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The Fix Events All Nations Triathlon Dorney Lake

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

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Race around one of Team GB's most successful venues in the All Nations Triathlon. Great for professionals and first-timers alike, the swim takes place in the lake's clean, calm water before participants head out to the surrounding flat roads. Come for your first triathlon or to clock a quick time.

Review summary

2 Reviews
  • Course
  • Organisation
  • Atmosphere


Tom E
"This was a fantastic choice for my first triathlon. A really well run event..."


Charles G
"This was my first ever triathlon. Arrived at 8:30am by car, registration was..."
See all reviews

How to enter the The Fix Events All Nations Triathlon Dorney Lake

  1. The All Nations Triathlon Dorney Lake

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

The Fix Events All Nations Triathlon Dorney Lake route

This triathlon consists of a 400m swim, 20K bike, and 5K run.

Participants will race around flat closed roads and swim in clean, calm waters. All while being in the epic Olympic surroundings of Dorney Lake - one of Team GB's most successful venues.

The nature of this race makes it ideal for both professionals and first-timers alike.

Athletes will be released in waves, which are detailed below:

WAVE A: No. 377 - 454 - 1000AM (Oxford v Cambridge group)
WAVE B: No. 1 - 100 - 1007AM
WAVE C: No. 101 to 200 - 1014AM
WAVE D: No. 201 to 300 - 1021AM
WAVE E: No. 301 to 376 - 1028AM

Event Details

What’s Included
  • Epic spinning medal
  • On-site free parking
  • Chip timing with instantaneous results
  • Winners trophies
  • Snacks, drinks and other goodies
  • Shower facilities
  • Club house and cafe
  • Course marshalled
  • First aid on-site
Raceday Logistics


0745 - 0930: Registration
0915: Road closed
0940: Bikes must be racked
1000: Race starts

Anyone arriving after 0915 will have to park in the middle car park and walk to the start. Please ensure you arrive within plenty of time to complete the registration process.

Kit List
  • Bicycle in good working order
  • Helmets are mandatory
  • Wetsuits are recommended
  • Swim caps will be provided

This is a fantastic event for spectators who are encouraged to come along and recreate the epic atmosphere of the London 2012 Olympic Games.


Volunteers are integral to making Fix Events the great spectacle which they are.

Your role will be to marshal on the course or help within the event hub giving participants plenty of support and encouragement.

In return, volunteers will receive free entry into one Fix Event. If this sounds like something you would enjoy, then get in touch with [email protected]

Frequently Asked Questions

What if I am not BTF registered?
If you are not BTF registered then you must pay the £5 levy when you arrive at the race HQ. If you are a BTF member, please remember to bring your license.
Am I able to enter a team?
Team entries are allowed; each person will still receive their own time and teams do not have to run together. However, it is always a good bit of fun to have a team name and race with friends or family.
When do I receive my race pack?
Race numbers and details will be emailed to entrants. However, race packs themselves must be collected on the day of the event.
Can I register on the day of the event?
On-the-day registration is subject to availability. Please refer to the website on the days leading up to the race to see if it is sold out.
Have a question? Get answers from our team.

Is your question about booking your place? See our Help Center

The Fix Events All Nations Triathlon Dorney Lake weather forecast

Overcast throughout the day.

Predicted highs
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Meet the organizer

The Fix Events

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The Fix Events
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The Fix Events are ranked #28 in the UK out of 275 organizers

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.

The Fix Events All Nations Triathlon Dorney Lake reviews (2)

4.9 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the The All Nations Triathlon Dorney Lake in 2019

    This was a fantastic choice for my first triathlon. A really well run event from start to finish and fantastic fun. The crowd were great too! Thank you LDT and Fix Events!
  • Did the The All Nations Triathlon Dorney Lake in 2019

    This was my first ever triathlon. Arrived at 8:30am by car, registration was easy and racking was simple. You could rack anywhere, it wasn't assigned. Dorney Lake was a tad cold, at 12.8C, so wetsuits were compulsory. At the start we got a quick briefing and then got into the water for 2 minutes before setting off. The swim was crowded, but the course was easy to follow, with two giant buoys to get around. The exit of the lake was very slippery because of some algae. The bike course was really fun, 4 lap of closed, flat roads by the lake with lots of visibility and space to overtake. The run was 2 out-and-back loops of the lower path next to the lake, a bit narrow for overtaking, and slightly boring just in a straight line, but it did the job. At the finish was water, nutrition bar and sweets. The medal is cool too. The organisation was flawless from start to finish, these guys know what they're doing. The crowd wasn't big or loud, and focused around the transition area, but still great to have the support. I would definitely do this event again, it's perfect for a first-timer as everyone was so friendly, there was a very relaxed atmosphere. Despite getting a puncture on the bike course I still had a great time at my first tri event.

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