TRI Challenge Individual and Team Triathlon

Dorney Lake, Windsor, Berkshire

Organiser's Description

Come and join our end of season TRI Challenge. Enter as a full team, split team or take on the individual challenge!

If taking on the full team challenge all team members complete all disciplines. The first team member will set off on the swim, come out of the water, tag the next member who then completes the swim and so on. You then move on to the bike and then the run.

If taking on the split team challenge, once you decide who is doing what discipline the first team member will swim, then hand over the race chip to the 2nd team member, and then the team member biking will do the same thing for the 3rd team member who will finish with the run.

The atmosphere is fantastic, the event is super fun, friendly and a great laugh with a little bit of competition involved as well! The distances are 400m swim/15km bike/5km run.

Start Time



  • Individual Challenge Complete all disciplines yourself
    £44 BOOK
  • Split Team Challenge Price per person
    £27.50 BOOK
  • Full Team Challenge Price per person
    £44 BOOK
  • Split Team Challenge Price per team of 3
    £80.25 BOOK
  • Full Team Challenge Price per team of 3
    £128.40 BOOK

Awesome medal for all

Prizes will be awarded to Male, Female, and Mixed winning teams.

Electronic chip timing

Instant race results

Dedicated bag storage area

Results texted to your mobile phone as you cross the line (additional cost which can be added during your registration)

Dorney Lake, Off Court Lane, Dorney, Windsor, Berkshire SL4 6FJ.

By Car

Dorney Lake is within easy reach of the M4 corridor.

Exit at Junction 7 of the M4 motorway and follow slip road to the roundabout. Turn left onto the A4 towards Maidenhead. After traffic lights, turn left at the roundabout onto B3026, signposted for Dorney and Eton. On the sharp left-hand bend, turn right, signposted Dorney Reach. After 400m enter Dorney Lake, Eton College Rowing Centre through large white double gates. Follow perimeter road parallel to the left of lake, down to the Boathouse.

Dorney Lake is also within easy reach of the M3, M25 and M40 motorways.

By Train

If travelling by train the main stations for Dorney Lake are Slough (Paddington line) and Windsor & Eton Riverside (from Waterloo), but is also near Burnham, Taplow, Maidenhead and Windsor & Eton Central (branch of Paddington line). From these stations you can get a taxi or, if with a bike, you can ride to the venue. We recommend researching the best option before travelling to ensure you arrive on time.

Parking at the venue is available and free for the event.

Registration will be open from 7am and will close at 8.50am. Please note you will collect all race packs, numbers and race chips at registration on the morning. We will be sending full details including your team race number information by email.

Registration will be set by race number so please queue in the appropriate section.

A dedicated bag storage area will be available next to the registration tent.

Toilets and showers are available in the club house.

Please remember that if you are not BTA registered you have to pay the £5 levy at registration. If you are BTA registered please remember to bring your license.

You will receive ONE TEAM CHIP per team. It is your responsibility to hand this over to team mates at each transition. This is essential to record your times!

You MUST decide your team order prior to arrival. A goes first, B second, and C third.

After registering you have to rack your bike in the appropriate location. Group A rack their bikes in Bike Rack A and so on for B and C. You can share 2 bikes between the 3 team members. So A and C can share.

All bikes MUST be racked by 8.55am.

The race will start at 9am sharp for the full team challenge and 10am for the split team challenge. The below info explains the full challenge timings.

Please note for the split team challenge at 10am the first team member swimming must be in the swim pen. Once they come out of the water they run over to the bike pen where they hand over the race chip to the person cycling and after this person completes their 15k cycle they come in to transition then run over to the run pen (was initially the swim pen) and the last team member completes the 5k before crossing the finish line.

The road will be closed at 9.15am. Anyone arriving after this time will have to park in the top car park and walk down.

THE EVENT (How the team challenge works)

Group A starters must gather in Swim Pen at 8.55am. Here they will pick up their swim caps. Group B only moves in after Group A has started the swim. This is when they collect their swim caps and again the same for Group C. Each group will be given different coloured swim caps.

A starters must make sure they have the timing chip on (around their ankle). They start the swim 400m. Once finished they come back and tag B starters who are now in the Swim Pen having collected their swim caps. Remember to hand over the TIMING CHIP.

B now go off for their swim and does the same.

Group A have to move over to the Bike transition and wait in the tag area.

Once Group C have finished the swim they have to run over to the Bike transition area and tag A (remembering to hand over the TIMING CHIP)

A goes off on the bike and completes 3 laps of Dorney Lake. (Helmets MUST be worn)

Once completed they MUST dump their bikes at the BIKE DUMP RACK, and then run over to tag B, and again same for B.

Once they have done this they MUST remove Bike from BIKE DUMP AREA to clear this space for the next group.

You can take the bike back to your car. However please remember your Bike is your responsibility and we can not be responsible for the safe-keeping of this.

Please be careful when crossing the road as bikers will be on the road.

Once Group C finish the bike they dump their bike at the BIKE DUMP Rack and now run over to RUN PEN where Group A will now be. Again they tag A handing over the timing chip.

A now complete one lap of Dorney Lake 5km, coming back to tag B who are now in the pen.

C will complete the last lap and will come back and cross the finish line, completing the race.

This is a non-drafting event

The event is great fun and a great buzz for every level of triathlete. Please make sure you come prepared and have all your essential kit with you including wetsuits which must be worn for the swim and helmets which again must be worn on the bike. Results will be up online within 48 hours of the event completion. We look forward to seeing you at the event and if you have any questions regarding the day, please do not hesitate to contact us.

Super friendly, helpful, supportive and professional team to motivate, support and inspire you

Olympic venue

Clean, calm lake waters

Fast, flat closed road bike and run course

Suitable for all abilities

Awesome atmosphere

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TRI Challenge Individual and Team Triathlon

Race Entry £
Booking Fee £0
Total Cost £

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