| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | BOONE, AMIR | SO | Bishop DuBourg High School | 1:23.09 | Verified |
| 4 | ROTGER FONSECA, Pedro | SO | St. Francis Borgia High School | 1:02.48 | Verified |
| 5 | ADAMS, CHANCELLOR | JR | Bishop DuBourg High School | 1:03.81 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | NUNN, Jordan | 9 | Duchesne High School | 59.70 | Verified |
| 3 | FILLA, Sebastian | 9 | St. Francis Borgia High School | 58.77 | Verified |
| 4 | KOENIG, Samuel | SO | St. Dominic High School | 57.05 | Verified |
| 5 | BETHANY, Jackson | SO | Lutheran (St. Charles) High Scho | 58.00 | Verified |
| 6 | VIET, Dominic | SO | Father Tolton Regional Catholic | 59.60 | Verified |
| 7 | POWELL-KENNER, Gregory | JR | Duchesne High School | 1:00.17 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | PENNING, Jared | SO | St. Dominic High School | 56.74 | Verified |
| 2 | WASHINGTON, Farand | JR | St. Mary's (St. Louis) High Scho | 56.39 | Verified |
| 3 | SCHROER, Judah | 9 | Christian High School | 54.48 | Verified |
| 4 | JOHNSON, Bruce | JR | Cardinal Ritter High School | 51.07 | Verified |
| 5 | CASSEUS, Daimond | SR | St. Mary's (St. Louis) High Scho | 52.16 | Verified |
| 6 | MCFIELD, Mekhi | SO | Cardinal Ritter High School | 55.43 | Unverified: |
| 7 | RING, Austin | SR | Christian High School | 56.52 | Verified |
| 8 | JOHNSON, Kaiden | SO | Lutheran (St. Charles) High Scho | 56.81 | Verified |
