Kid I know is going to be a junior. I believe PR in the mile is 5:5X. Coach has him starting his 1st week of summer training at 40 miles, running 7x a week. His training plan is 10 weeks, running every day, no days off. Weekly mileage of 40, 42, 47, 49, 53, 58, 60, 60, 62. Long runs of 12 miles. I'm all about mileage, but no days off for 70 days seems like a little crazy. Also: I'm OP. Not the kids father, never have coached, and didn't run in High School. I'm just guessing and looking for what others have seen.