Eton Dorney. Long Swim. 26th Sept 2020.

Entires now sold out. 

Travel Warning!

25-28 September 2020 – full weekend closure between junctions 7 and 8/9

The M4 will be closed in both directions over the weekend of 25-28 September 2020 between junctions 7 (Slough West) and 8/9 (Maidenhead). This is for demolition of the old Ascot Road bridge near Bray. The closure will start after 8pm Friday 25 September and the motorway will reopen by 6am on Monday 28 September.

Please plan your route in advance! Junc 7 is the normal turn off the M4 for Eton Dorney. 

Note: As event organisers we are not offering diversion advice. 


  • Individual - 2.5k - £20.00
  • Individual - 3.8k - £25.00
  • Individual - 5k - £30.00

Closing Date: Online entries close 2 days pre-event  
No entries on the day.

Limited to just 120 entries. 

Check your start time and entry confirmation here

Saturday 26th September 2020

Eton College, Windsor, SL4 6QP - View Location


Open water swimming and events, in general, are in uncertain times at present. Our normal operations have been changed and new GPS technologies introduced to an event that provides a platform for participants to adhere to the current social distancing policies.

Each participant is issued with an individual start time, a GPS tracker, and a swim tow float. Participants engage in the rolling start every 30 seconds and then follow there chosen distance via the course marking. 

The added benefit, of course, is that your friends and family can watch the action unfold on the live tracking pages (links provided below).

The Olympic venue, Eton Dorney, offers a beautiful clear lake with clear lines of view. The venue is private and specifically hired for the purpose.

About GPS Tracking:

Provided by Geo Tracks.

Instead of using the traditional 'timing chip' the GPS tracker does the same job of providing results and split times but also allows your friends and family to follow your progress live! 

The GPS tracker will be issued in a neoprene ankle bracelet much like the standard timing chip. For the swim section of the triathlon, the GPS tracker is put in a tow float (see the event information pack for more details on this).

Using the GPS trackers and geofences (a virtual geographic boundary, defined by online coordinates, that enables software to trigger a response when a tracking device enters or leaves a particular area) timing points and results are provided without the need for any human interactions and infrastructure.


Please only arrive at the venue 30 before your allotted start time. register at any time up to 15 minutes before start time     

  • 14:00 Rolling race starts for all distances 


    • All swimmers will receive a medal on completion of their swim  
    • Water safety staff and craft on duty   
    • GPS tracking and timing  
    • Live results   
    • Free car parking    
    • Toilets    
    • Medics on site
    • Drinks and feed stations on the course (end of the pontoon)    
    • Baggage storage in the registration tent
    • Event T-shirts for sale at online entry check out @ £15. Collected at the event
    • Bespoke wooden finishers medal for sale at online entry check out @ £3.5. Collected at the event

      Please note that due to current guidance and venue restrictions the changing rooms and boathouse will be shut, the venue is also not allowing spectators.

      Pre-event information pack:

      Download the participant information pack here


      Junior 16 - 19     
      Senior 20 - 39     
      Vet 40 - 49     
      Super vet 50+ 

        Dorney Lake is renowned for having its own weather system! The dead straight 2km long stretch of water can see swimmers faced with flat water at one end and a challenging chop at the other. The course is a rectangle lap of a buoyed course. 

        2.5km - 1 lap  
        3.8km - 1 laps     
        5km - 2 laps  

        Event rules:

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

        • All swimmers will read and adhere to the 'Participant Event Information' (available to download from this event web page approx 2 weeks pre-event date)  
        • Wetsuits are mandatory for all swimmers unless special permission has been granted by the organisers pre-event for individuals to swim non-wetsuit. Please email for further information
        • All swimmers must wear the issued swim hats during the course of the swim event
        • All swimmers must use the issued swim tow floats
        • Cut off times:   
        • 2.5km 1hr 30mins
        • 3.8km - 1hr 50mins   
        • 5km - 2hr 20mins   
        • Swimmers over these times will be collected from the water and returned to shore

          Refunds / transfers:

           For full Votwo T&C's please click here. 










          Swim Routes: