I had the same question...in short, it is based on the enrollment for your boys in grade 10,11,12. From what I recall....Rustin is just under the AAA qualifications by a few students so they fell into the AA this year. They could be back to AAA next year depending on their enrollment.
https://www.piaa.org/schools/classi...x?sportID=42&district=1&class=AA
