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TRI Challenge Triathlon

Triathlon: Swim 0.4km, Bike 20km, Run 5km
Event details
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Wrap up your summer the right way with Fix Events' TRI Challenge at Dorney Lake. This year, the event will be a standalone supersprint triathlon, where participants will complete a 400m swim, 20km bike and 5km run around the fast and flat course, experiencing the epic & friendly atmosphere.
C-19 Plan
The Fix Events has confirmed that this event will be going ahead as planned on Friday 18th Sep 2020 in accordance with the COVID-19 safety measures. Learn more

How to enter the TRI Challenge Triathlon

  1. Sprint Triathlon (Individual Challenge)

    Triathlon: Swim 0.4km, Bike 20km, Run 5km
    Event passed

TRI Challenge Triathlon route

This triathlon at Dorney Lake is the perfect triathlon for athletes of all abilities. The course offers clean and calm lake waters and a fast and flat closed road bike & run route, making your event worry-free and a ton of fun.


Swim: 400m

Bike: 20km

Run: 5km

Event Details

What’s Included
  • Awesome medal
  • Free Parking
  • Electronic chip timing
  • Instant race results
  • Olympic venue
  • Clean, calm waters
  • Toilets
  • Drinks and snacks


This year there will only be an individual option due to COVID-19 safety guidelines.

Raceday Logistics

Race packs will be sent to you in the post 1 week prior to the event and recommended arrival times will be sent to you pre-event. You will be asked to enter the site and transition in phases to help with spacing.


10:15: Race starts - the start will be in waves and you will enter the water individually

Baggage Drop:

There will be no baggage drop facilities at this event this year


There will be toilets available, however, showers will not be available this year

Kit List
  • Wetsuits for the swim and helmets for the bike are MANDATORY
  • Participants must bring their own bike
Spectators are not allowed at the clubhouse however if you do have someone driving you or with you please ask them to watch from the grass section slightly down from the clubhouse. This is a requirement from Dorney Lake so please do your best to help support us with this.

Our Fix Events are made possible by the great team that work with them.

If you would like to volunteer at any Fix Events please email [email protected] You will be part of a great team, super friendly environment and some of the best events across the country. Your role will be to marshal on the course or help within the event hub giving participants plenty of support and encouragement. And as a volunteer you will get free entry to any Fix Events. That’s one free event for every time you volunteer (if you want).

Frequently Asked Questions

Can you sign up for the TRI Challenge Team Triathlon on the day?
It's possible to sign up on the day if the event has not sold out. Check online to see whether the event has sold out.
When will I receive my race pack for the TRI Challenge Team Triathlon?
Race packs, including your timing chip and race number, are collected on the day from registration which opens at 7:00am and closes at 8.50am.
At what time does the TRI Challenge Team Triathlon start?
The race starts at 9:00am sharp, with transition closing at 8:55am by which time all bikes must be racked. The road will be closed from 9:15am so anyone arriving after this time will be required to park in the top car park and walk to the event.

TRI Challenge Triathlon weather forecast

Clear throughout the day.

Predicted highs
Predicted lows
IconModerate breeze possible, up to 12mph

Meet the organiser

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Fix Events is one of the leading multisport event management companies in the UK, with over 11 years experience, hosting over 70+ annual events including running, triathlons, corporate and charity events. We create all-inclusive and welcoming events in some of the best locations in the UK, catering for the super competitive and experienced athlete to complete novices and fun runners. We run standalone events under the Fix Events name and also create successful series such as MoRunning, which supports the Movember Foundation, delivering 22+ MoRuns to over 15,000 MoRunners during November. We also host charity events such as the Go Dad Runs inspired by Colin Jackson, the Use Your Senses series in aid of Guide Dogs UK and the Royal British Legion’s Poppy Run Series. We pride ourselves in delivering the very best and most enjoyable sports events we can. We deliver every event with 100% passion and commitment, to the very highest standard.



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