THE CW50 IS A 50 MILE SINGLE LOOP AROUND THE BEAUTIFUL CHILTERN COUNTRYSIDE. THE ROUTE TAKES IN 5600FT OF CLIMB AND VISITS PICTURESQUE VILLAGES, BURSTING WITH HISTORY, FEATURING LOCATIONS MADE FAMOUS BY BRITISH FILM & TELEVISION. THIS EVENT IS THE FINAL RACE IN THE 50 MILE GRAND SLAM. 

https://www.centurionrunning.com/races/chiltern-wonderland-50-2024