| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 2 | KESNER, Gavin | New Lenox (Lincoln-Way Centr | NT |
| 3 | HARVEY, Pierre | Bolingbrook | 51.04 |
| 4 | COLEMAN, Conner | Frankfort (Lincoln-Way East) | 48.99 |
| 5 | EARLEY, Jekyri | Bradley (B.-Bourbonnais) | 50.04 |
| 6 | SHELTON, Christian | Frankfort (Lincoln-Way East) | 51.59 |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | MOSS, Danny | Bradley (B.-Bourbonnais) | 46.74 |
| 2 | LINK, David | Orland Park (Sandburg) | 46.14 |
| 3 | BACKSTROM, Bryant | Flossmoor (Homewood-F.) | 45.66 |
| 4 | LOGAN, Jaydon | Bolingbrook | 44.74 |
| 5 | SENODENOS, Jack | Palos Hills (Stagg) | 45.56 |
| 6 | ABBEY, Christian | Orland Park (Sandburg) | 45.68 |
| 7 | BURKE, Josh | Tinley Park (Andrew) | 46.44 |
| 8 | SAMRA, Afaneh | Palos Hills (Stagg) | 48.69 |