Dorney Duathlon
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Event overview
The Dorney Duathlon takes place on 7 February 2026 at Dorney Lake, Windsor. It is a multi-distance duathlon with run-bike-run format. The course uses flat, scenic grounds and closed roads. The event is chip timed and the bike leg is draft-illegal. The run course is marked with distance flags and marshals will be present on both run and bike sections. Free parking is available.
Race formats
- Super Sprint: 2.5 km - 10 km - 2.5 km
- Super Sprint Relay: 2.5 km - 10 km - 2.5 km
- Sprint: 5 km - 19 km - 2.5 km
- Sprint Relay: 5 km - 19 km - 2.5 km
- Standard: 10 km - 38 km - 5 km
- Standard Relay: 10 km - 38 km - 5 km
Entry and requirements
Entry prices range from £45.00 to £85.00 depending on race and relay options. Age limits apply: some races open to entrants aged 15 and over on 31/12/2026, while standard-distance races and relays require entrants aged 17 and over on 31/12/2026. Participants must hold a British Triathlon race licence, either an annual Core or Ultimate membership or a single-use Race Pass. Visit the organization's website for the most recent information.
