50K ultramarathons in East of England, United Kingdom in 2026

100km route along the Stour Valley Path, traversing well-marked trails and landscapes made famous by Constable and Gainsborough

50K route along the Suffolk coast from Lowestoft to Aldeburgh, featuring sandy beaches, cliffs, and picturesque towns including Southwold and Dunwich

50K route from Putteridge Bury Estate across North Chiltern ridgeline paths, panoramic countryside views, and scenic climbs including Warden Hill

50K winter loop through the Chiltern Hills, with classic trails, woodland paths, exposed ridgelines, muddy ground and technical stretches

50K trail route from Putteridge Bury Estate through the North Chilterns, with rolling terrain, ridgelines, open views and Warden Hill.