2027 Boys Basketball

2027 Class 8-4A Regional Assignments
Registered Participants: 484   -   1A/2A/3A/4A Enrollment Split: 68/123/265   -   Determining Class Split
Regional Host   |   Co-op = Co-op Host   |   Coed = Coed Approved
Sectional 1
@ TBD     (Host Info)
Monday, February 1, 2027,  6:00 PM
@ TBD
Regional 1
Arlington Heights South   
Arlington Heights Thomas   
Barrington Prairie    (Host Info)
Barrington Station   
Lake Zurich North   
Lake Zurich South   
Vernon Hills Hawthorn North   
Vernon Hills Hawthorn South   
 
Regional 2
Plano   
Rockford Eisenhower   
Rockford Flinn   
Rockford Lincoln   
Rockford Marshall   
Rockford RESA   
Rockford West   
Sandwich   
 
Sectional 2
@ TBD     (Host Info)
Monday, February 1, 2027,  6:00 PM
@ TBD
Regional 3
Bellwood Roosevelt   
Cicero Unity   
Evanston Chute   
Evanston Haven   
Evanston Nichols   
Maywood Irving    (Host Info)
Melrose Park Stevenson   
Summit Heritage   
 
Regional 4
Bolingbrook Brooks    (Host Info)
Bolingbrook Humphrey   
Bolingbrook Jane Addams   
Downers Grove Herrick   
Downers Grove O'Neill   
Willowbrook Westview Hills   
Woodridge Jefferson   
 
Sectional 3
@ Chicago Heights MS     (Host Info)
Host: Chicago Heights MS
Monday, February 1, 2027,  6:00 PM
@ Chicago Heights MS
Regional 5
Calumet City Dolton 149   
Chicago Heights MS    (Host Info)
Harvey Brooks   
Homewood Hart   
Lansing Memorial   
Markham Prairie-Hills   
Phoenix Coolidge   
Steger Columbia   
 
Regional 6
Flossmoor Parker   
Frankfort Hickory Creek   
Frankfort Summit Hill   
Homer Glen Homer   
Matteson Colin Powell   
Matteson Huth    (Co-op)
Mokena   
 
Sectional 4
@ Minooka     (Host Info)
Host: Minooka
Monday, February 1, 2027,  6:00 PM
@ Minooka
Regional 7
Joliet Gompers   
Joliet Washington   
Lemont Old Quarry   
Lockport Oak Prairie    (Host Info)
New Lenox Liberty   
New Lenox Martino   
Romeoville Lukancic   
Romeoville Martinez   
 
Regional 8
Channahon   
Joliet Dirksen   
Joliet Hufford   
Minooka   
Ottawa Shepherd    (Host Info)
Shorewood Troy   
Yorkville   
 




IESA Boys Basketball 2027 Class 8-4A Regional Assignments
Sectional 5
@ Mahomet-Seymour     (Host Info)
Host: Mahomet-Seymour
Monday, February 1, 2027,  6:00 PM
@ Mahomet-Seymour
Regional 9
Bourbonnais UGC   
Coal City   
Kankakee JHS   
Manhattan   
Manteno   
Park Forest Michelle Obama STA   
University Park Crete Monee   
 
Regional 10
Champaign Edison   
Champaign Franklin   
Champaign Jefferson   
Danville North Ridge   
Mahomet-Seymour   
Monticello   
Rantoul Eater   
Urbana MS   
 
Sectional 6
@ Dunlap MS     (Host Info)
Host: Dunlap MS
Monday, February 1, 2027,  6:00 PM
@ Dunlap MS
Regional 11
Bloomington Evans   
Bloomington JHS   
Morton JHS    (Host Info)
Normal Chiddix   
Normal Kingsley   
Normal Parkside   
Washington Central   
 
Regional 12
Canton Ingersoll   
Dunlap MS    (Host Info)
Dunlap Valley MS   
East Peoria Central   
Galesburg JHS   
Macomb   
Pekin Broadmoor   
Pekin Edison   
 
Sectional 7
@ Mt. Zion     (Host Info)
Host: Mt. Zion
Monday, February 1, 2027,  6:00 PM
@ Mt. Zion
Regional 13
Charleston   
Decatur Stephen Decatur    (Host Info)
Effingham JHS   
Mattoon   
Mt. Zion   
Rochester   
Taylorville JHS   
 
Regional 14
Chatham Glenwood   
Jacksonville MS   
Quincy    (Host Info)
Springfield Franklin   
Springfield Grant   
Springfield Jefferson   
Springfield Lincoln    (Co-op)
Springfield Washington    (Co-op)
 
Sectional 8
@ Edwardsville Liberty     (Host Info)
Host: Edwardsville Liberty
Monday, February 1, 2027,  6:00 PM
@ Edwardsville Liberty
Regional 15
Alton   
Bethalto Trimpe    (Host Info)
Edwardsville Liberty   
Edwardsville Lincoln   
Granite City Coolidge   
Jerseyville Community   
Roxana   
 
Regional 16
Cahokia Wirth    (Host Info)
Collinsville   
Highland MS   
Mascoutah   
O'Fallon Carriel   
O'Fallon Fulton   
St. Jacob Triad   
 

Class History

From 1930 to 1972, there were two classes of basketball, Class A (Heavyweight) and Class B (Lightweight). An additional class was added in 1973--Class C (7th Grade). The Heavyweight and Lightweight classes were based on age, height and weight. From 1977-1984, the Heavyweight class was divided into two classes based upon enrollment--(A & AA). From 1985-2006, the Association adopted the format of 7th and 8th grade play based upon a school's enrollment (7A, 7AA, 8A and 8AA). Starting in 2007, the Association adopted a four class system in each grade level (7-1A, 7-2A, 7-3A, 7-4A, 8-1A, 8-2A, 8-3A and 8-4A). The current classification system assigns 25% of the schools to each of the four classes.

How Class Split is Determined

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