The high school football playoffs are well underway across the state of Iowa. After some exciting matchups and surprising upsets, it’s onto the semifinal round for every classification with four teams remaining in 8-Player and classes A-5A. On3 is tracking scores across the Hawkeye State as 28 teams continue with one goal in mind: hoisting a state championship trophy in a few weeks. The On3 Massey Ratings — which were officially used during the BCS era and have generated college high school sports team rankings since 1995 — rank sports teams by analyzing game outcomes, strength of schedule and…