Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September

Name: Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September
Brand: Dorney Lake Events
Rating: 4.366666666666666 (30 reviews)

4.4 · 30 reviews

From Dorney Lake Events

Date Sat 26th September 2026
Time 09:10
Location Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
Price £29.68 - £42.40
Races 4 races
Distances 5km, 10km, Half Marathon, Marathon

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A group of runners participate in a race along a paved outdoor path, with trees and grass on both sides. The focus is on a woman in black sportswear and sunglasses, smiling as she runs.

Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September

Sat 26th September 2026

4.4 · 30 reviews

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Event summary

Get ready to lace up your running shoes for the Run Dorney Lake Marathon, Half Marathon, 10k & 5k on Saturday, September 26, 2026! Organized by Dorney Lake Events, this exciting race day promises an unforgettable experience set against the stunning backdrop of Dorney Lake in Windsor, Berkshire. Known for hosting the London 2012 Olympic rowing events, this picturesque venue offers a flat, chip-timed course that’s perfect for runners looking to achieve personal bests.

Participants can choose from a variety of distances, including the Half Marathon, 10k, and 5k, with all races kicking off at 9:10 am. Whether you're aiming to conquer the half marathon with its four laps and a modest elevation of 27m, or sprint through the scenic 5k route with just one lap, this event caters to all abilities. Join us for a day filled with camaraderie, competition, and a vibrant atmosphere as you take on the challenge at this beautiful lakeside location. Don’t miss out on this fantastic opportunity to run at Dorney Lake!

Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September

Sat 26th September 2026

Several athletes run outdoors in a triathlon event on a sunny day, each wearing race bibs and sporting athletic gear. Spectators can be seen in the background along the race route.

A group of runners, both men and women, compete in a race along a paved path outdoors, with some smiling and wearing numbered bibs. Greenery and more runners are visible in the background.

Two runners, a woman in blue and a man in light gray, smile as they run on a paved road near water during a race. Other participants follow behind them under a cloudy sky.

Organiser's Description

Join us for the Run Dorney Lake Half Marathon, 10k & 5k on Saturday 26th September 2026

Join us for a 5k, 10k or Half Marathon distance at the home of London 2012′s Olympic rowing events. Dorney Lake is situated near the village of Dorney in Buckinghamshire, is a purpose-built rowing lake with grounds that are a perfect backdrop to running as well as rowing. The flat course is ideal for a chip-timed personal best over the 5k or 10k distance.

Race Distance & Start Times:

09:10 am - All Distances

Half Marathon
Elevation - 27m | Laps - 4 + U-turn each lap | Terrain - Road

10k
Elevation - 15m | Laps - 2 | Terrain - Road

5k
Elevation - 8m | Lap - 1 | Terrain - Road

Race End:

We have a 4 hour cut in place for our marathon distance.

Races

10 Km

Sat 26th September 2026 (09:10)

£31.80

Booking for more than 1?
5 Km

Sat 26th September 2026 (09:10)

£29.68

Booking for more than 1?
Half Marathon

Sat 26th September 2026 (09:10)

£36.04

Booking for more than 1?
Marathon - 4 Hour Cut Off

Sat 26th September 2026 (09:10)

£42.40

Booking for more than 1?

Book

10 Km

Sat 26th September 2026 (09:10)

£31.80

Booking for more than 1?
5 Km

Sat 26th September 2026 (09:10)

£29.68

Booking for more than 1?
Half Marathon

Sat 26th September 2026 (09:10)

£36.04

Booking for more than 1?
Marathon - 4 Hour Cut Off

Sat 26th September 2026 (09:10)

£42.40

Booking for more than 1?

Event Video

Reviews

4.4

30 reviews

Emily

·4 months ago

Well organised and nice location. Doing laps wasn’t that fun but that’s just personal preference and I knew I would have to do laps beforehand.

Paul

·4 months ago

All excellent… course, location, parking, information, staff…. The flat course runs on wide tarmac paths by the rowing lake. I was delighted with the time I achieved. Great support from staff before during and after the event.

Olaus

·4 months ago

Fantastic flat course - perfect for PBs! Beautiful, iconic setting. Brilliantly organised from pre-start to post-finish. Recommended!

Sarah

·6 months ago

Straight forward information, easy parking, easy registration and knowing what was happening. Highly recommend. Nice flat run

Jean

·8 months ago

I ran the 10k yesterday 27th of September 2026 and I had a great day. It us very well organised and the staff are very friendly. The parking is good and there is a great sporting atmosphere Definetly will go again

Jack

·a year ago

Excellent venue. Friendly and helpful staff. Great facilities. Will definitely be coming back again. The course is easy to navigate, and flat which makes it ideal for chasing a PB.

Richard

·a year ago

Friendly, well organised meeting (Duathlons and straight running races). All good. Flat, a bit featureless. 10k was the most chosen event with almost 200 entries. The 5k and Half Marathon also popular.

Lee

·2 years ago

This was my first ever race (half marathon) so nothing else to compare it to. The facilities were good: parking, toilets and route markers etc. Staff/marshals were friendly and encouraging. It was the same medal for all the races though, which had a festive, somewhat childish design.

Vernon

·2 years ago

Arrived in good time and found parking close to start. Friendly and efficient registration. Clear instructions and a fast and flat we’ll signed and marshalled route. I’ll be back.

Matthew

·2 years ago

Route was a bit boring, but it was doable and the medal was cool for completing the race

Paul

·2 years ago

A well run event

Jack

·3 years ago

Simple enough to register, bit of a walk down to the start. Route itself was quite boring, essentially 4 laps up and down. Would have been better to run round the lake. Water stations at each end. No T-Shirt at the end as advertised and all Medals were the same.

James

·3 years ago

Arrived an hour before the start but the parking was full, cars were dumped all over the place including down the route. The start seemed pretty chaotic as there wasn’t really any clear direction. The run itself was fine, route was nice and flat. I probably won’t go back

Miriam

·3 years ago

Miserable start to the race, was made to park a 30 minute walk from the event village, then had to queue 20 mins for the toilet, just barely made it to the start in time. Once the race got going it was fine, if boring. The view is of an artificial rectangular lake, not surrounded by trees or anything to look at. Will not be running there again.

Jessica

·3 years ago

Great course for a first timer, I did the half marathon and had a great time. The staff are great at encouraging you and everyone is so nice. I did find it a bit frantic at the start as so many events going on at once and up to 600 people plus guests there. The parking seemed to hold everyone up and a lot of people ended up starting later than the time slot. The staff were friendly and accommodated this which was nice as I was getting anxious that I was running late. Toilet queue is huge so get there in good time, bag drop is quick so do not worry about this. Enjoy the running, it's a great course!

Connie

·3 years ago

Good flat course, would highly recommend for a first timer. The weather was windy and rainy but the staff and runners were unaffected. Directions were clear, there was a good range of runners and everyone was friendly. Good atmosphere, would do it again!

Hollie

·3 years ago

The course itself was nice - it's flat and open so you can catch a slight breeze. Just be sure to check your start times - my booking for the 10k said 9:30am but when I got there, it didn't actually start until 11am so there was a lot of hanging around for me!

Keith

·4 years ago

Flat circuit for a swift run. Organisation was fine, but very busy at the start as so many events on at the same time; 5k/10/half/duathalon/triathalon/sprint triathalon. The 10k did not go around the lake, but was loops on one side; I guess because of cycling on the other side. Shame no event T-Shirt included in package.

Tim

·4 years ago

Gusty wind down first side of the lake was hard work, twice for the 10k, but the race was good in improving weather. Flat course so good for fast times. Good organisation, good numbers of participants and range of levels.

Esther

·6 years ago

FLAT. The course is four laps around the man-made Olympic rowing lake so it is flat. Inside and outside toilets. Plenty of free parking. Concrete/ pathway course. Little man under a canopy playing his music half way around.

Kevin

·6 years ago

Great Event. Once again the Run-Through Team have nailed it! Great support throughout as always & each Event just keeps on getting better!

Lauren

·6 years ago

Brilliant first 5k. I have never been a runner but my friend and I decided to do a run to keep fit and I wanted to raise money for my partners mum who has breast cancer. I managed to raise £215! I was very nervous to do the run but after some training and support from family I made it to Dorney Lake. The organisers were very friendly and helpful and I couldnt have asked for more. The overall experience was amazing and would definitely recommend doing this run! There were water and snacks afterwards which helped bring my energy back after my first 5k. I thoroughly enjoyed the day and would do it again!

Bradley

·6 years ago

A GOOD PB COURSE. This was the first time i jad taken part in a run through event. I was a beautiful setting and was very well organised. The only thing is that you need a lot of mental strength for this one as 4 laps really test you, especially the beginning of lap 4 when you look up and all you can see is 2km of lake in front of you. The finish line becomes a thing of imagination. I did find completing it very rewarding and got a new PB of 1:53:33 All in all i would do it again!

Lauryn

·6 years ago

Brilliant for a first half-marathon. This was my first ever half-marathon and I don't think I could have chosen a better run! The route itself was amazing, nice and flat and with great scenery. The staff were super friendly and helpful, and they were a massive part of the overall atmosphere. Great value for money and I would highly recommend!

Charlotte

·6 years ago

Amazing event. My first ever race and I couldn’t have asked for anything more. It was so well organised and managed.

Sue

·7 years ago

Friendly event. Great organisation, lots if free snacks and drinks post race. Great group warm up. Thank you!

Nathalie

·7 years ago

Excellent. Great organisation from registration to the finish line!! Marshals always supportive and smiley alongside the course which adds to the overall feeling! Thanks and well done!

Elsa

·7 years ago

Dorney lake half marathon. Brilliant thanks

Daniel

·7 years ago

Great Event All Round. I ran the Half Marathon and I thought it was a well organised event with a decent pre race warm up and atmosphere all round. Finished with a nice medal and snacks. I have already booked up for the next one.

Avril

·7 years ago

Organised event. The event was organised well however could of had another water station on the course. 1 station was not sufficient. The warm up was good and helped group people of same level together. Disappointed the medals were all the same for 5k, 10k and half marathon.

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