| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 3 | MARTINEZ, Dominic | New Lenox (Lincoln-Way Centr | 1:01.55 |
| 4 | LOCKWOOD, Cody | Bradley (B.-Bourbonnais) | 1:01.06 |
| 5 | COLLADO, Jermaine | Palos Hills (Stagg) | 1:01.18 |
| 6 | CONRAD, Carson | Orland Park (Sandburg) | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | PALAFOX, Jonathan | Tinley Park (Andrew) | 59.64 |
| 2 | GUZMAN, Xavier | Bolingbrook | 57.38 |
| 3 | MCGREAL, Brendan | New Lenox (Lincoln-Way West) | 56.63 |
| 4 | JOHNSON II, Christopher | Flossmoor (Homewood-F.) | 56.27 |
| 5 | WORSLEY, Jon | Frankfort (Lincoln-Way East) | 56.46 |
| 6 | HARRIS JR, Anthony | Frankfort (Lincoln-Way East) | 57.10 |
| 7 | GLOVER, Brendan | New Lenox (Lincoln-Way Centr | 59.55 |
| 8 | GONZALES, James | Palos Hills (Stagg) | 59.89 |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | RADTKE, Jack | Tinley Park (Andrew) | 55.74 |
| 2 | BIRK, Kyron | Bradley (B.-Bourbonnais) | 54.47 |
| 3 | SMITH, Kourtney | Flossmoor (Homewood-F.) | 53.00 |
| 4 | NICHOLSON, Michael | Lockport (Twp.) | 51.66 |
| 5 | ANKOMAH, Edmond | Bolingbrook | 51.95 |
| 6 | MERTENS, Jack | Lockport (Twp.) | 54.03 |
| 7 | WOLF, Brandon | New Lenox (Lincoln-Way West) | 55.14 |
| 8 | DIXON, Nasir | Orland Park (Sandburg) | 56.02 |