Section 1 of 2
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 3 | RILEY, Bailey | 9 | Winfield High School | NT | Unverified: |
| 4 | TEROY, Michael | JR | Warrenton High School | 1:09.84 | Verified |
| 5 | LOPEZ, Alejandro | 9 | St. Charles High School | 1:12.63 | Verified |
Section 2 of 2
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | WIRT, Anthony | SO | St. Charles High School | 1:05.54 | Verified |
| 3 | GUERRERO, Ian | JR | St. Charles West High School | 1:03.40 | Unverified: FHC Quad |
| 4 | HAYES, Robert | 9 | St. Charles High School | 1:00.96 | Verified |
| 5 | WOZNIAK, Gaige | 9 | Orchard Farm High School | 1:01.59 | Verified |
| 6 | KIRKS, Cole | 9 | Orchard Farm High School | 1:05.27 | Verified |
| 7 | LEACH, Andrew | 9 | St. Charles West High School | 1:09.53 | Verified |
