Run Dorney Lake Marathon, Half Marathon, 10k & 5k September 2026
Sat, Sep 26, 2026
Lake End Rd & Court Ln, Dorney
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Run Dorney Lake Marathon, Half Marathon, 10k & 5k September 2026
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Booked 1 time in the last week
Booked 1 time in the last week
About
There are worse ways to spend a Saturday in September than by a lake! Enjoy a late summer spin around Dorney Lake at this 5k, 10k or Half Marathon event from RunThrough. Speed around the fast and flat course and pick up your bespoke finisher's medal.
5k, 10k, Half Marathon, and 2 more
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Sat, Sep 26, 2026
View logistics
Dorney, United Kingdom
View location
4.6(Reviews)
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Where and when
Location
Lake End Rd & Court Ln, Dorney, Windsor SL4 6QL, UK
Start times
Saturday, Sep 26, 2026
5k: 9:10 AM10k: 9:10 AMHalf Marathon: 9:10 AMMarathon: 9:10 AM
Event summary
Here are the distances available for Run Dorney Lake Marathon, Half Marathon, 10k & 5k September 2026
5k
5km
1 Loop
£28
10k
10km
2 Loops
£30
Half Marathon
21km
4 Loops
£34
RunThrough Foundation
£80
5k
5km
1 Loop
£28
10k
10km
2 Loops
£30
Half Marathon
21km
4 Loops
£34
RunThrough Foundation
£80
Route information
The course is fast and flat, so feel like an Olympian as you race under the shadows of the Olympic rings.
The course will be run on roads and paths and each loop is roughly 5k, participants will run a varying amount of laps of the lake depending on their distance.
Course Details & Maps
Marathon
Elevation - 54m | Laps - 8 + U-turn each lap | Terrain - Road
Elevation - 27m | Laps - 4 + U-turn each lap | Terrain - Road
Elevation - 15m | Laps - 2 | Terrain - Road
Elevation - 8m | Lap - 1 | Terrain - Road
Organizer route images
What's included
- Finisher's Medal
- Chip-timed results
- Marshalled course
- Refreshment station
- Aid station
- Bag drop
- Free race photos
How to get there
Lake End Rd & Court Ln, Dorney, Windsor SL4 6QL, UK
Get full directionsPARKING/TRAVEL
Free parking is available at Dorney Lake and will be signposted as you enter the venue. Please bear in mind there could be up to a 20-minute walk to registration depending upon which car park you find yourself in so we advise you to leave plenty of time for arrival.
Nearest Train stations: Slough and Windsor & Eton Riverside
Event day logistics
09:10 am - All races start
01:10 pm - Race End
We have a 4 hour cut in place for our Marathon distance
CUT-OFF TIME
No, everyone is welcome, however please get in contact with us at info@runthrough.co.uk if you plan to take more than 3hrs to complete your race as we may need to make special arrangements around the course and event village.
MINIMUM AGES
Half Marathon - 17 years and above
10k - 15 years and above
5k - 11 years and above
BAGGAGE
We will have a secure marquee where you can leave your baggage. We recommend you bring as little baggage as possible. Your baggage tag is attached to your race number, you simply tear it off and attach it to your bag. To collect, show your number to our staff and they will help you find your baggage.
TOILETS
There will be portaloos available in the event village next to the boathouse. The toilets are a short distance from the transition area.
REFRESHMENTS
There will be a water station available on each lap of the 5k course (at around the 2.5km mark). There will also be a bottle of water waiting for you at the finish line. We recommend bringing your own water with you to stay hydrated in the lead up to the event and running with a hydration where possible.
RESULTS
Results will be available here immediately after the race.
PICTURES
We will have an official photographer at the event, please check out our photos page after the race.
SOCIAL MEDIA
RunThrough South / Dorney Triathlon
To stay up to date with everything from RunThrough, make sure to follow us on all our social media pages and if you would like to hear more from us via email make sure to sign up to our newsletter via the RunThrough.co.uk homepage.
Make sure to tag us in any pictures or videos that you post and the best ones will be featured on our pages!
CONTACT EMAIL ADDRESS
FAQs
Where can I find the event photos of the Run Dorney 5k, 10k & Half Marathon - September?
Event photos will be uploaded to RunThrough's photo page on their website after the event.
Will there be a water station on the route at the Run Dorney 5k, 10k & Half Marathon - September?
Yes, there will be a water station at the lapped point of the route.
Will there be parking at the Run Dorney 5k, 10k & Half Marathon - September?
Yes, there is plenty of free parking available on-site.
Reviews
4.6
42 reviews
Smiths Building, Lower Ground Floor, 179 Great Portland St,
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Reg number 10083277
