Well, Ive been out of high school 2 years now but back when i was there we started practicing two weeks before our first game. We would train from 6Am-8Am then from 6PM to 8 PM up until school started, usually about 1 1/2 weeks. During the morning sessions we would run. (fast 2 mile run, 6 mile team run, paylay, horseshoes (if anyone knows what these are they are the worst), sprints, pushups, situps, etc...) It all payed off and we were always in great shape though.