Section 1 of 2
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 2 | Clayton High School | A | Shah | Wang | Dayal | Mohr | NT | Unverified: |
| 3 | Webster Groves High School | A | Hepfinger | Nieman | Moore | Blackford | 4:56.00 | Unverified: |
| 4 | Mehlville High School | A | Burch | Escamilla | Nguyen | Kimberlin | 5:01.69 | Verified |
Section 2 of 2
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 1 | Lafayette (Wildwood) High School | A | 4:50.00 | Unverified: | ||||
| 2 | Kirkwood High School | A | Burgett | Wilkes | McClure | Gross | 4:35.60 | Unverified: |
| 3 | Nerinx Hall High School | A | Franklin | MacDonald | Rega | Loida | 4:18.26 | Verified |
| 4 | Lindbergh High School | A | Krueger | Heuer | Prouty | Hartley | 4:34.71 | Verified |
| 5 | Ladue Horton Watkins High School | A | Cohen | Strickland | Martin | Schnitzer | 4:36.00 | Unverified: |
| 6 | Marquette High School | A | MACIARIELLO | Bunderson | CLARK | Barton | 4:50.00 | Unverified: |
