Nobody determines who goes to playoffs as bad as Louisiana (both public and private schools are in the same brackets). (pulled from
https://www.shreveporttimes.com/story/sports/high-school/football/2021/10/29/lhsaa-football-rankings-louisiana-high-school-playoff-seeding/6136825001/)
The LHSAA uses a power-ranking system to determine which teams make the playoffs.
Teams are seeded for the postseason by their specific power rating, which is calculated by computer. After each game, school representatives enter results into the LHSAA site and the entries are checked for accuracy by an LHSAA official by Tuesday of the next week for posting to the site.
Here is a breakdown of how ratings are determined.
1. A winning team is awarded 10 points. The losing team is awarded nothing.
2. If a school competes against a team in a higher classification, it receives an additional two points for each class it plays up.
3. Add up a team's opponents' collective wins. Then divide that number of wins by the total of games played. Now multiply that by 10.
Add all three of these components together and that is the power rating for that game. Do this for each game played, add them up and then divide that total by the number of games played.
“Obviously, winning helps a school’s power rating the most, but playing up in class against a quality opponent and winning helps as well,” said Eric Held, the LHSAA's Louisiana High School Coaches Association director.
Sometimes Team A loses to Team B, but Team A maintains a higher power rating than the winning Team B.
“That happens a lot,” Held said. “It’s a math problem. If your team loses, it’s better to lose to a team with a lot of wins.”
An opponent’s strength factor is determined by adding the sum of the opponent’s class to the sum of the opponent’s wins and dividing the result by the total number of games.
Here’s what else you need to know:
• A team that wins or ties for a district title automatically qualifies for the LHSAA playoffs regardless of power rating.
• In Classes 2A through 5A, 32 teams advance to the playoffs. In Class 1A, 24 teams get in with eight teams receiving first-round byes.
• In Divisions I, II and III, every team advances to the postseason due to the small number of teams. In Division IV, 16 teams advance.
• There is no minimum number of games a team must have played to qualify for the playoffs.