Jack shares his thoughts on how far and fast you should be running your interval workouts.
Coach Jack Daniels is a private coach for The Run SMART Project. To receive a handwritten schedule from Jack check out the Run SMART Training Plans.
Jack shares his thoughts on how far and fast you should be running your interval workouts.
Coach Jack Daniels is a private coach for The Run SMART Project. To receive a handwritten schedule from Jack check out the Run SMART Training Plans.