This event has taken place

Congratulations to everyone who took part. We're waiting on information about the next edition of this event.

Did you race? Let the community know how you got on and leave a review.

Add a review

Want to see all previous and future editions of this event, find them below.

Dorney Lake Triathlon Dorney Lake Triathlon Dorney Lake Triathlon

Dorney Lake Triathlon

Windsor, Berkshire

Eton Dorney Rowing Centre, Windsor, SL4 6, United Kingdom

Sun 25th September 2022

Starting at 08:00

6 races

£50.00 - £90.00


In these uncertain times, Votwo wants you to book your 2022 event with confidence*.

We will implement any actions required by government guidance in order to hold the event safely. If in 2021 the event is stopped by national or local lockdown then all entrants will be notified immediately and given the two below options:

Transfer to a rearranged postponed date or next similar event. You will be given a code to enter the relevant event online

Receive a 90% refund on your entry fee. The 10% goes some way to help with unrecoverable losses

Please email [email protected] with which option you would like. The cut off for letting us know is two weeks after the planned/canceLled event. Emails received after this cut off will not be actioned and no transfer or refund will be made

votwo events has provided covid-19 safety information for this event.

Organiser's Description

The Olympic venue, Eton Dorney, offers pan flat, traffic-free roads, and a beautiful clear lake. The venue is private and specifically hired for the purpose of a traffic-free triathlon event.
Sunday 25th September 2022

Flat and very, very fast! Dorney Lake is renowned for its traffic-free, smooth tarmac course. The perfect setting for first-time racers and more experienced athletes alike


  • Individual - Standard


    Individual - 1.5km/38.4km/10km

  • Individual - Sprint


  • Individual - Super Sprint


  • Team Entry - Standard


  • Team Entry - Sprint


  • Team Entry - Super Sprint




  • Individual - Standard


    Individual - 1.5km/38.4km/10km

  • Individual - Sprint


  • Individual - Super Sprint


  • Team Entry - Standard


  • Team Entry - Sprint


  • Team Entry - Super Sprint



What's Included

Finishers medal

Great traffic-free location

On-site free car parking

Water safety cover

Chip timing

Online results

Water station in transition and on the run course


Event medics

Water safety cover

  • OLYMIPIC Venue . Flat / Safe A must for a PB


Free parking at event - follow the yellow signs

Course Details

Flat and very, very fast! Dorney Lake is renowned for its traffic-free, smooth tarmac course. The perfect setting for first-time racers and more experienced athletes alike.

Swim Course:
Super Sprint = x 1/2 lap. Sprint = 1 lap. Standard = 2 laps
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.

Bike Course:
Super Sprint = X 2 laps. Sprint = X 4 laps. Standard = X 8 laps.
Anti-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.

Run Course:
Super Sprint = X 1/2 lap. Sprint = X 1 lap. Standard = X 2 laps.
Clockwise, looped course using the lakeside path and returning on the estate road. Drinks stations at the far and close turn points.

The transition area is in front of the shower/toilet block and event registration.

race merchandise

Stay warm at the event with this bespoke, thick, and cozy hooded top.

These will also be available at the event but you can now preorder your event hoody with us!

Select collection at event (FREE) or post direct to you (£5) at checkout

Sizes: Small - Extra Large

Team Entry

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.

Wave Schedule

08:00 - Wave 1. Standard (Males 16 - 39)

08:30 - Wave 2. Standard (Males 40+ and Teams)

09:15 - Wave 3. Standard (Females)

10:00 - Wave 4. Sprint (Males 16 - 39)

10:30 - Wave 5. Sprint (Males 40+ and Teams)

11:00 - Wave 6. Sprint (Females)

11:30 - Wave 7. Super Sprint (Mixed and all ages)

Race Day Information

All race information will be emailed to all entrants pre-event, giving detailed event instructions. It is a condition of entry to this event that you participate according to the instructions in the event information.

Timings are subject to change

You can refer to our previous event info for further details.

Race distances

Individual - Super sprint - 450m/9.6km/2.5km

Individual - Sprint - 750m/19.2km/5km

Individual - Standard - 1.5km/38.4km/10km

Team - Super sprint - 450m/9.6km/2.5km

Team - Sprint - 750m/19.2km/5km

Team - Standard - 1.5km/38.4km/10km

Event rules

As part of the entry system to the event all participants agree to the following:

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 cyclists will wear a correctly fitted BS-EN cycle helmet

Cycles must have working front and rear brakes and all equipment must be in good serviceable order

Drafting and riding in groups is not permitted

Cyclists must ride on the left-hand side of the track and overtake on the right

Runners must run on the left-hand side of the path and overtake on the right

All cyclists will adhere to the rules and regulations of the highway code. Details can be found here

Full event rules and instructions can be found in the participant information pack published on this page nearer the time of the event


Eton Dorney is the perfect venue for spectators with a large viewing balcony and cafe at the boathouse.

Refunds / Transfers

Please ensure you read and agree to the Votwo Events terms and conditions when you enter the event. In brief, the refund policy is as follows:

Any event entry cancellation received by email to [email protected] more than 14 days prior to the event date will receive a 50% refund or transfer of entry fee towards another votwo event (£5 transfer fee applies). Only emailed cancellations are acceptable. Cancellations made in the 14 days prior to the event start date will not be eligible for any refund or transfer.


  • 5
  • 4
  • 3
  • 2
  • 1


9 reviews


·a day ago

Very well organised. Ideal location for beginners. Fast, flat bike and run courses. Lake swim is excellent as the visibility is very good. I’ve done this event quite a few times over the years. Things to improve - more staff for food places. Queues were long. Can’t fault the event at all though and in such a beautiful setting.

·a day ago

There was very little security in place in the transition area- anyone could walk in and out which was really concerning. When I came to leave at the end with all my stuff, the guy didn’t even check I had the right bike!! 1st event I’ve ever been to where there was no prize giving either. Day was okay and lovely venue. I’ve raced at Dorney before but it was far better organised so would unlikely return with this event organiser running it. Security of my kit is a big deal!

·a day ago

Great day for a very nicely organized triathlon! Access to the site was difficult if you don't have a car so maybe something to address for the next editions! Thanks for the great event!

·a day ago

Great venue, really well organised and good communication beforehand. Only drawback is that it's not the best venue for supporters, particularly on the bike leg.

·a day ago

Really well organised! The water was really clear, the bike and run course was lovely and flat. Event organisers were really helpful. My only suggestion would be numbering the bikes in transition areas for the triathlon and maybe a post race snack should be included in the price?

·a day ago

The location for the race is beautiful and was really well organised. All information was given when you arrive and was well signed which was perfect for me as it was my first race. The picture of the site map was quite pixelated so couldn’t work it out before I arrived which is the only reason I didn’t give 5 stars. Good facilities for supporters and allowed to bring dogs too.
Anna Agnethe

·3 months ago

Lovely venue for smashing your time, really enjoyed it. If you’re after podiums and freebies post-race this won’t be it though. GPS tracking is an extra £5

·3 months ago

I was a bit reluctant to sign up because I thought that 8 laps on the bike course would be a draft fest and dangerous. I was wrong. The competitors were well scattered so there was really no danger at all. I had a great time racing on a fast course. I highly recommend it, especially for beginners who will benefit from a friendly atmosphere and a small field.

·3 months ago

Great beautiful venue on Eton College grounds. Simple course layout for swimming, cycling and running. Course quite flat. Only comment - it would be nice if there was a bike tool station with a pump like in other events.
Add a review


Windsor, Berkshire


For a limited time, subscribe to and get a free tailored training plan and access to your own coach.

A personalised programme worth £75. Unsubscribe instantly anytime.

By signing up you agree to our privacy policy and terms

Image: ©