Dorney Duathlon
Always double-check with the organizer's website! This page may contain affiliate links.
Event details
Dorney Duathlon - December takes place on 13 December 2025 at Dorney Lake, Court Lane, Windsor SL4 6FJ. The event is organised by Active Training World. The course uses flat grounds with a flat bike and run layout, and the event is chip timed. The race is designated draft-illegal. The run course is marked with distance flags, and marshals are provided on both run and bike courses. Spectator facilities include a balcony cafe overlooking the transition area and a multi-lap viewing layout. Free parking is available. Participants must hold a British Triathlon race licence by being a Core or Ultimate annual member or by purchasing a single-use Race Pass.
Race formats and entry
Available race options and distances:
- Super Sprint: 2.5 km run, 10 km bike, 2.5 km run
- Sprint: 5 km run, 19 km bike, 2.5 km run
- Sprint Relay: 5 km run, 19 km bike, 2.5 km run
- Standard: 10 km run, 38 km bike, 5 km run
- Standard Relay: 10 km run, 38 km bike, 5 km run
Age limits: Super Sprint and Sprint options are open to entrants aged 15 and over on 31/12/2025; Standard options are open to entrants aged 17 and over on 31/12/2025. Entry prices range from £47 to £88 (GBP), depending on race choice. Visit the organization's website for the most recent information.
