| Boys Class AA Starting Box Assignments |
| Box # |
School |
| 1 |
Champaign Franklin |
| 2 |
Bloomington JHS |
| 3 |
Oak Park Julian |
| 4 |
Mt. Prospect Lincoln |
| 5 |
Lemont Old Quarry |
| 6 |
Arlington Heights South |
| 7 |
Edwardsville Lincoln |
| 8 |
Chatham Glenwood |
| 9 |
Normal Kingsley |
| 10 |
East Peoria Central (2); Dunlap; Morton |
| 11 |
Normal Parkside |
| 12 |
Barrington Prairie (2); Cary; Freeport |
| 13 |
Arlington Heights Thomas |
| 14 |
New Lenox Liberty |
| 15 |
Johnsburg JHS |
| 16 |
Wauconda; Wheeling Holmes; River Forest Roosevelt (2) |
| 17 |
E. St. Louis Lincoln, Edwardsville Liberty; Jacksonville Turner |
| 18 |
McHenry MS |
| 19 |
Mahomet-Seymour |
| 20 |
Springfield Franklin |
| 21 |
Champaign Jefferson |
| 22 |
Sterling Challand; Champaign Edison, Danville North Ridge; Decatur Jefferson |
| 23 |
Mt. Prospect River Trails; Prospect Hts. MacArthur; Woodridge Jefferson; Flossmoor Parker |
| 24 |
Decatur Stephen Decatur; Urbana MS; Rochester (2) |
| 25 |
Buffalo Grove Cooper |
| 26 |
Homer Glen Homer |
| 27 |
Belvidere Central |
| 28 |
Buffalo Grove Aptakisic (2); Mundelein Carl Sandburg (2) |
| 29 |
Frankfort Summit Hill (2); Mokena; Romeoville Martinez |
| 30 |
New Lenox Martino |
|
Class History
The IESA sanctioned Cross-Country in 1979. There was one class of Cross-Country until 1997 when the activity was split into A and AA based upon enrollment. It was split in 2012 into three classes of 1A, 2A and 3A. In 2023 it was split again into the current four classes of 1A, 2A, 3A and 4A.
How Class Split is Determined
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