I fell in love with the sport as a high school cross country runner and I’ve loved working with high school runners during my coaching career. This Level 4 training plan is ideal for an experienced and durable (not injury prone) high school runner, most likely an upper classman. Before starting the plan, you should be used to running 45-60 min on easy days and up to 75 minutes as your longest run. This plan includes 4-7 days of running per week along with recovery/cross-training days. ...