10:00
Age 15 & over on 31 Dec 2025
£72-£87
The venue is private and specifically hired for the purpose of a traffic-free triathlon and swimming events.
Flat and very, very fast! Dorney Lake is renowned for its traffic-free, smooth tarmac course. It is the perfect setting for first-time racers and more experienced athletes alike.
This event is part of Eton Dorney Triathlon & Swims.
Triathlon briefings will be held 10 minutes before the start in the swim in area. You must attend the briefing ready to start your triathlon.
All the distances are open to teams of 3.
Each team member completes a discipline in succession. You must inform the staff at registration that you are a team entry as you will have specific instructions for handing the chip between team members.
Eton Dorney is the perfect venue for spectators with a large viewing balcony and cafe at the boathouse.
Dorney Lake
Off Court Lane, Lake End Road
Windsor
Buckinghamshire
SL4 6FJ
UK
The transition area is in front of the shower/toilet block and event registration.
Sprint = x 1 lap.
750m clockwise. Rectangle course with the swim exit into transition. The water is very clean and clear. The lake tends to warm up very quickly after a few days of sunshine. The course marked by large inflatable buoys. Keep these to your right.
Sprint = X 4 laps.
Clockwise lapped course around the return lake. Each lap is 5km long. Ride on the left-hand side and overtake on the right. No drafting or riding as a group. It is advisable to use a GPS or bike odometer to aid in counting laps.
Sprint = X 1 lap.
Clockwise, looped course using the lakeside path and returning on the estate road. Drinks stations at the far and close turn points.
Teams of 3.
Entry fee
£72.00
Team entry fee
£87.00
“I absolutely love this event and venue. The staff could not have been more helpful for my first ever triathlon!”
Julie Kettler
11:30
Age 15 & over
£62-£77
08:00
Age 17 & over
£82-£97