- Sat 9 May 2026
10:15
Age 15 & over on 31 Dec 2026
£60
- 400 m pool swimming
- 20 km road cycling
- 5 km road running
Event overview
Experience a vibrant day of outdoor racing that brings athletes together across multiple disciplines, from a fast, exciting super sprint triathlon to classic road running distances.
Whether you’re new to multisport or chasing a personal best, choose your challenge with 5K, 10K or half marathon races in an energetic, supportive event atmosphere.
Highlights
- Multiple race options in one day, from a super sprint triathlon to a half marathon
- Ideal for first-timers, club athletes and experienced racers alike
- Well-organised, friendly event with a supportive atmosphere throughout
- Opportunity to race, spectate or cheer across several disciplines
- Clearly structured schedule making it easy to plan your race day
- Finisher medals and race-day rewards across all events
- A celebration of multisport and running, bringing athletes together at the famous Olympic venue
This event is part of The All Nations Triathlon, 5K, 10K and Half Marathon Run.
Event photos
Event video
- Average fitness
- Beginner-friendly
- Dogs allowed at venue
- Event village
- Families
- Spectators
- Venue accessible
- Wetsuit advised
- Wetsuit not allowed if too hot
- Wetsuit required if too cold
Timetable
Team entries
Get as many friends, family or colleagues together and take part as a team. You are not required to stay together and each person will receive their own time however it's just fun to participate under a team name.
Wheelchairs
The routes are suitable for wheelchair users.
Dogs
Dogs may run with their owners in the 5K, 10K or Half Marathon running events but not the triathlon events. Please ensure your dog is on a short lead/harness and that you are careful on the course and respect other runners and park users.
- Cut off time
- Flat
- Headphones allowed
- Marshals
- Multiple laps
- Navigation not required
- Traffic free
- Water stations
- Wave start
- Way markers
- GPX available
GPX route
The route is displayed on the map above.
Overview
- Closed lake and closed roads
- The cycle and run route is flat
- Cycle is 4 laps for 20K
- The run is out and back twice to make 5K
- Wheelchair friendly
- The course may be altered at any point up to event day if necessary
Wetsuits
- Water temperature will be tested on the day
- If under 11 degrees, the swim is cancelled
- Over 11 degrees, wetsuits must be worn
- Over 16 degrees, and wetsuits are optional
- Over 22 degrees and no wetsuits are allowed
- Cafe
- Changing facilities
- Free parking
- Park
- Secure bag storage
- Showers
- Toilets
Event HQ
Dorney Lake
Off Court Lane, Lake End Road
Windsor
Buckinghamshire
SL4 6FJ
UK
Parking
Parking is the main carparking by the clubhouse. This is to the left when you get to the end of the lake.
By rail
If travelling by train the main stations for Dorney Lake are Slough (Paddington line) and Windsor and Eton Riverside (from Waterloo) but is also near Burnham, Taplow, Maidenhead and Windsor and Eton Central (branch of Paddington line). From these stations you can get a taxi, or if you have a bike, you can ride to the venue.
- Chip timing
- Drinks
- Goody bag
- Medal
- Snacks
- Trophy
Included
- Awesome spinning medal you will love to add to your collection
- Electronic chip timing and instant race results
- Instant live race results
- Results texted to your mobile phone as you cross the line (small fee)
- Trophies for winners
- Snacks, drinks and other goodies for all entrants
- Stunning clubhouse and cafe
- British Triathlon Federation registered event
You will need
If you are not already a member of British Triathlon, you will need:
- British Triathlon Federation Race Pass - £8
Well here it was – the first triathlon race of the season for me. This is now the second time I have taken part in this event and I can see it becoming the first event and a regular thing for me each season. Danny M
Good event in a fantastic location (2012 Olympic site), cold water but perfect TRI courses for beginners as it is flat for the bike and running parts. Had a great day and will probably do it again next year... Patrice B
First time for me in open water. Easy access to water and a good transition zone, but a bit boring with the 4 bike loop, nice and flat run. Brian R
Reviews thanks to RaceCheck
- Age 15 & over on 31 Dec 2026
- Entries open
- Collect race pack
- Enter online
Entry fees
Entry fee
£60.00
Other races at event
- Sat 9 May
- #3 of 4
08:15
Age 17 & over
£30-£35
- 13.1 miles road running