| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | MCCURDY, Matthew | SO | Parkway West High School | 55.88 | Verified |
| 3 | HARDY, Maxwell | SO | Mehlville High School | 51.89 | Verified |
| 4 | BIAYI, Isaac | JR | Ritenour High School | 52.55 | Verified |
| 5 | LORD, Cooper | 9 | Lindbergh High School | 1:05.95 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | PINEX, Jeremiah | 9 | Ladue Horton Watkins High School | 51.04 | Verified |
| 2 | HAWTHORNE, David | SO | Ladue Horton Watkins High School | 50.43 | Verified |
| 3 | COHEN, Adam | 9 | Kirkwood High School | 50.13 | Verified |
| 4 | WALTER, Jacob | SO | Kirkwood High School | 50.32 | Verified |
| 5 | CHAVEZ, Thomas | 9 | Lindbergh High School | 50.62 | Verified |
| 6 | JONES, Brendan | JR | St. Louis University High School | 51.04 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MCCLURE, Jordan | SO | Webster Groves High School | 49.74 | Verified |
| 2 | MITCHELL, Elijah | JR | Ritenour High School | 48.21 | Verified |
| 3 | KELLER, Colin | 9 | Chaminade College Preparatory Sc | 46.80 | Unverified: Rams Mini Meet |
| 4 | HAAKE, Corvin | SR | Webster Groves High School | 46.81 | Verified |
| 5 | KALETKA, Andrew | 9 | Mehlville High School | 48.85 | Verified |
| 6 | MAYER, Steffan | JR | St. Louis University High School | 49.99 | Unverified: |
