2021 Illinois High School Football Playoff Brackets: IHSA Class 8A
2021 Illinois High School Football Playoff Brackets: IHSA Class 7A
2021 Illinois High School Football Playoff Brackets: IHSA Class 6A
2021 Illinois High School Football Playoff Brackets: IHSA Class 5A
2021 Illinois High School Football Playoff Brackets: IHSA Class 4A
2021 Illinois High School Football Playoff Brackets: IHSA Class 3A
2021 Illinois High School Football Playoff Brackets: IHSA Class 2A
2021 Illinois High School Football Playoff Brackets: IHSA Class 1A