| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | SANDS, Racheal | 9 | Mehlville High School | NT | Unverified: |
| 3 | HARRIS, Khloe | 9 | Incarnate Word Academy | NT | Unverified: |
| 4 | CAULEY, Megan | JR | Parkway West High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | OPARI, Maria | JR | Lindbergh High School | NT | Unverified: |
| 2 | IVANOVA, Betina | JR | Parkway West High School | NT | Unverified: |
| 3 | ALVERSON, Grace | 9 | Kirkwood High School | 1:20.70 | Verified |
| 4 | JOHNSTON, Hazel | SO | Nerinx Hall High School | 1:24.71 | Verified |
| 5 | AJKUNIC, Emira | JR | Lindbergh High School | NT | Unverified: |
| 6 | WINSTON, Erika | SO | Mehlville High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MITCHELL, Alexis | SO | Kirkwood High School | 1:14.18 | Verified |
| 2 | MARTIN, Louisa | JR | Ladue Horton Watkins High School | 1:11.93 | Verified |
| 3 | FRANKLIN, Alana | SO | Nerinx Hall High School | 1:11.59 | Verified |
| 4 | LAWLESS, Jane | 9 | Webster Groves High School | 1:11.78 | Verified |
| 5 | COMBS, Liberty | SO | Webster Groves High School | 1:12.11 | Verified |
| 6 | RODGERS, Aaliyah | 9 | Incarnate Word Academy | 1:14.52 | Verified |
