Shires and Spires is a 35 mile circular Ultra Marathon starting and finishing at Naseby Village Hall just outside of Northampton in a wonderful central location. The route is a mix of footpaths, country trails, and roads.

The event features a mixture of trails and roads over 10k (roads), half-marathon, three-quarter marathon (new in 2025 for anti clockwise!), marathon and ultra marathon distances.

All the race options start and finish at Naseby Village Hall, nestled at the heart of the quaint village of Naseby – made famous as the home of the Battle of Naseby in 1645, a major scuffle during the English Civil War.