| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | GRIFFIN, Jalen | SO | Northwest (Cedar Hill) High Scho | NT | Unverified: |
| 2 | COLE, Bobby | FR | Hazelwood East High School | NT | Unverified: |
| 3 | ABELLANA, Sean | FR | Maplewood-Richmond Hts. High Sch | NT | Unverified: |
| 4 | WILLIAMS, Richard | FR | Northwest (Cedar Hill) High Scho | 54.31 | Verified |
| 5 | WMS-SANDERS, JAMELLE | SO | Marquette High School | 59.89 | Verified |
| 6 | HAWTHORNE, David | JR | Ladue Horton Watkins High School | NT | Unverified: |
| 7 | CREECH, Caleb | FR | Marquette High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MCPETERS, Ty'reek | SO | Lafayette (Wildwood) High School | 52.91 | Verified |
| 2 | GERBER, Adam | SR | Northwest (Cedar Hill) High Scho | 51.47 | Verified |
| 3 | LUDBROOK, Henry | SO | Kirkwood High School | 50.41 | Verified |
| 4 | WOLLAEGER, Leo | SO | Kirkwood High School | 49.44 | Verified |
| 5 | LANEY, TORRY | SO | Lafayette (Wildwood) High School | 49.70 | Verified |
| 6 | HAYES JR, JEFFERY | SO | Lafayette (Wildwood) High School | 51.00 | Unverified: |
| 7 | MCGHEE, Jalen | SO | Riverview Gardens High School | 51.74 | Verified |
| 8 | OMENI-NZEWUIHE, Ozichi | SR | Parkway West High School | 53.54 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | COHEN, Adam | SO | Kirkwood High School | 48.60 | Verified |
| 2 | CODY, Dj | SO | Vashon High School | 47.60 | Unverified: |
| 3 | WATSON, Kamron | SO | Hazelwood East High School | 46.72 | Verified |
| 4 | LEOPANDO, ROMEO | JR | Marquette High School | 45.08 | Verified |
| 5 | PINEX, Jeremiah | SO | Ladue Horton Watkins High School | 45.54 | Verified |
| 6 | BAKER, Jeff | JR | Parkway West High School | 46.89 | Verified |
| 7 | MCCLAIN, Darrion | FR | Riverview Gardens High School | 47.62 | Verified |
| 8 | JONES, Emanuel | SO | Ft. Zumwalt North High School | 49.06 | Verified |