Dorney Lake Triathlon
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Event overview
The Dorney Lake Triathlon takes place on Sunday, 26th July 2026 at Dorney Lake, Windsor, UK. The event is organised by RunThrough UK and offers individual and team race formats. Entry options include individual triathlons, aquabike (swim-bike) events, and relay teams of two or three. Entry fees listed range from £58 to £120.
Course details
- Super Sprint: 400m swim, 9.5km bike (2 laps), 2.5km run; elevation 20m; terrain road
- Sprint: 750m swim, 19km bike (4 laps), 5km run; elevation 40m; terrain road
- Standard: 1500m swim, 38km bike (8 laps), 10km run; elevation 80m; terrain road
The swim takes place in the purpose-built lake. The bike and run courses are described as flat and take place on road surfaces. Each discipline will be marked with distance flags and marshals will be present on course.
Included services
Entries include a themed medal, free race photos, chip-timed results, and post-race goodies. The event features an event village with food and drink options and partner-provided items. Visit the organization's website for the most recent information.
