Run Dorney Lake: Half Marathon, 10k, 5k - November

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Speed along the banks of Lake Dorney, home to some of Team GB's greatest Olympic achievements. Ideal for those new to distance-running and for veterans of the sport alike, the route will weave around the waters edge. Come to soak in the great atmosphere or for that prized finisher's medal.
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The event experience

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<5m elevation gain per km

Where and when
Dorney Lake, Dorney Lake, Windsor SL4, UK
Start times
Sun, 7 Nov 2021
Half Marathon:
9:00am |
9:00am |
Races summary
Here's what races are available for Run Dorney Lake: Half Marathon, 10k, 5k - November
1 Loop
2 Loops
Half Marathon
4 Loops
Route information
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.
Details of individual races can be found below:
  • Half Marathon - 4 laps
  • 10k - 2 laps
  • 5k - 1 lap
Organizer route images
What's included
  • Chip-timed results
  • Finisher's Medal
  • Race photography
  • Marshalled course
  • Distance markers
  • Refreshment (available for purchase)
  • Prizes for 1st, 2nd, 3rd of men and women
  • Prizes for winners of Veteran categories (V40, V50, V60, V70)
  • Post-race snacks and refreshments
How to get there
Dorney Lake, Dorney Lake, Windsor SL4, UK
Get full directionsExternalLink
There is parking available at Event HQ (Eton College Rowing Centre, Dorney Lake, off Court Lane, Dorney, Windsor, SL4 6FJ).
By Train
Taplow is the closest train station to Event HQ, located 2 miles away. Runners coming by train could jog from the station to Event HQ, using this distance as a warm up for the event.
Alternatively, participants could ride the number 15 bus (towards Slough Town Centre) from Bishops Centre, riding 2 stops, alighting at The Palmer Arms.
Event day logistics
08:00 Enquiries Open
09:00 All races start
12:30 Finish
Race Packs
Race packs will be available for collection at the event.
The Race Organiser's logo
The Race Organiser
With an inventory of over 150 events each year, the Race Organiser is one of the most prominent event organisers in the country. Whether it’s running, cycling, or swimming events, TRO have succeeded in creating a community of all abilities, who come together time-and-time again to enjoy their shared passion. Their events are widely renowned for exceptional organisation and great marshals who will ensure that you have a truly amazing experience come race day.
View more The Race Organiser eventsExternalLink
Spectator Info
In order to keep staff and participants as safe as possible, spectators will not be permitted at the event.
Can I wear headphones during any of the Run Dorney Lake runs?
Noise-cancelling Earphones/Headphones are prohibited and the organisers discourage the use of other earphones/headphones at this event, participants choosing to use them should ensure they are set to a minimum volume such that instructions from marshals or other event officials can be clearly understood.
Does the Run Dorney Lake event have a time-limit?
While there is no strict time limit, the organiser will start to deconstruct the registration/finish area at approximately 13:30. Participants must complete their race by this time.
What are the age limits for this the Run Dorney Lake event?
Participants must be 17 years of age to run in the half marathon, 15 years of age for the 10k and 11 for the 5k.
Will there be changing rooms or showers at the Run Dorney Lake event?
No, unfortunately no changing or shower facilities will be available.
5 reviews
Did the Half Marathon in 2021
Great PB venue as it is flat though the course measured 13.51 miles on my watch and those of others who finished around me.
Did the Half Marathon in 2021
got my Half-Mara PB this weekend running around this lovely lake. Great place to run, well organised and good pre and post run facilities.
Did the Half Marathon in 2021
Water bottles at 3k, 9k, 14k and 19k are great. Parking is convenient and it's very flat. The only downside is that I've done 3 half marathons on this course in 2021 and all have been quite different distances - 20.8, 21.3 and now 21.8k. I now watches are not 100% accurate, but that doesn't explain those sorts of differences.
Did the 10k in 2021
Well organized, flat course, good for PBs! The marshalls were friendly and cheered you on and the views of the lake were beautiful
Did the 10k in 2021
Apart from the parking supervisor shouting at everyone, all staff/volunteers were lovely and helpful. Great course for a slow beginning like me. Brilliant morning 🙂
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Recent Questions
Becky Head
Are there water stations for the half marathon?
Andrew Robbins
Do you have to wear a wetsuit for the sprint swim?
Stephy Dennis
Hey there, just to let you know that it is not mandatory to wear a wetsuit, but it is highly recommended. All the best!

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