Thames Riverside 20

Paced 20 mile race along the River Thames Towpath in 2025. Hosted by Clapham Chasers Running & Triathlon Club. Flat, traffic free and mostly off road route along the south side of River Thames. From Race HQ (start and finish) at Old Deer Park, runners complete a 20 mile course along the Thames towpath. The terrain varies and is uneven in stretches. Primarily gravel with mud in places and limited lengths of footpath. Normal road or trail shoes will be ideal. Each mile point will be marked. In the event of unexpected maintenance or flooding on the route, well-marked short diversions may be introduced. Runners will need to keep left at all times since the course will be open to the public who retain right of way.