| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 3 | Whale Branch Early College | A | Polite | Powell | Holman | Greene | NT |
| 4 | Hanahan | A | Shepard | Rivera | Reyes | Parson | NT |
| 5 | Colleton County | A | Allen | Griffin | Holmes | Simmons | NT |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 2 | Woodland | B | Kelly | Sheppard | Adgerson | Lemon | 49.00 |
| 3 | Wade Hampton-Hampton | B | Dobson | Green | Williams | Solomon | DQ |
| 4 | Stratford | B | Harrison | Koffi | Gearld | Roberts | 44.90 |
| 5 | Waccamaw | A | Wilson | Propps | Robinson | Blye | DQ |
| 6 | Battery Creek | A | Singleton | Simmons | McDaniel | Smalls | DNF |
| 7 | Bluffton | A | Ransburg | Golfphin | Grant | Simmons | DNF |
| Lane | Team | Squad | Athlete 1 | Athlete 2 | Athlete 3 | Athlete 4 | Seed |
|---|---|---|---|---|---|---|---|
| 1 | Fort Dorchester | A | Pulliam | Pasley | Chavis | White | 45.38 |
| 2 | Ashley Ridge | A | Law | Jefferson-York | Huger | Bachelor | DQ |
| 3 | Woodland | A | West | Brown | Clark | Goodwin | DNF |
| 4 | Stratford | A | Waring | Jordan | Martino | Jones | 43.00 |
| 5 | Summerville | A | 43.10 | ||||
| 6 | Wade Hampton-Hampton | A | Clemons | Davis | Gillison | Priester | 44.50 |
| 7 | Cane Bay | A | Espinal | Hughes | Roberts | Varner | 45.00 |
| 8 | Philip Simmons | A | Woolridge | Greene | Mack-Davis | Minus | 45.51 |