| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 3 | Central (Cape Girardeau) High Sc | B | Williams | Edmundson | Pilgram | Jackson | NT | Unverified: |
| 4 | Ste. Genevieve High School | A | Harmon | Asher | Kohler | Jerman | NT | Unverified: |
| 5 | Notre Dame (Cape Girardeau) High | A | Huck | Brotherton | DeShaney | White | NT | Unverified: |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 1 | Saxony Lutheran High School | A | Yunck | Lewis | Thomason | Ford | NT | Unverified: |
| 2 | Ewing Marion Kauffman School | A | Brown | Stone-Hill | Rowe | Rowe | NT | Unverified: |
| 3 | Jackson High School | B | Callis | GROSS | Jessell | Golinski | 2:02.00 | Unverified: |
| 5 | Dexter High School | A | Stromas | Nea | Pennington | Lloyd | 2:00.00 | Unverified: |
| 6 | Scott City High School | A | 2:06.00 | Unverified: | ||||
| 7 | Rockwood Summit High School | B | Thier | Fountain | Stasa | Patton | NT | Unverified: |
| 8 | Herculaneum High School | B | Christopher | Duncan | Howell | Robinson | NT | Unverified: |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed | Note |
|---|---|---|---|---|---|---|---|---|
| 1 | Festus High School | B | DQ | Unverified: | ||||
| 2 | DeSoto High School | A | 1:52.25 | Unverified: | ||||
| 3 | Jackson High School | A | DENT | Metzger | Goetz | Williams | 1:52.00 | Unverified: |
| 4 | Rockwood Summit High School | A | Jackson | Larson | Grimshaw | Barafundi | 1:51.00 | Unverified: na |
| 5 | Festus High School | A | Biehle | Gillam | DeClue | Fitzgerald | 1:51.15 | Unverified: |
| 6 | Central (Cape Girardeau) High Sc | A | Mackins | Moss | Watkins | Bogan | 1:52.00 | Unverified: |
| 7 | Malden High School | A | Sims | Jackson | Hill | Mathies | 1:54.00 | Unverified: |
| 8 | Herculaneum High School | A | Lawson | Hawkins | Bray | Moore | 2:00.00 | Unverified: |