5 min warm up walk; Set distance run of around 3.25 miles. [Call outs every minute up to 25 minutes, thereafter every half minute up to 36 minutes so you can gauge your running time over the set distance]; Finishing with a 5 min cool-down walk.

5 min warm-up walk; 5 min warm-up run; FIVE INTERVAL runs each one comprising a 4 min tempo run followed by a 1 min recovery run; Finishing with a 5 min cool-down walk.