Royal Windsor Triathlon
Royal Windsor Triathlon, taking place Sunday 14 June 2026 at Alexandra Gardens, Windsor, is RunThrough’s iconic multisport event. Distances include Sprint (750m swim, 20km bike, 5km run) and Standard (1500m/40km/10km), plus Relay for teams of three. Athletes swim open water in the River Thames, cycle through Windsor past Windsor Castle into the countryside, and finish along the Long Walk in Windsor Great Park.
The event is award-winning, repeatedly named BTF's Event of the Year, with a lively race village, marshals, and post-race freebies, a unique themed medal, and free race photos. Celebrating a 35-year anniversary, it champions sustainability and a strong spectator atmosphere, with a welcoming community vibe. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
