| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | RILEY, Joseph | 9 | Northwest (Cedar Hill) High Scho | 21.25 | Verified |
| 4 | MALONE, Bruce | 9 | Kirkwood High School | 18.96 | Verified |
| 5 | MINTER, Jordan | SO | Francis Howell North High School | 20.88 | Verified |
| 6 | GERBER, Adam | SO | Northwest (Cedar Hill) High Scho | 21.82 | Verified |
