Marlow
Triathlon Calendar near Marlow 2026-2027
Monthly updates for Marlow
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Explore the top triathlons near Marlow for 2026-2027! We've gathered 25 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
A draft-illegal duathlon at Dorney Lake offering Super Sprint, Sprint and Standard distances with relay options. The flat, chip-timed multi-lap course is marked and supported, with spectator facilities and free parking.
December 2026
A chip-timed duathlon at Dorney Lake with Super Sprint, Sprint and Standard formats, relay options, and a flat road course around an Olympic venue. The event includes a themed medal, free photos and an event village with food and partner goodies.
Dorney Duathlon in Windsor offers Super Sprint, Sprint and Standard distance races around a flat Olympic venue. The event is draft illegal and requires British Triathlon membership or a single race pass.
June 2027
Multi-distance triathlon in Windsor with an open-water Thames swim, cycling past Windsor Castle and a finishing run through Windsor Great Park.
September 2027
A 20 km swimrun on 5 September 2027 that mixes three river swims on the Thames with three trail runs through Wytham woodlands, starting at Eynsham Lock and finishing at Wytham Chalet, with three feed stations and a finish café.