| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | HOETTE, Andy | SR | Ft. Zumwalt East High School | NT | Unverified: |
| 4 | MEHTA, Aadit | SO | Francis Howell Central High Scho | 1:03.04 | Verified |
| 5 | STOCK, David | FR | Francis Howell Central High Scho | 1:08.60 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | SHERMAN, Ayden | FR | North Point High School | 1:01.54 | Verified |
| 3 | WYBLE, Jacob | JR | Troy Buchanan High School | 59.06 | Verified |
| 4 | BETHANY, Jackson | JR | Lutheran (St. Charles) High Scho | 57.00 | Verified |
| 5 | MAHLER, Thomas | JR | Troy Buchanan High School | 57.00 | Unverified: |
| 6 | BUCKNER, Jazzy | SR | Soldan International Studies Hig | 59.36 | Verified |
| 7 | HALSEY, Jesse | FR | North Point High School | 1:01.80 | Verified |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | MCROBERT, Keshaun | JR | Soldan International Studies Hig | 55.52 | Verified |
| 2 | BATES, Owen | JR | Ft. Zumwalt South High School | 53.67 | Verified |
| 3 | LIND, Isaac | JR | Lutheran (St. Charles) High Scho | 52.97 | Verified |
| 4 | ANDERSON, Tyler | JR | Ft. Zumwalt East High School | 50.78 | Verified |
| 5 | POLITTE, Braedyn | SR | St. Charles West High School | 51.10 | Verified |
| 6 | SALAMONE, Jadon | SO | St. Charles High School | 53.04 | Verified |
| 7 | BASS, Luke | JR | Ft. Zumwalt South High School | 54.76 | Verified |
| 8 | REID, Charles | SO | St. Charles High School | 57.00 | Unverified: |