| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 2 | FARMER, Nolan | SO | Hillside (Proviso West) | NT | 
| 3 | SATKIEWICZ, Nick | FR | Richmond (R.-Burton) | 1:03.24 | 
| 4 | CORPUZ, Nathaniel | SR | Franklin Park-Northlake (Leyden) | 1:03.04 | 
| 5 | HOFFMAN, Willem | FR | Lombard (Glenbard East) | 1:03.34 | 
| Lane | Athlete | Yr. | Team | Seed | 
|---|---|---|---|---|
| 1 | ANDERSON, Tyler | JR | Hoffman Estates (Conant) | NT | 
| 2 | BRYANT, Tim | SR | Hoffman Estates (H.S.) | 57.97 | 
| 3 | AMARTEIFIO, Ethan | SO | Zion (Z.-Benton) | 55.56 | 
| 4 | KATSOGIANOS, Andrew | JR | Mt. Prospect (Prospect) | NT | 
| 5 | WIKOFF, Carter | FR | Minooka | 55.27 | 
| 6 | SKARIAH, Justin | SO | Park Ridge (Maine South) | 57.03 | 
| 7 | ALLMAN, Reece | SO | Glen Ellyn (Glenbard West) | 58.10 | 
| 8 | OPPONG, Samuel | FR | Park Ridge (Maine East) | 1:02.05 |