London 2 Brighton Challenge

A 100 km walking, jogging and running challenge organized by Action Challenge (Ultra Challenge) over a weekend in late spring. The route starts in Richmond-upon-Thames, follows the River Thames, crosses the North Downs and the South Downs, and finishes at Brighton Racecourse. Shorter options of roughly 25, 50 and 75 km are offered, with rest stops along the route, and many entrants fundraise for charity.

Text from OyList