| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 4 | DEAN, Nick | Matthews | 31.50 | |
| 5 | TELLEZ, Jesus | Grayslake | 31.06 |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | SCHWARZ, Brandon | Grayslake | 31.00 | |
| 2 | BRANNICK, Dylan | Wauconda | 30.40 | |
| 3 | BROWN, Nate | Matthews | NT | |
| 4 | STEPHEN, Jacob | Lake Zurich South | NT | |
| 5 | WHELAN, Miles | Hawthorn North | 29.72 | |
| 6 | CHAVEZ, Enrique | Lake Zurich South | NT | |
| 7 | HALL, Luke | Barrington-Station Campus | NT | |
| 8 | DUBEY, D | Hawthorn South | NT |
| Lane | Athlete | Team | Seed | Note |
|---|---|---|---|---|
| 1 | MURRAY, S | Lake Zurich North | NT | |
| 2 | FERMIN, Joshua | Barrington-Station Campus | 27.31 | |
| 3 | BERRY, Jared | Barrington-Prairie Campus | 25.94 | |
| 4 | EISSLER, Hunter | Barrington-Prairie Campus | 25.92 | |
| 5 | LUTGANS, Luke | Hawthorn South | 26.40 | |
| 6 | MARTIN, Kamrin | Wauconda | 27.40 | |
| 7 | ADI, Kareem | Hawthorn North | 28.87 | |
| 8 | MARK, R. | Lake Zurich North | NT |