| 
| 2019 Regional Bracket/Results |  
| 7-1A
  |  
7-2A
  |  
7-3A
  |  
7-4A
  -  
8-1A
  |  
8-2A
  |  
8-3A
  |  
8-4A
  -  
Regional Champs/Sectional Match-ups |  
| 
| Regional Host: Barrington Station |  
| Barrington Station (1st Seed) |  |  |  
|  |  
| BYE | Barrington Station | 33 |  |  |  
|  | 12/03/2019
 - 
OT |  
| Barrington Prairie (4th Seed) | 37 |  | Barrington Prairie | 28 |  | 12/02/2019 |  |  
| Sandwich (5th Seed) | 6 | Barrington Station | 36 |  |  | 12/06/2019 |  
| Arlington Heights Thomas (2nd Seed) |  |  |  | ARLINGTON HEIGHTS THOMAS | 45 |  |  |  |  
| BYE | Arlington Heights Thomas | 29 |  |  | 12/03/2019 |  
| Woodridge Jefferson (3rd Seed) | 40 |  | Woodridge Jefferson | 19 |  | 12/02/2019 |  |  
| Plano (6th Seed) | 0 |  |  
 Class HistoryThe IESA sanctioned girls basketball in 1979. There was one class of girls basketball until 1986 when the activity was split into 7th and 8th grade classes. From 1990-2005, the Association adopted the format of 7th and 8th grade play based upon a school's enrollment (7A, 7AA, 8A and 8AA). Starting in 2006, 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 |