Riverside Marathon & Half Marathon
Sunbury-on-Thames, United Kingdom • 23 Nov 2025
The Riverside Marathon & Half Marathon is a scenic running event taking place along the River Thames, featuring both marathon and half marathon distances. Participants can choose to complete either 4 laps for the half marathon or 8 laps for the marathon. The course is UKA certified and offers a flat, fast route with no elevation gain, making it ideal for runners of all levels. All finishers receive a medal, and the event is part of the Icebird/Firebird four-race series for 2025. With limited places available, early registration is encouraged. Visit the organization's website for the most recent information.