| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 3 | ADIMADO, Kendrick | Bradley (B.-Bourbonnais) | NT |
| 4 | DMYTRIW, Austin | New Lenox (Lincoln-Way Centr | 48.06 |
| 5 | NIANG, Cheikh | Bolingbrook | 48.24 |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | FREIHAT, Wafiq | Orland Park (Sandburg) | 45.17 |
| 2 | MONAHAN, Jake | Tinley Park (Andrew) | 44.43 |
| 3 | JENNINGS, Jacob | Palos Hills (Stagg) | 43.58 |
| 4 | ROGDE, Charles | New Lenox (Lincoln-Way Centr | 43.34 |
| 5 | FREY, Spencer | Bradley (B.-Bourbonnais) | 43.54 |
| 6 | ZOPF, Ashton | Tinley Park (Andrew) | 44.09 |
| 7 | NILSEN, Caleb | Bolingbrook | 44.67 |
| 8 | SCHULTZ, Evan | New Lenox (Lincoln-Way West) | 45.50 |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | EICHIE, Ethan | Frankfort (Lincoln-Way East) | 42.16 |
| 2 | LUSCIATTI, Anthony | New Lenox (Lincoln-Way West) | 41.27 |
| 3 | MCDONALD, Randall | Flossmoor (Homewood-F.) | 40.47 |
| 4 | ELLIS, Myles | Flossmoor (Homewood-F.) | 38.41 |
| 5 | MASAITIS, Deividas | Palos Hills (Stagg) | 40.21 |
| 6 | CZAKO, Graydon | Lockport (Twp.) | 40.80 |
| 7 | PALMER, Charlie | Frankfort (Lincoln-Way East) | 41.91 |
| 8 | LOCKWOOD, Dejuan | Orland Park (Sandburg) | 43.17 |