Dorney Lake Duathlon - December

Get ready for an exhilarating day of fitness and fun at the Dorney Lake Duathlon, organized by RunThrough Events, taking place on Saturday, December 12th, 2026, in the picturesque setting of Windsor, Berkshire. This exciting event offers participants the chance to race on the scenic grounds of an iconic Olympic venue, with options for both Sprint and Standard distances. Whether you’re a seasoned athlete or a newcomer, the flat and fast course is perfect for achieving your personal best.

The event features three thrilling race distances: the Super Sprint Duathlon with a 2.5km run, 9.5km bike, and a final 2.5km run; the Sprint Duathlon covering a 5km run, 19km bike, and concluding with another 2.5km run; and the Standard Duathlon, which includes a challenging 10km run, 38km bike, and a final 5km run. With plenty of enthusiastic volunteers to guide and cheer you on, this event is not only a great way to test your limits but also a fantastic opportunity to enjoy a day of camaraderie and competition. Don’t miss out on this chance to be part of an unforgettable experience!