Start your summer strong at one of the UK's most iconic multisport events the Royal Windsor Triathlon returns on Sunday 14th June 2026! With Sprint, Standard, Relay and 10k options available, this award-winning race is perfect for triathletes of all abilities.

The first Royal Windsor Triathlon was created in 1991, and 34 years later is now firmly established as one of the top events in the triathlon calendar. Few triathlons can compare with the historical backdrop of Windsor Castle, the majestic River Thames, the green vista of the Long Walk and the stunning overall surroundings of Windsor.

Whether you’re going solo or teaming up for the relay, the Royal Windsor Triathlon is a must do event with a royal backdrop and a buzzing race village atmosphere.

*Please note: BTF Race day pass is not included in the entry and needs to be purchased separately