1. 2024 East St. Louis (Ran through the playoffs with wins of 67, 48, 44, 48 and 20 points. The last one was against DuKane champion.)
2. 2023 Loyola (Unbeaten CCL/ESCC-Blue champion; they gave Mt. Carmel and Lincoln-Way E. their only losses for the season.)
3. 2022 Mt. Carmel (Unbeaten CCL/ESCC-Blue champion, with all five playoff wins by double digits.)
4. 2025 East St. Louis (Currently on a 19-game winning streak against Illinois opponents, with only one game closer than 20 points.)
5. 2021 Cary-Grove (Did the seemingly impossible by defeating the Luther Burden led Flyers in the state championship game.)
6. 2019 Lincoln-Way East (No team came closer than ten points all year. Shut out Warren in the championship game with stifling defense.)
7. 2017 Lincoln-Way East (The unbeaten Griffins were not totally dominant, but they were the best in 8A this year.)
8. 2015 Loyola (After a dominant regular season, the unbeaten Ramblers had a couple of narrow escapes in the playoffs.)
9. 2018 Nazareth (Nazareth finished second in the ESCC and had a controversial scare against Simeon, but they were the 7A champs.)
10. 2016 Prairie Ridge (This was seemingly the better of back-to-back unbeaten 6A champs as they won every game by double digits.)