PHOENIX Riverside Marathon & Half Marathon 2026

The Riverside Marathon & Half Marathon, a Phoenix Running event, takes place on the River Thames. It starts and finishes at Xcel Sports Hub Stadium on Waterside Drive in Walton-on-Thames. The event provides marathon and half marathon races on a UKA-certified, accurately measured course. Entry is limited to 250 participants, and runners must be at least 18 years old. The route uses the off-road riverside towpath, heading from Walton-on-Thames towards Hampton Court and returning. Half marathon participants run 4 laps, and marathon runners complete 8 laps. This course is suitable for those who prefer a flat, repeatable path with no significant elevation changes. Every finisher will receive a medal, and Phoenix Running also awards medals or mementos for their in-person and virtual events.