| Q | IHSA Class AAA State Qualifying | 42.77 | State Qualifying |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 1 | Midlothian (Bremen) | A | 45.58 |
| 2 | Harvey (Thornton) | A | DNS |
| 3 | New Lenox (Lincoln-Way West) | A | 44.89 |
| 4 | South Holland (Thornwood) | A | 44.47 |
| 5 | New Lenox (Lincoln-Way Centr | A | 44.84 |
| 6 | Calumet City (Thornton Fract | A | DNS |
| 7 | Blue Island (Eisenhower) | A | 45.32 |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 1 | Richton Park (Rich Township) | A | 43.70 |
| 2 | Lansing (Thornton Fractional | A | 43.33 |
| 3 | Bradley (B.-Bourbonnais) | A | 42.75 |
| 4 | Flossmoor (Homewood-F.) | A | 41.43 |
| 5 | Tinley Park (Andrew) | A | 42.64 |
| 6 | Crete (C.-Monee) | A | 42.91 |
| 7 | Chicago Heights (Bloom Twp.) | A | 43.40 |
| 8 | Frankfort (Lincoln-Way East) | A | DQ |