Dorney Lake Triathlon

JUL

26

2026

Challenge yourself at the Dorney Lake Triathlon in Windsor on Sunday 26 July 2026, with Super Sprint, Sprint and Standard distances plus relay and Aquabike options for solo or team entries. Enjoy a flat, fast course, chip timing, a themed medal and post race goodies.

Sun 26 Jul 2026

Windsor, South East (England)

Registration

Sprint Aquabike Sprint Relay Sprint Triathlon Standard Aquabike Standard Relay

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Event overview

The Dorney Lake Triathlon takes place at Dorney Lake, Windsor, UK on Sunday 26 July 2026. The organiser offers individual and team options: Super Sprint, Sprint and Standard triathlons, Sprint and Standard relays (teams of 2 or 3), and Sprint and Standard Aquabike (swim-bike) entries. The venue is a purpose-built lake with a flat bike and run area; the course terrain is listed as road. Entry fees range from £58 to £120 across the available races.

Race distances and course details

Super Sprint: 400m swim, 9.5km bike - 2 laps, 2.5km run
Sprint: 750m swim, 19km bike - 4 laps, 5km run
Standard: 1500m swim, 38km bike - 8 laps, 10km run

Elevation is listed as 20m for Super Sprint, 40m for Sprint and 80m for Standard. Each discipline will be marked with distance flags and marshals will be on course.

What is included

Entries include a themed medal, free race photos, chip-timed results and post-race goodies. An event village with food and drink options and race marshals is provided. The organiser notes sustainability is a growing focus in their event planning. Visit the organization's website for the most recent information.