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Marathon Prep, Dorney Lake: 16 mile, 20 mile, 24 mile

  • . 150 days left to book

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  • Best price guarantee
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7

Tickets £23–£25

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  • Official booking partner
  • Best price guarantee
  • Free injury protection

Have a question? See our Help Center

Get hyped for the London marathon with the perfect preparation around the stunning Dorney Lake. Perfect for first-time distance runners or seasoned pros, the route weaves around the circumference of this iconic Olympic venue. Come to smash that pre-marathon run or for the inspirational surroundings.

Review summary

4.5
7 Reviews
  • Course
  • Organisation
  • Atmosphere

B

Brian P
"I mean the course is actually great, the problem is that its just a bit dull..."

B

Bruce M
"Good course, good fun and a good atmosphere, couldnt really tell what was going..."

L

Leslie T
"I LOVE Dorney Lake. Running around here is so nice and flat with such a lovely..."
See all reviews

How to enter the Marathon Prep, Dorney Lake: 16 mile, 20 mile, 24 mile

  1. 24 Miles

    Run 24mi
    £23–£25
    View Tickets
  2. 20 Miles

    Run 20mi
    £23–£25
    View Tickets
  3. 16 Miles

    Run 16mi
    £23–£25
    View Tickets

Marathon Prep, Dorney Lake: 16 mile, 20 mile, 24 mile routes

This mixed-distance event is set at the stunning Dorney Lake, just outside of Windsor. The course will spans right along the waters 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. Take inspiration from Team GB's London 2012 success and sign up for this epic event.

The course will be well marshalled and clearly distance marked throughout, with a number of refreshment stations to keep hydrated.

This event will have pacers for the first 20 miles, running at marathon speeds of between 2hrs 45mins and 5hrs 30 mins.

Details of individual races can be found below:

16 mile - 4 laps
20 mile - 5 laps
24 mile - 6 laps

Event Details

What’s Included
  • Chip-timed event
  • Course marshalled
  • Distance markers
  • Refreshment stations
  • Post-race snacks
  • Race pacers
Raceday Logistics

Schedule:

0800 - 0915: Registration process
0930: Race starts

Race packs will be collected on the day. Please arrive at least 45 minutes before the start of the race to allow plenty time for the registration process.

Spectators

Spectators are strongly encouraged to come along and attempt to recreate the epic atmosphere of the London 2012 Olympic Games.

The looped nature of the course allows supporters to catch numerous glimpses of the runners in their Olympic backdrop.

Volunteers

If you would like to find out about volunteering at Dorney Lake or any other of The Race Organiser events then please get in touch at: [email protected]

Frequently Asked Questions

Does this event have a time-limit?
The Race Organiser have agreed a cut-off time of 4 hours with Dorney Lake. As such, please select a distance that you can complete in this time, details can be found below: 16 Mile - 15 minute miles, 20 Mile - 12 minute miles, 24 Mile - 10 minute miles
Are there changing/shower facilities?
Dorney Lake will provide both changing and shower facilities on-site.
Can I leave baggage at the start?
Belongings can be left with the Race Organiser. However, in the interest of space, please bring as little extra baggage as possible.
Have a question? Get answers from our team.

Is your question about booking your place? See our Help Center

Marathon Prep, Dorney Lake: 16 mile, 20 mile, 24 mile weather forecast

Drizzle throughout the day.

19°C
Predicted highs
13°C
Predicted lows
IconHigh chance of rain
IconLight breeze possible, up to 7mph

Meet the organizer

Organizer leaderboard ranking badge

#25

The Race Organiser are ranked #25 in the UK out of 378 organizers

The Race Organiser creates outstanding opportunities for people to bring out their best run, swim or cycle performance. We seek out the most inspiring and rewarding locations, develop race routes and event formats, and create a brilliant atmosphere and race day experience – offered at the best possible value. We don’t think it’s ok to ask people who are aspiring to do amazing things to pay huge sums of money, so we charge as little as we can afford, rather than as much as we can get away with.

Marathon Prep, Dorney Lake: 16 mile, 20 mile, 24 mile reviews (7)

4.5 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the 24 Miles in 2018

    I've been to this event several times and for good reason! Its just racing pure and simple. Its a good course, although I did get a puncher half way round which was bum out. So maybe watch your tyres!
  • Did the 16 Miles in 2018

    Its a very long way! I hadn;t trained and I found this quite tough. Lovely support from the fans and the volunteers got me through
  • Did the 24 Miles in 2019

    I LOVE Dorney Lake. Running around here is so nice and flat with such a lovely breeze to keep you cool. One of my fav places to race!
  • Did the 16 Miles in 2018

    Good course, good fun and a good atmosphere, couldnt really tell what was going on with the timings, just needed to be a bit clearer
  • Did the 16 Miles in 2018

    I mean the course is actually great, the problem is that its just a bit dull for my taste. And was quite windy and cold for that time of year
  • Did the 20 Miles in 2019

    Really well organised - great having the marathon target time pacers, which worked very well for me. Didn't hate the laps as much as I thought I would! A great race to prepare for an upcoming marathon - thank you.
  • Did the 16 Miles in 2017

    Remember to breath in through the nose, due to taking in protein from eating too many midges.