Class 3A-Waterloo Regional
05/21 - 05/26/12
First round
| Date | Time | Event | Final |
|---|---|---|---|
| 4:30 pm | Carbondale-1 at Waterloo-2 - Final |
Semifinal
| Date | Time | Event | Final |
|---|---|---|---|
| 4:00 pm | Waterloo-2 vs Mount Vernon, Illinois-1 at Waterloo - Final | ||
| 4:00 pm | Mascoutah-3 vs Marion-4 at Waterloo - Final |
Championship
| Date | Time | Event | Final |
|---|---|---|---|
| 11:00 am | Marion-0 vs Waterloo-11 at Waterloo - Final |