| Name | Team | Time | NISCA | Imp | |||
|---|---|---|---|---|---|---|---|
| 1 | Sophia Vilim |
 Jones-Payton College Prep
|
1:06.51 | 34 | +0.9% | PB | |
| 2 | Rachael Apter |
 Sandburg
|
1:14.05 | – | – | ||
| 3 | Francesca Figlioli |
 Maine South
|
1:27.04 | – | +1.5% | PB | |
| 4 | Aimee Dragas |
 Downers Grove South
|
1:33.86 | – | +2.3% | PB | |
| 1 | Sam Peters |
 Richwoods
|
1:38.07 | – | +0.4% | PB | |
| 2 | Ana Kohout |
 Lake Forest
|
1:49.38 | – | +1.2% | PB | |