The One for the Planet powered by Climategames
From onerace events
Event summary
Whether you are a seasoned competitor or a newcomer, you can choose from an array of exciting race distances in Triathlon, Aquabike, Duathlon, Aquathlon, Swim, and Run. With its flat and smooth surfaces, Dorney Lake provides the perfect backdrop for a thrilling day by the water, all while supporting a great cause for our planet. Don’t miss out on this incredible opportunity to challenge yourself and celebrate the spirit of community and sustainability!
The One for the Planet powered by Climategames
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Previous editions
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Reviews
4.32 reviews
Took part in the 2025 edition · 1 year ago
Took part in the 2025 edition · 1 year ago
Races
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Run - 15k
Entries closed08:00
£30.00
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Run - 10k
Entries closed08:00
£25.00
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Run - 5k
Entries closed08:00
£25.00
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Aquabike - Standard
Entries closed08:00
£55.00
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Aquathlon - Standard
Entries closed08:00
£55.00
-
Triathlon - Standard
Entries closed08:00
£75.00
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Duathlon - Standard
Entries closed08:15
£60.00
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Aquabike - Sprint
Entries closed08:45
£50.00
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Aquathlon - Sprint
Entries closed08:45
£50.00
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Triathlon - Sprint
Entries closed08:45
£65.00
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Duathlon - Sprint
Entries closed09:00
£55.00
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Aquabike - Super Sprint
Entries closed09:30
£45.00
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Aquathlon - Super Sprint
Entries closed09:30
£45.00
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Triathlon - Super Sprint
Entries closed09:30
£55.00
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Duathlon - Super Sprint
Entries closed09:45
£50.00
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Swim - 1500m
Entries closed10:15
£30.00
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Swim - 3000m
Entries closed10:15
£40.00
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Swim - 750m
Entries closed10:15
£25.00
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Run - 10k
Entries closed11:30
£25.00
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Run - 15k
Entries closed11:30
£30.00
-
Run - 5k
Entries closed11:30
£25.00
Event information
Based on the distance you are completing you will be required to do a particular number of laps at each leg.

- Finisher Medal
- Refreshments & Snacks
- Photos
Event village in situated in Dorney Lake Boathouse, Court Ln, Dorney, Windsor, SL4 6Q
On arrival to the site please follow the event signage.
Your timing chip, bib number and bike/helmet stickers will be available for collection on the event day from 06:45am. These will be ready for you to collect from Registration Tent, which will be located between the river and transition.
Depending on the event discipline you are competing in, you will be supplied with the following:
· timing chip (to be worn on your left ankle);
· bib number;
· bike and helmet stickers;
· swim hat.
Participants should not expect to receive anything by mail.
Registration on the day might be available.
Transition area
Transition area opens at 06:45am. To enter transition, you must show your corresponding event number and bike sticker (which must be stuck to your seat post) to the event marshal.
The Route
All swim, bike and run courses are marked with signs and well marshalled.
The course map is available to view here.
Based on the distance you are completing you will be required to do a particular number of laps at each leg.
Pre-Race Email
Detailed pre-race information will be published to all registered participants 2 weeks prior to the event.
Suitable medical cover is provided at our events in case of a medical emergency.
Bag Drop
Whilst we recommend bringing as little as possible, runners can leave essential belongings with us using the tear-off baggage strip on their bib.
Bag drop will not be available for the multisport events. Participants should leave all belongings with their vehicle/in transition where possible and arrive ready to run
Catering
We will have a food caterer onsite for pre and post race refreshments.
Photography
Event images are expected to be available, usually within 24 hours of the event.
Toilets
There are free portable toilets in the event village. This is your only chance to go, as there won't be toilets on the route.
Changing Room / Showers
There are no dedicated changing rooms/showers.
Water / Snack Stations
Water will be available at the start and finish for a refill.
Run routes only will have the water stations on course. Participants must carry with them anything necessary to refuel and hydrate during the remainder of the event.
Spectators are permitted anywhere in the start finish area. Please be mindful of others' comfort and safety in more popular locations, including the finish area.
Dogs
Participants must not be accompanied by a personally owned or controlled dog during an event. Entries may be accepted from participants with medical assistance dogs, subject to them being correctly registered and identifiable as such, and subject to prior approval by the Event Director.
Buggies, Pushchairs and Strollers
This event is not suitable for buggies, pushchairs, strollers (or similar) due to the nature of the terrain.
Wheelchairs
These events are suitable for wheelchair users. Any participants wishing to compete with specialised equipment are asked to contact us before entering to ensure we can accommodate any additional requirements.
Earphones / Headphones
Noise-cancelling earphones/headphones are prohibited and, whilst we discourage the use of other earphones/headphones at our events, participants choosing to use them should ensure they are set to a low enough volume that instructions from event officials can be clearly understood.
Race Deferrals
Race deferrals are allowed until the event registration is closed (usually the Friday 12noon before the event date).
Organiser's description
Location
Dorney Lake, Court Lane, Off Lake End Road, Dorney, Windsor, SL4 6FJ
F8QX+3M Windsor, UK
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