River Thames Half Marathon

About this event

The River Thames Half Marathon offers a flat, fast course along the River Thames towpath and quiet Surrey roads, starting and finishing at the historic Walton Bridge. The largely traffic-free route passes Hampton Court Bridge and showcases the gentle beauty of the Thames Valley—perfect for runners chasing a personal best or using it as a tune-up for a late autumn marathon. Now in its seventh year, the event has built a strong reputation for friendly marshals, smooth organization, and solid runner support throughout. Pacers help with pacing strategy, while the chip-timed, certified course ensures accurate results. Finishers receive a tech tee, medal, and goody bag with snacks and a commemorative mug.