| AQ | 2018 Additional Qualifier | 3:27.00 |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 4 | North Farmington | A | 3:48.30 |
| 5 | Livonia Stevenson | A | 3:39.19 |
| 6 | Farmington | A | 3:40.00 |
| 7 | Redford Thurston | A | DNS |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 1 | Berkley | A | 3:36.00 |
| 2 | Brother Rice | A | DNS |
| 3 | Southfield Arts & Tech | A | 3:32.10 |
| 4 | Detroit Renaissance | A | 3:30.00 |
| 5 | Oak Park | A | 3:23.01 |
| 6 | Birmingham Seaholm | A | 3:28.90 |
| 7 | Detroit U-D Jesuit | A | 3:31.00 |
| 8 | Royal Oak | A | 3:32.13 |
| 9 | West Bloomfield | A | 3:33.02 |