Dorney Lake Triathlon - July
From Dorney Lake Events
- Date Sun 12th July 2026
- Time 07:30
- Location Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ
- Price £61.48 - £127.20
- Races 7 races
- Distances Sprint, Olympic
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Event summary
Get ready for an exhilarating day of athleticism at the Dorney Lake Triathlon, hosted by Dorney Lake Events! On Sunday, July 12, 2026, join us in the picturesque Windsor, Berkshire, for an unforgettable triathlon experience at this iconic Olympic venue. Participants can choose from three exciting race distances: the Super Sprint Triathlon featuring a 400m swim, 9.5km bike ride, and a 2.5km run; the Sprint Triathlon with a 750m swim, 19km bike ride, and a 5km run; and the challenging Standard Triathlon that includes a 1500m swim, 38km bike ride, and a 10km run.
With a flat and fast course perfect for achieving personal bests, each segment of the race will be clearly marked with distance flags, and our dedicated team of volunteers will be on hand to provide support and encouragement every step of the way. For those looking for an alternative challenge, there is an Aquabike option and a relay format that allows teams of 2 or 3 to share the athletic feats. Whether you're a seasoned triathlete or a newcomer, the Dorney Lake Triathlon promises to be an inspiring
With a flat and fast course perfect for achieving personal bests, each segment of the race will be clearly marked with distance flags, and our dedicated team of volunteers will be on hand to provide support and encouragement every step of the way. For those looking for an alternative challenge, there is an Aquabike option and a relay format that allows teams of 2 or 3 to share the athletic feats. Whether you're a seasoned triathlete or a newcomer, the Dorney Lake Triathlon promises to be an inspiring
Dorney Lake Triathlon - July
Sun 12th July 2026
Organiser's Description
Join us for the Dorney Lake Triathlon on Sunday 12th July 2026
Take on a Super Sprint or Standard triathlon around Dorney Lake on Sunday 12th July 2026 and take the opportunity to race around this unique and inspiring Olympic venue!
The purpose built lake is perfect for the swim and the flat grounds lend themselves to a totally flat bike and run course, the ideal venue for a chip timed personal best. Each discipline will be accurately marked out with distance flags and we will have plenty of helpers to keep you on track and to encourage you all the way to the finish.
For those who don’t want to take part in the run, there is also an Aquabike (swim-bike) option, and for those who would like to compete as a team, there is a relay option, which allows 2 or 3 individuals to share the disciplines between them.
COURSE DETAILS:
Super Sprint Triathlon
400m Swim | 9.5km Bike - 2 Laps | 2.5km Run
Elevation - 20m | Terrain - Road
Sprint Triathlon
750m Swim | 19km Bike - 4 Laps | 5km Run
Elevation - 40m | Terrain - Road
Standard Triathlon
1500m Swim | 38km Bike - 8 Laps | 10km Run
Elevation - 80m | Terrain - Road
RACE DISTANCES & START TIMES:
7:30am – Sprint Tri –Under50 ‘Open’ category
7:45am – Sprint Tri – 50 and Over ‘Open’ category & All Female category & All Sprint Relays & All Sprint Aquabike
8:30am – Standard Tri – Under40 ‘Open’ category
8:45am – Standard Tri – 40 and Over ‘Open’ category & All Female category & All Standard Relays & All Standard Aquabike
10:00am - Super Sprint Triathlon
RACE END:
13:30 pm
Take on a Super Sprint or Standard triathlon around Dorney Lake on Sunday 12th July 2026 and take the opportunity to race around this unique and inspiring Olympic venue!
The purpose built lake is perfect for the swim and the flat grounds lend themselves to a totally flat bike and run course, the ideal venue for a chip timed personal best. Each discipline will be accurately marked out with distance flags and we will have plenty of helpers to keep you on track and to encourage you all the way to the finish.
For those who don’t want to take part in the run, there is also an Aquabike (swim-bike) option, and for those who would like to compete as a team, there is a relay option, which allows 2 or 3 individuals to share the disciplines between them.
COURSE DETAILS:
Super Sprint Triathlon
400m Swim | 9.5km Bike - 2 Laps | 2.5km Run
Elevation - 20m | Terrain - Road
Sprint Triathlon
750m Swim | 19km Bike - 4 Laps | 5km Run
Elevation - 40m | Terrain - Road
Standard Triathlon
1500m Swim | 38km Bike - 8 Laps | 10km Run
Elevation - 80m | Terrain - Road
RACE DISTANCES & START TIMES:
7:30am – Sprint Tri –Under50 ‘Open’ category
7:45am – Sprint Tri – 50 and Over ‘Open’ category & All Female category & All Sprint Relays & All Sprint Aquabike
8:30am – Standard Tri – Under40 ‘Open’ category
8:45am – Standard Tri – 40 and Over ‘Open’ category & All Female category & All Standard Relays & All Standard Aquabike
10:00am - Super Sprint Triathlon
RACE END:
13:30 pm
Races
-
Sprint Distance Triathlon
Sun 12th July 2026 (07:30)
£82.68
Booking for more than 1? -
Sprint Distance Aquabike
Sun 12th July 2026 (07:45)
£72.08
Booking for more than 1? -
Sprint Distance Triathlon Relay
Sun 12th July 2026 (07:45)
£104.94 per team
Team 2-3 -
Standard Distance Triathlon
Sun 12th July 2026 (08:30)
£104.94
Booking for more than 1? -
Standard Distance Aquabike
Sun 12th July 2026 (08:45)
£94.34
Booking for more than 1? -
Standard Distance Triathlon Relay
Sun 12th July 2026 (08:45)
£127.20 per team
Team 2-3 -
Super Sprint Distance Triathlon
Sun 12th July 2026 (10:00)
£61.48
Booking for more than 1?
Reviews
- 5
- 4
- 3
- 2
- 1
4.7
12 reviews
Really well organised event, despite the very early start! Impressive how so many different events are co-ordinated on the same day.
As a first timer, it was a bit daunting and the only thing that would have made it slightly easier, if there were pre-made holes in the number for your strings on the number belt!
Antony
·a year ago
Really well organised and huge amount of support to help complete the event. It's perfectly set and self contained. Looking forward to next year's event.
The race itself was a 5/5 event. The disappointment was the lack of lack of catering and refreshments. One van that just did teas / coffees / soft drinks. The catering room in the pavilion had nothing for vegetarians, hardly anything left, this was at 12 noon.
Just one small merch pop up with not much stock.
Other events we've attended at Dorney Lake have had so much more.
Race was good and well organised though
A perfect event. There was a very clear pre race information pack and any questions were promtly answered. Everybody I interacted with both on the day and before the event was absolutely lovely and I look forward to coming back. A nice flat course really opens up the opportunity for people to come along and try the sport that are otherwise intimidated. 10/10 recommended
James
·3 years ago
Brilliant venue and very well organised on the day. My only faults were how long it took to get our raceday information pack and the lack of water stations or shade on the 10k run.
Patrick
·3 years ago
This was a great venue to do my first sprint triathlon. The event was very well organised and the layout of the swim, ride and run were simple to navigate. The course for riding and running are nice and flat so a great way to ease you into the sport.
Matthew
·4 years ago
Well organised event. Kept well informed via email and SMS. Clear race briefing video. Very flat course for my first triathlon. Cheers
TONY
·4 years ago
Great day all round !
A great event at a fantastic venue! Lovely Marshalls and supporting crowds. The only thing I would say is there wasn't a race briefing at the beginning - I thought we had to swim 2 laps of 750m, but it turned out it was only 1 lap of 1500m. Only a minor thing, otherwise it was amazing!
Location
SL4 6FJ, Windsor, United Kingdom
Dorney Lake Triathlon - July
