Well, sports are one of our top reasons for homeschooling. My son (middle school) plays select baseball year round, on top of ALL sport seasons at the middle school (last year he wrestled, played football, baseball, and basketball for them). He also fills in sometimes for an AAU basketball team and plays on a select football team (this will be his last year of extra football). Soooo, lots of hours. :D
My daughter (10) is in competitive cheerleading and spends 5 hours a week practicing.