| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | TRUONG, Tyler | JR | Vianney High School | NT | Unverified: |
| 2 | GONZALEZ, Christian | SO | Priory High School | NT | Unverified: |
| 3 | JONES, LHANDON | 9 | Bishop DuBourg High School | 1:15.39 | Verified |
| 4 | TANKSLEY, Mekhi | SR | Priory High School | 1:00.78 | Verified |
| 5 | ROTGER FONSECA, Pedro | SO | St. Francis Borgia High School | 1:02.48 | Verified |
| 6 | FIELDS, Derek | JR | Chaminade College Preparatory Sc | NT | Unverified: |
| 7 | FLOYD, Latrell | 9 | Bishop DuBourg High School | NT | Unverified: |
| 8 | GARRETT, John | 9 | Vianney High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | CLEMONS, Ravonne | JR | Althoff Catholic High School | 59.45 | Verified |
| 2 | MIZE, John | JR | Althoff Catholic High School | 58.00 | Unverified: |
| 3 | LIERMAN, Harry | 9 | Chaminade College Preparatory Sc | 57.60 | Unverified: Marianist Invitational |
| 4 | DUBOSE, Doreon | SO | Christian Brothers College High | 54.64 | Verified |
| 5 | HENDRICKS, Amar'e | 9 | Christian Brothers College High | 55.70 | Verified |
| 6 | SCOTT, Elias | SO | St. Louis University High School | 57.70 | Unverified: |
| 7 | PEUGNET, Luis | SR | DeSmet Jesuit High School | 58.20 | Unverified: |
| 8 | FILLA, Sebastian | 9 | St. Francis Borgia High School | 59.90 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | HANLON, Brody | SR | St. Ignatius College Prep High S | 54.02 | Verified |
| 2 | MAYER, Steffan | JR | St. Louis University High School | 53.80 | Verified |
| 3 | WASHINGTON, Farand | JR | St. Mary's (St. Louis) High Scho | 52.47 | Unverified: Marianist Meet |
| 4 | MALMSTROM, Matthew | SO | Helias Catholic High School | 52.08 | Verified |
| 5 | CASSEUS, Daimond | SR | St. Mary's (St. Louis) High Scho | 52.16 | Verified |
| 6 | DITSCH, Alexander | JR | St. Ignatius College Prep High S | 53.73 | Verified |
| 7 | TAYLOR, Brian | SR | DeSmet Jesuit High School | 53.80 | Unverified: |
| 8 | KNERNSCHIELD, Harrison | SO | Helias Catholic High School | 54.33 | Verified |
