Class AA operated according to a “sectional complex” format, where seeding was done on a section-wide basis and games were played at the site of the higher seed through the quarterfinals. This page details the scores through the quarterfinals for each sectional complex.
Aurora Sectional
Glenbard East 55-42 IMSA
Aurora East 94-54 Glenbard East
Aurora West 74-49 Marmion
Wheaton-Warrenville South 59-37 Glenbrook South
St. Charles 64-42 Waubonsie Valley
West Chicago 68-57 Geneva
Naperville Central 73-54 Glenbard West
Naperville North 55-44 Batavia
Wheaton North 70-59 Glenbard North
Aurora East 54-48 Aurora West
Wheaton-Warrenville South 70-68 St. Charles
Naperville Central 55-45 West Chicago
Wheaton North 50-34 Naperville North
Bensenville Sectional
Leyden 61-43 Niles West
Glenbrook North 71-50 Leyden
Maine East 45-44 Loyola
Niles ND 64-48 Maine South
St. Viator 75-64 Holy Cross
New Trier 61-47 Weber
Maine West 65-48 Niles North
Glenbrook South 63-54 Evanston
Gordon Tech 77-52 Fenton
Glenbrook North 51-41 Maine East
Niles ND 45-43 St. Viator
Maine West 48-43 New Trier
Gordon Tech 59-50 Glenbrook South
Dolton Sectional
St. Rita 64-57 Blue Island Eisenhower
Thornton 87-42 Oak Lawn
Marian Catholic 74-65 TF North
Leo 65-49 Marist
St. Francis de Sales 80-63 TF South
Brother Rice 49-44 Reavis
Mount Carmel 71-43 Richards
Thornridge 74-54 Thornwood
Thornton 87-62 St. Rita
Leo 79-63 Marian Catholic
St. Francis de Sales 81-58 Brother Rice
Mount Carmel 70-61 Thornridge
Edwardsville Sectional
East St. Louis 76-56 East Alton-WR
O’Fallon 72-70 Belleville West
Civic Memorial 64-63 Alton
ESL Lincoln 69-51 Belleville East
Collinsville 70-50 Cahokia
Jacksonville 54-44 Chatham Glenwood
Edwardsville 68-46 Granite City
Jerseyville 68-62 Taylorville
East St. Louis 78-53 O’Fallon
Civic Memorial 81-55 ESL Lincoln
Collinsville 65-44 Jacksonville
Edwardsville 61-38 Jerseyville
Elmhurst Sectional
Proviso West 83-37 Argo
Morton 64-63 York
Fenwick 64-53 St. Ignatius
De La Salle 53-51 St. Laurence
Oak Park-RF 42-13 Willowbrook
St. Joseph 41-36 Lyons Twp.
Proviso East 108-26 Riverside-Brookfield
Nazareth 56-52 St. Patrick
Proviso West 68-59 Morton
Fenwick 50-48 De La Salle
St. Joseph 51-49 Oak Park-RF
Proviso East 61-30 Nazareth
Lincoln Sectional
Decatur Eisenhower 66-59 Decatur MacArthur
Danville 72-43 Decatur Eisenhower
Washington 62-59 East Peoria
Champaign Central 71-52 Olympia
Metamora 76-54 Normal
Champaign Centennial 44-38 Lincoln
Morton 80-48 Stephen Decatur
Urbana 76-70 Rantoul
Bloomington 76-67 Mount Zion
Danville 68-48 Washington
Metamora 68-64 Champaign Central (OT)
Morton 87-51 Champaign Centennial
Bloomington 73-62 Urbana
Lincolnshire Sectional
Carmel 64-58 Lake Zurich
Waukegan 75-54 Grayslake
Highland Park 65-63 Antioch
Mundelein 53-33 Round Lake
Lake Forest 53-47 Zion-Benton
Libertyville 80-68 Deerfield
Stevenson 88-56 Grant
Warren 77-74 North Chicago (OT)
Waukegan 70-46 Carmel
Mundelein 53-51 Highland Park
Libertyville 60-51 Lake Forest
Stevenson 78-65 Warren
Machesney Park Sectional
Rockford Boylan 117-63 Crystal Lake Central
Woodstock 70-67 Hononegah (OT)
Crystal Lake South 58-45 Cary-Grove
Rockford Jefferson 56-55 Dundee-Crown
Rockford Guilford 76-50 Johnsburg
Harlem 68-57 Jacobs
Rockford Auburn 85-53 McHenry
Belvidere 56-52 Rockford East
Rockford Boylan 86-74 Woodstock
Crystal Lake South 70-68 Rockford Jefferson
Rockford Guilford 61-48 Harlem
Rockford Auburn 44-43 Belvidere
Moline Sectional
Rock Island 76-42 Rock Falls
DeKalb 55-47 Sycamore
Ottawa 64-52 Rochelle
Moline 73-38 Dixon
LaSalle-Peru 64-35 Pontiac
Freeport 48-45 Sterling
East Moline 70-68 Geneseo
Morris 60-54 Streator
Rock Island 75-53 DeKalb
Ottawa 53-52 Moline
LaSalle-Peru 50-43 Freeport
Morris 50-48 East Moline
New Lenox Sectional
Joliet Central 61-49 Minooka
Bradley-Bourbonnais 79-64 Joliet Central
Lincoln-Way 70-60 Rich South
Joliet Catholic 74-67 Kankakee
Crete-Monee 73-68 Providence (OT)
Hillcrest 86-58 Bloom Trail
Rich Central 75-56 Bloom
Joliet West 63-51 Tinley Park
Homewood-Flossmoor 67-55 Rich East
Bradley-Bourbonnais 47-41 Lincoln-Way
Crete-Monee 61-57 Joliet Catholic
Hillcrest 73-55 Rich Central
Joliet West 63-45 Homewood-Flossmoor
Palatine Sectional
Wheeling 63-37 Elk Grove
Larkin 63-46 Wheeling
Hersey 59-53 Elgin
Lake Park 50-49 Streamwood
Conant 105-80 Barrington
Addison Trail 73-65 Rolling Meadows
Palatine 62-48 Schaumburg
Fremd 59-37 Prospect
Hoffman Estates 65-62 Buffalo Grove
Larkin 74-59 Hersey
Lake Park 76-67 Conant
Palatine 48-45 Addison Trail
Fremd 59-55 Hoffman Estates
Peoria Sectional
Peoria Central 84-39 Canton
Chillicothe IVC 65-50 Pekin
Quincy 78-56 Springfield Lanphier
Peoria Richwoods 73-36 Limestone
Peoria Manual 60-55 Peoria ND
Peoria Woodruff 66-63 Springfield SE
Galesburg 87-55 Macomb
Springfield 70-49 Sacred Heart-Griffin
Peoria Central 61-49 Chillicothe IVC
Quincy 71-64 Peoria Richwoods
Peoria Manual 98-66 Peoria Woodruff
Springfield 84-73 Galesburg
Romeoville Sectional
Lockport 69-57 Bremen
Andrew 59-46 Plainfield
Hinsdale Central 69-59 Romeoville
Shepard 58-43 Benet
Downers Grove North 59-55 Oswego
Downers Grove South 67-44 Sandburg
Hinsdale South 51-38 Stagg
Bolingbrook 78-65 Oak Forest
Lockport 56-50 Andrew
Shepard 78-40 Hinsdale Central
Downers Grove South 60-57 Downers Grove North
Hinsdale South 67-56 Bolingbrook (OT)
Salem Sectional
Carbondale 89-42 Mascoutah
Mattoon 65-53 Effingham
Paris 70-51 Charleston
Murphysboro 59-47 Marion
Centralia 84-51 Herrin
Harrisburg 65-58 Mount Carmel
Triad 51-47 Highland
Mount Vernon 55-53 Salem
Carbondale 84-67 Mattoon
Paris 53-49 Murphysboro
Centralia 71-50 Harrisburg
Mount Vernon 93-46 Triad