| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | MOLINA, Hayden | 9 | Christian High School | NT | Unverified: |
| 4 | MATLICK, Cole | JR | Timberland High School | NT | Unverified: |
| 5 | PATEL, Shalin | JR | Ft. Zumwalt East High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | GUERRERO, Ian | SR | St. Charles West High School | 1:02.03 | Verified |
| 3 | GUERRERO, Bryan | SO | Warrenton High School | 1:01.43 | Verified |
| 4 | CAMPBELL, Andrew | SO | Northwest (Cedar Hill) High Scho | 58.48 | Verified |
| 5 | SCHUMACHER, Brady | 9 | Ft. Zumwalt South High School | 1:00.18 | Verified |
| 6 | HARTLEY, Sean | SO | Francis Howell North High School | 1:02.00 | Unverified: |
| 7 | CURRAN, Jack | 9 | Holt High School | NT | Unverified: |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MORRIS, Zach | SO | Francis Howell Central High Scho | 57.05 | Verified |
| 2 | BALLARD, Ryley | SR | Troy Buchanan High School | 54.33 | Verified |
| 3 | KINION, Landon | SO | Francis Howell Central High Scho | 54.26 | Verified |
| 4 | LOLLAR, Ethan | SO | Troy Buchanan High School | 53.94 | Verified |
| 5 | BATES, Owen | SO | Ft. Zumwalt South High School | 54.08 | Verified |
| 6 | CARR, Evan | SR | Ft. Zumwalt West High School | 54.29 | Verified |
| 7 | BENNETT, Davion | SR | Ft. Zumwalt North High School | 54.80 | Verified |
| 8 | RING, Austin | SR | Christian High School | 57.05 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MOZEE, Mikah | JR | Holt High School | 53.39 | Verified |
| 2 | POLITTE, Braedyn | JR | St. Charles West High School | 52.58 | Verified |
| 3 | MCLAUGHLIN, Liam | SR | Timberland High School | 52.35 | Verified |
| 4 | ANDERSON, Tyler | SO | Ft. Zumwalt East High School | 51.48 | Verified |
| 5 | MILLER, Brayden | JR | Ft. Zumwalt North High School | 51.81 | Verified |
| 6 | ALEXANDER, Devon | SO | Francis Howell North High School | 52.43 | Unverified: |
| 7 | GRELLNER, Justin | SR | Northwest (Cedar Hill) High Scho | 53.29 | Verified |
| 8 | ELEY, Matthew | JR | Ft. Zumwalt West High School | 53.54 | Verified |
