The Cotswold Way National Trail is a scenic, undulating route through quiet Cotswold countryside following the ridge through the Cotswolds Area of Outstanding Natural Beauty (AONB) via the villages of Broadway, Winchcombe, Dursley and Wotton-under-Edge. An attractive and popular trail that offers beautiful rural surroundings with facilities and services always near to hand.
This route seems to be run as a race each September: https://cotswoldrunning.co.uk/ Supported FKTs are likely to be set in the race.
If your planning to undertake this route there is lots of information about Chipping Campden here. Places to stay, eat, shop etc before or after your journey. Most people start here and go south to Bath. I guess because south is downhill right?