| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 4 | YOON, Josh | FR | Arlington Heights (Hersey) | NT |
| 5 | BROOKS, Conor | JR | Rolling Meadows | 1:05.00 |
| 6 | JOHN, Jake | SO | Arlington Heights (Hersey) | NT |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | HERNANDEZ, Chris | FR | Rolling Meadows | 1:04.00 |
| 2 | SCHEER, Alexander | FR | Mt. Prospect (Prospect) | 1:00.10 |
| 3 | BARRETTO, Danny | SO | Rolling Meadows | 59.90 |
| 4 | CALLAGHAN, Miguel | SO | Mt. Prospect (Prospect) | 59.10 |
| 5 | OLBERG, Ben | JR | Rolling Meadows | 57.80 |
| 6 | WITTENBORN, Luke | JR | Mt. Prospect (Prospect) | 57.80 |
| 7 | LAWLOR, Declan | FR | Mt. Prospect (Prospect) | 59.20 |
| 8 | ROTH, Nathan | FR | Mt. Prospect (Prospect) | 59.90 |
| 9 | WAKIKATA, Adam | SO | Rolling Meadows | 1:01.80 |
| Lane | Athlete | Yr. | Team | Seed |
|---|---|---|---|---|
| 1 | CONNOLLY, Charlie | SO | Mt. Prospect (Prospect) | 57.80 |
| 2 | LOBUE, Anthony | SO | Mt. Prospect (Prospect) | 56.20 |
| 3 | KREMER, Erik | JR | Mt. Prospect (Prospect) | 55.80 |
| 4 | NUMANI, Jon | SO | Mt. Prospect (Prospect) | 54.90 |
| 5 | FARDELLA, Nic | SR | Mt. Prospect (Prospect) | 52.90 |
| 6 | NISHIMURA, Aidan | JR | Arlington Heights (Hersey) | 54.50 |
| 7 | WARDYNSKI, Lucas | JR | Mt. Prospect (Prospect) | 55.50 |
| 8 | KNEE, Charlie | SO | Mt. Prospect (Prospect) | 56.10 |
| 9 | CACCIABONDO, Alan | SR | Mt. Prospect (Prospect) | 57.10 |