Three Shires Way Ultra & Marathon

Three Shires Way Ultra & Marathon is Race Harborough’s challenge along the Three Shires Way, spanning Bucks, Beds and Northants. It offers a 50-mile Ultra and a Marathon, starting from Hanslope and Yelden, with a Grafham Water finish. The routes run on well-marked bridleways, including a 12.4-mile Grafham Water loop, and are approachable for newcomers and experienced runners.

Both races are TRA-licensed under UKA rules, with on-course support, mandatory kit, a pacer ban, and checkpoint cut-offs. Finishers receive medals and free digital photos; the event uses a cupless policy with mandatory kit, and proceeds support Jubilee Foodbank and Weston Favell Centre Foodbank. Visit the organization's website for the most recent information.