- Sun 12 Jul 2026
08:30
Age 17 & over on 31 Dec 2026
£99-£120
- 1500 m lake swimming
- 38 km road cycling
- 10 km road running
Event overview
Take on a multi-activity event at this iconic Olympic venue, featuring clear water, flat scenic grounds and a supportive atmosphere ideal for personal bests or first-timers.
Highlights
- Fast, flat course with clear-lake swim and scenic bike and run routes
- Perfect for both experienced triathletes and beginners
- Chip-timed racing for accurate results
- Supportive marshals and volunteers throughout the course
- Aquabike (swim-bike) option for those not running
- Relay option for teams of two or three participants
- Draft-illegal race to ensure fair competition
- Set within the inspiring Dorney Lake Olympic venue
This event is part of Dorney Triathlon | July.
Event photos
- Average fitness
- Event village
- Newcomers
- Swim hat required
- Teams
- Wetsuit advised
- Wetsuit not allowed if too hot
- Wetsuit required if too cold
Ability
This event is open to everyone, regardless of ability.
Wetsuit hire
Zone3 wetsuits are available to hire for the day or for the season.
- Distance markers
- First aid
- Flat
- Marshals
- PB
- Traffic free
- Way markers
Overview
A unique and inspiring Olympic venue.
The crystal clear lake and flat, scenic grounds lend themselves to a totally flat bike and run course - ideal for both a chip timed personal best, or first-timers.
There will be plenty of helpers to keep you on track and to encourage you all the way to the finish.
Maps


- Free parking
Event HQ
Dorney Lake
Off Court Lane, Lake End Road
Windsor
Buckinghamshire
SL4 6FJ
UK
- Chip timing
- Goody bag
- Medal
Included
Finishers will receive:
- Custom-designed medal
- Finish line snacks and goodies
- Fantastic triathlon experience
Extras
- Wetsuit hire
- British Triathlon Federation Race Pass (£8)
To participate in this event, you are required to become a member of British Triathlon and hold a race licence.
You can purchase a single-use Race Pass for your race when purchasing your event ticket (or you can become a Core or Ultimate annual member on the British Triathlon website).
Relay competitors also need a license.
- Public transport links
- Recycling
- Sustainability policy
Here are the ways this event cares for the environment:
Summary
- Recycling bins
- Recycling gets separated from general waste
- Finish line water bottles made from recycled material
- Refill taps are provided so participants can bring their own bottle and fill up during the event
- The choice of paper cups at water stations
- Signage including course marking attached with reusable garden wire instead of plastic cable ties
- 'Dynamic bib assignmentβ removes the need for envelopes, sticker labels and excess waste
- Bike racking is provided to promote cycling to the events
- Age 17 & over on 31 Dec 2026
- Entries open
- Enter online
Entry fees
Entry fee
£99.00
Team entry fee
£120.00
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