English football league system
Northern Premier League Premier Division, Southern Football League Central Division, Southern Football League South Division and Isthmian League Premier Division (level 7, 22 teams each, running in parallel): The champions in each division automatically win promotion. The next four teams in each division play in the playoffs. Theh the playoff winners also win promotion. The bottom two teams in each division and two 20th-placed teams with the lowest points per game ratio are relegated to a level 8 division. If, after promotion and relegation, the number of teams in the divisions is not equal, one or more teams move between the four divisions to make the numbers even.