| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | CHEY, Ike | FR | Glenview (Glenbrook South) | 1:09.00 | |
| 2 | ALI, Aayan | SO | Glenview (Glenbrook South) | 1:08.00 | |
| 3 | O'CONNOR, Aidan | FR | Glenview (Glenbrook South) | 1:06.00 | |
| 4 | OWENS, Chase | FR | Glenview (Glenbrook South) | 1:05.10 | |
| 5 | CHA, Ethan | SO | Glenview (Glenbrook South) | 1:06.00 | |
| 6 | DUQUE, Mika | FR | Glenview (Glenbrook South) | 1:07.00 | |
| 7 | GOODMAN, Max | FR | Glenview (Glenbrook South) | 1:08.00 | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | DRAVENACK, James | FR | Glenview (Glenbrook South) | 1:05.00 | |
| 2 | KIM, Jacob | FR | Palatine (H.S.) | 1:03.50 | |
| 3 | CRUZ, Axel | SO | Glenview (Glenbrook South) | 1:02.00 | |
| 4 | HOEXTER, John | FR | Glenview (Glenbrook South) | 1:01.00 | |
| 5 | KOGUT, Jackson | SO | Glenview (Glenbrook South) | 1:01.50 | |
| 6 | NASSIF, Elie | SR | Glenview (Glenbrook South) | 1:03.00 | |
| 7 | ANDRADE, Angel | SO | Glenview (Glenbrook South) | 1:04.00 | |
| 8 | GORLA, Sanjeev | JR | Glenview (Glenbrook South) | 1:05.00 | 
| Lane | Athlete | Yr. | Team | Seed | Note | 
|---|---|---|---|---|---|
| 1 | THOMAS, Joel | SO | Glenview (Glenbrook South) | 1:00.00 | |
| 2 | ZIMBRAKOS, Dimitri | SR | Des Plaines (Maine West) | 59.67 | |
| 3 | MICHELS, Luke | SR | Des Plaines (Maine West) | 57.32 | |
| 4 | SCHEFFLER, Bryan | SR | Glenview (Glenbrook South) | 55.00 | |
| 5 | WESTFALL, Anthony | SR | Palatine (H.S.) | 56.10 | |
| 6 | CANALIA, Gio | JR | Glenview (Glenbrook South) | 58.50 | |
| 7 | SZMAJDA, Jan | FR | Glenview (Glenbrook South) | 1:00.00 | |
| 8 | CISNEROS, Alex | SO | Des Plaines (Maine West) | 1:01.00 |