Last updated at 7:57 p.m. on Sunday, March 21, 2010.
| Display: 64-Team State Final Bracket | |
| 1. DeKalb (NIU) Super-Sectional | |
| 2. West Frankfort (Frankfort) Super-Sectional | |
| 3. Springfield (UIS) Super-Sectional | |
| 4. Joliet (Twp.) Super-Sectional | |
| DeKalb (NIU) Super-Sectional | ||||||
| Regionals | Sectionals | Super-Sectional | State Qualifier | |||
| Winnebago | Winnebago 70-37 |
Winnebago 52-26 |
Winnebago 38-34 |
Winnebago 70-54 |
Peoria (Manual) 63-52 |
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| Stillman Valley | Rockford (Christian Life) 59-53 |
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| Rockford (Christian Life) | ||||||
| Byron | Byron 37-36 |
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| Rockford (Lutheran) | ||||||
| Genoa (G.-Kingston) | Genoa (G.-Kingston) 53-42 |
Rockford (R. Christian) 44-35 |
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| Harvard | Harvard 45-36 |
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| Poplar Grove (North Boone) | ||||||
| Rockford (R. Christian) | Rockford (R. Christian) 58-43 |
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| Elgin (St. Edward) | ||||||
| Rock Falls | Rock Falls 75-53 |
Rock Falls 74-62 |
Princeton 66-55 |
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| Sterling (Newman Central Catholic) | Oregon 58-47 |
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| Oregon | ||||||
| Morrison | Savanna (West Carroll) 77-64 |
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| Savanna (West Carroll) | ||||||
| Princeton | Princeton 63-40 |
Princeton 59-39 |
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| Manlius (Bureau Valley) | ||||||
| Port Byron (Riverdale) | Port Byron (Riverdale) 50-33 |
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| Mendota | ||||||
| Monmouth (M.-Roseville) | Rock Island (Alleman) 69-52 |
Rock Island (Alleman) 49-30 |
Kewanee (H.S.) 55-50 |
Peoria (Manual) 79-31 |
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| Rock Island (Alleman) | Rock Island (Alleman) 51-40 |
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| Aledo (Mercer County) | ||||||
| Sherrard | Sherrard 60-44 |
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| Taylor Ridge (Rockridge) | ||||||
| Chillicothe (Illinois Valley Central) | Spring Valley (Hall) 49-42 |
Kewanee (H.S.) 55-39 |
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| Spring Valley (Hall) | ||||||
| Kewanee (H.S.) | Kewanee (H.S.) 63-43 |
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| Peru (St. Bede) | ||||||
| Peoria (Manual) | Peoria (Manual) 62-46 |
Peoria (Manual) 59-43 |
Peoria (Manual) 79-62 |
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| Peoria (P. Christian) | Peoria (P. Christian) 75-57 |
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| Farmington | ||||||
| Canton | Canton 68-64 |
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| Manito (Midwest Central) | ||||||
| Minonk (Fieldcrest) | Minonk (Fieldcrest) 57-34 |
Minonk (Fieldcrest) 70-57 |
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| Fairbury (Prairie Central) | Seneca 35-32 |
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| Seneca | ||||||
| El Paso (E.P.-Gridley) | El Paso (E.P.-Gridley) 34-32 |
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| Eureka | ||||||