Interested to see how states run their state Tournaments.
In Illinois it is 4 classes based on enrollment with roughly 140 schools in each. Single elimination - so the winner must win 7 in a row (possibly 8 if a very low seed). Schools are placed into one of 8 geographic sectionals and then seeded within by coaches. Sectional winners make up the quarterfinals.
Public and privates together. Privates and open enrollment public schools have their enrollment numbers adjusted based on few factors.