2026 Richmond RUN-FEST Marathon - Sep 13

Riverside point-to-point marathon course in Richmond / Kew with 160m elevation gain. One of England's flattest road marathons: the course climbs and descends just +160m total along the River Thames, so it nets out essentially level — a genuine PR and Boston-qualifying course. Starting beside the Orangery in the Royal Botanic Gardens, Kew, it follows the river past Ham House, Richmond Green, Teddington Lock, Kingston Riverside and Hampton Court Palace, crossing three bridges before finishing in O