| AQ | 2018 Additional Qualifier | 50.54 |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 4 | Redford Thurston | A | DQ |
| 5 | Birmingham Seaholm | A | 53.10 |
| 6 | Livonia Stevenson | A | 53.80 |
| 7 | Beverly Hills Groves | A | 54.96 |
| Lane | Team | Squad | Seed |
|---|---|---|---|
| 1 | Southfield Arts & Tech | A | 52.90 |
| 2 | Farmington Hills Harrison | A | 52.50 |
| 3 | Farmington Hills Mercy | A | 52.12 |
| 4 | West Bloomfield | A | 50.70 |
| 5 | Oak Park | A | 47.51 |
| 6 | Detroit Renaissance | A | 47.54 |
| 7 | Farmington | A | 51.40 |
| 8 | North Farmington | A | 52.25 |
| 9 | Royal Oak | A | 52.57 |