| Place | Performance | Athlete | Team |
| 1 | 0:47.92 | Q: SWARTS - RENALDINHO | BOLAND ATHLETICS |
| 2 | 0:48.01 | Q: THOMAS - HILTON | ATHLETICS GAUTENG NORTH |
| 3 | 0:48.40 | Q: MAWELA - SOLETHU | ATHLETICS NORTHWEST NORTH |
| 4 | 0:48.55 | q: PIENAAR - JACQUES | ATHLETICS CENTRAL NORTHWEST |
| 5 | 0:48.78 | -: DU PLESSIS - JUAN | BORDER ATHLETICS |
| 6 | 0:48.81 | -: BOIKHUTSO - TSHIAMO | KWAZULU-NATAL ATHLETICS |
| 7 | 0:48.85 | -: BRIEL - DANIEL | ATHLETICS CENTRAL NORTHWEST |
| 8 | 0:49.52 | -: GROBLER - HENDRIK | ATHLETICS GAUTENG NORTH |