Dorney Triathlon

12th September 2020.

Start times:
Sprint: From 07.00
Standard: From 08.30
Open Water Swim: From 10.30

This event is organised by  Run Through & Active Training World

Dorney Triathlon

12 September 2020

Sprint Triathlon and Aquabike starting from – 7:00am

Standard Triathlon and Aquabike starting from  – 8:30am

Open Water Swimming starting from  – 10:30am

We’re back and have been given the green light!

Take on a Sprint or Standard Triathlon, a Sprint or Standard Aquabike or an Open Water Swim  in and around Dorney Lake on Saturday 12th September 2020. There’s something for everyone at this unique and inspiring Olympic venue.

All  swim events will take the style of a time trial with athletes started at 20 second intervals with the fastest athletes starting the swim first. This is based on your estimated finish time for your chosen swim distance which you will be asked for on registration.

The purpose built lake is perfect for the swim and the flat grounds lend themselves to a totally flat bike and run course, the ideal venue for a chip timed personal best. Each discipline will be accurately marked out with distance flags and we will have plenty of helpers to keep you on track and to encourage you all the way to the finish.


Chip timed results

Unique themed medal

Free official event photos

Post race snacks

Come and enjoy the day with us; we hope to see you there!

Online entries: Pay by major credit/debit cards


Race numbers and timing chips will be collected at Dorney Lake on the morning of the race. (time to be advised). Please arrive in plenty of time to collect your registration pack and set up in transition.

Detailed race notes will be sent out a week before the race and a pre-event briefing will be available online.

The day license for Non-BTF members is included in the entry price.


Book your place

Details Price Qty
Dorney Triathlon Standard Distance Non BTF Entry £76.00 (GBP)  
Dorney Triathlon Standard Distance BTF Entry £70.00 (GBP)  
Dorney Triathlon Sprint Distance Non BTF Entry £66.00 (GBP)  
Dorney Triathlon Sprint Distance BTF Entry £60.00 (GBP)  
Dorney Triathlon Aquabike Standard Distance Non BTF Entry £66.00 (GBP)  
Dorney Triathlon Aquabike Standard Distance BTF Entry £60.00 (GBP)  
Dorney Triathlon Aquabike Sprint Distance Non BTF Entry £56.00 (GBP)  
Dorney Triathlon Aquabike Sprint Distance BTF Entry £50.00 (GBP)  
Dorney Triathlon 1500m Open Water Swim £20.00 (GBP)  
Dorney Triathlon 750m Open Water Swim £15.00 (GBP)  



We actively welcome support and involvement from local communities, businesses and individuals. If you would like to find out more about marshalling, sponsorship or group bookings please contact us at the address below

Due to current restrictions all event staff and volunteers will need to complete a BTF Pre-Health Questionnaire. This also applies to Spectators and competitors. For this reason we are discouraging spectators from attending the event. If you would like more info on this event please use the email address below:


Unique themed medal for all!

Event Chip Timing will record your times. Results will be live at throughout and after the race.

Course Information

SWIM:   PLEASE NOTE: For the September 2020 event the swim will only be 1 lap for each distance. All  swim events will take the style of a time trial with athletes started at 20 second intervals with the fastest athletes starting the swim first. This is based on the estimated finish time given at the checkout when entering.

BIKE: The 5km bike loop will be completed 4 times for sprint distance athletes and 8 times for standard distance athletes. It is your responsibility to count your own laps. We find the best way of doing this is with the aid of a bike computer or watch.

RUN: Starting from the transition area, triathletes will run either 1 or two out and back loops, alongside the lake. The course is on pavements and is completely flat. There will be 1 drinks station on the course, manned by marshals serving water in plastic cups. This is the only drinks station and you will pass it on each lap.

Further Course Information & Maps

Other Race Information

It is a statutory requirement that every competitor completes a BTF Pre-Event Health Questionnaire no more than 14 days before the start of the event. This will be emailed to you on the weekend before the event. It is important that you complete and return this to confirm that you are fit to run and have not experienced any Covid-19 symptoms in the last 14 days.  
You can see the full guidance issued by British Triathlon HERE.

Race Numbers
You will be provided with two race numbers in your registration pack. Your race number must be clearly visible on your front for the run and on your back for the bike. If you are not using a race belt, please pin one number on your back and one on your front. If you are using a race belt, only one number is required, provided you adjust the position of your race number during each leg of the race.

Parking and Transport
There will be free parking for all participants next to the event village and start and finish!

Changing and Bag Storage
We will not be providing a changing area, therefore please come changed and ready to race.  There will not be a baggage drop area for you to leave any belongings however you will be allowed a small bag to be left alongside your bike within the transition area.

There will be toilets a short distance from the transition area.

The organisers hold the rights to amend/cancel any event at late notice. This includes any aspect of the event such as race time, date, venue, fees or prizes. In the event of a cancellation that is beyond the control of the organisers, such as adverse weather conditions and communicable diseases, attempts will be made to reschedule the event and entries will be automatically transferred. Where an event can not be rescheduled committed contractors will be paid and remaining funds will be offered as partial refunds or donated to charity. Where an event is not fully cancelled or rescheduled and the participant chooses not to race, they will not be entitled to a refund.


By entering this event you agree to the below terms and conditions:

Your details will kept in accordance with the Active Training World Privacy Policy

Your name, date of birth and email details will be onto the chip timing company. Personal details will be deleted 1 week after the event.

Where specified on the booking form any medical information will be passed onto the medical team present at the event. 


1) I declare that I am medically fit to compete & understand that I do so entirely at my own risk.

2) I understand that I enter the race at my own risk and that no person(s) or organisation(s) will be held responsible for any accident, injury or loss to myself, prior to, during or after the event.

3) Participants agree to allow RunThrough to use any images obtained on the day on their website or to be distributed to third parties.

4) I understand the organisers reserve the right to alter the arrangements and conditions, should circumstances require.

5) By entering this event, the athlete indicates acceptance of BTF rules.


LOCATION: Dorney Lake, Windsor