Chiltern Wonderland 50

Race facts

• The course covers 80.5 km with 1,707 m of elevation gain.
• It takes place on a Saturday, September 19, 2026 — autumn in this part of the world.
• The closest comparable running event is 5km (& a bit) Fun Run in Amersham & Chiltern Rugby Club, 40 km away, on September 19, 2026.
• 12 of the 12 most similar events take place in the same month.