Last updated at 7:43 a.m. on Sunday, March 15, 2009.
| Display: 64-Team State Final Bracket | |
| 1. DeKalb (NIU) Super-Sectional | |
| 2. Romeoville (Lewis U.) Super-Sectional | |
| 3. Carbondale (SIU) Super-Sectional | |
| 4. Macomb (WIU) Super-Sectional | |
| DeKalb (NIU) Super-Sectional | ||||||
| Regionals | Sectionals | Super-Sectional | State Qualifier | |||
| Princeton | Princeton 58-57 |
Princeton 69-50 |
Princeton 61-34 |
Princeton 71-65 |
Winnebago 69-41 |
|
| Mendota | Mendota 66-40 |
|||||
| Peru (St. Bede) | ||||||
| Manlius (Bureau Valley) | Spring Valley (Hall) 63-59 |
|||||
| Spring Valley (Hall) | ||||||
| Monmouth (M.-Roseville) | Monmouth (M.-Roseville) 36-34 |
Monmouth (M.-Roseville) 58-46 |
||||
| Taylor Ridge (Rockridge) | Taylor Ridge (Rockridge) 51-48 |
|||||
| Knoxville | ||||||
| Kewanee (H.S.) | Sherrard 57-44 |
|||||
| Sherrard | ||||||
| Peoria (Manual) | Peoria (Manual) 83-65 |
Peoria (Manual) 72-70 |
Peoria (Manual) 71-62 |
|||
| Farmington | Canton 70-66 |
|||||
| Canton | ||||||
| Peoria (P. Christian) | Peoria (P. Christian) 64-58 |
|||||
| Chillicothe (Illinois Valley Central) | ||||||
| Seneca | Seneca 68-31 |
Eureka 40-39 |
||||
| El Paso (E.P.-Gridley) | El Paso (E.P.-Gridley) 57-42 |
|||||
| Ottawa (Marquette) | ||||||
| Minonk (Fieldcrest) | Eureka 63-56 |
|||||
| Eureka | ||||||
| Rock Falls | Rock Falls 59-47 |
Morrison 76-52 |
Winnebago 57-45 |
Winnebago 58-38 |
||
| Savanna (West Carroll) | Sterling (Newman Central Catholic) 65-61 |
|||||
| Sterling (Newman Central Catholic) | ||||||
| Morrison | Morrison 67-49 |
|||||
| Port Byron (Riverdale) | ||||||
| Winnebago | Winnebago 64-38 |
Winnebago 35-30 |
||||
| Oregon | Oregon 63-51 |
|||||
| Stillman Valley | ||||||
| Byron | Byron 55-45 |
|||||
| Forreston | ||||||
| Genoa (G.-Kingston) | Elgin (St. Edward) 61-52 |
Elgin (St. Edward) 59-51 |
Rockford (Lutheran) 39-35 |
|||
| Elgin (St. Edward) | Elgin (St. Edward) 73-36 |
|||||
| Amboy | ||||||
| Plano | Aurora (A. Christian) 54-51 |
|||||
| Aurora (A. Christian) | ||||||
| Rockford (Lutheran) | Rockford (Lutheran) 55-29 |
Rockford (Lutheran) 44-42 |
||||
| Rockford (Christian Life) | Rockford (Christian Life) 51-45 |
|||||
| Harvard | ||||||
| Poplar Grove (North Boone) | Rockford (R. Christian) 63-49 |
|||||
| Rockford (R. Christian) | ||||||