation area whilst being just a few miles from Windsor and a short drive from Heathrow airport and west London.

The course is laps around the closed road, tarmac lake.

Event Details

What’s Included
  • Finisher's medals
  • Chip timed event
  • Fuel and water stations
  • Marshalled course
  • Prizes for 1st, 2nd, 3rd overall male and female, 1st Vet (40+) Male and Female.
  • Free car parking
  • Raceday Logistics


    07:00 Enquiries open

    08:00 35k start

    08:25 30k start

    08:45 25k start

    11:00 Half Marathon start

    11:30 15k start

    11:45 10k start

    12:15 5k start

    13:30 Event ends

    Participants will start individually at 10-15 second intervals to maintain social distancing with a recommended 15-30 minute arrival window allocated and communicated prior to the event.


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


    To volunteer please email [email protected] and one of the F3 events team will contact you.

    Frequently Asked Questions

    Is there somewhere I can leave my bag while I race?
    There will be no bag drop at this event. Participants should arrive ready to run.
    Is there a cut-off time?
    There is no strict cut-off but participants are asked to have completed their race by no later than 1:30pm.
    When will I receive my race number for the Dorney Lake Run?
    Race numbers should be collected on the day alongside your timing chip.
    Where can I find my results for the Dorney Lake Runs?
    Results for the Dorney Lake Run will be posted on the F3 events website directly after the race, as well as an email with results.

    Dorney Lake weather forecast

    Partly cloudy throughout the day.

    Predicted highs
    Predicted lows
    IconLight breeze possible, up to 8mph

    Meet the organiser

    Are you the organizer? Claim this page

    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.



    Dorney Lake reviews (8)

    3.7 out of 5 stars

    • Course
    • Organisation
    • Atmosphere
    • G

      Gemma D

      Did the Half Marathon in 2019

      This was poorly organised no direction of what was going on. Say it was time chipped find that hard to believe as there was no chip monitor at start line or around the course for spilts. Atmosphere on the course was pretty poor. Wouldn’t do it again.
    • D


      Did the event in 2019

      Was ok... the running course was quite boring , could be better ... wasn’t many people to. Cheer you up
    • D

      Damien M

      Did the event in 2019

      Whilst the course was flat, it was monotonous due to the short repetitive laps. There were very few participants and very few spectators, resulting in a lack of atmosphere.
      The event was poorly organised, with very little actually set up in time for competitors arrival. For example, when we arrive (after the stated arrival time), we were sent around in a circle and back to the entrance instead of being directed to the car park (because the marshalls had forgotten to remove/change signage). When I pointed this out to the marshall directing parking traffic, I received an aggressive response.
      Finally, the goody bag was seriously lacking.
      Note I have participated in literally hundreds of events and this has to be the worst I've done, largely due to the organisation.
    • Did the event in 2018

      An extremely well organised event with a beautiful course. The weather couldn't have been better. First class and look forward to next year.
    • Did the event in 2018

      This was the best Saturday of October! I attended this race with friends and it was my second 10k that I have taken part in. The setting was just perfect. The atmosphere was joyful and the race organisers and marshals were friendly and helpful. This location is a new favoured race spot for me and so I will be back for more very soon!
    • Did the event in 2018

      Really enjoyed my first duathlon. Perfect weather and greatly equipped venue.
    • Did the event in 2018

      If it is very sunny, remember your suncream and sunglasses as there is no shade at all on this course.
    • Did the event in 2018

      Very good event. Well organised. My first run for 11 years and I couldn't have picked a better one. See you next year
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    Tickets £18–£35

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