| Place | Performance | Athlete | Team |
| 1 | 42.10 | GUNTER - ISABELLA | ATHLETICS GAUTENG NORTH |
| 2 | 42.94 | MARTHINUSSEN - CUBIN | BOLAND ATHLETICS |
| 3 | 43.12 | BOUWER - KARLA | ATHLETICS GAUTENG NORTH |
| 4 | 43.31 | NIEMAN - MEGAN | ATHLETICS GAUTENG NORTH |
| 5 | 43.31 | KIRKPATRICK - JANELLE | ATHLETICS GAUTENG NORTH |
| 6 | 43.45 | LOGGENBERG - CHRISTI | ATHLETICS GAUTENG NORTH |
| 7 | 44.67 | BOTES - ANIKA | ATHLETICS CENTRAL NORTHWEST |
| 8 | 46.32 | BOTHA - MIENKE | ATHLETICS FREE STATE |