| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 3 | Northwest (Cedar Hill) High Scho | A | Brandt | Gerber | Bounds | Poskin | NT | Unverified: |
| 4 | Hazelwood Central High School | A | Price | Lewis | Jones | Webster | 4:31.61 | Verified |
| 5 | Parkway North High School | A | Hauck | Weaver | Parker | Williams | NT | Unverified: |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 2 | Francis Howell North High School | A | Allen | Dowdy | Eiland | Vob Orb | 1:45.44 | Unverified: |
| 3 | Lafayette (Wildwood) High School | A | Marshall | Smith | LOCHMANN | Ems | 1:40.00 | Unverified: |
| 4 | Hazelwood East High School | A | Cain-Shockley | Hill | Williams | Sledge | 1:36.80 | Unverified: |
| 5 | Riverview Gardens High School | A | Abel | Carlock | Crymes | Loggins | 1:39.00 | Unverified: |
| 6 | Jackson High School | A | Alley | Settle | Cain | Alspaugh | 1:40.00 | Unverified: |
| 7 | Marquette High School | A | BONNETT | ELLIS | LUTZENBERGER | Jones | 1:54.00 | Unverified: |