173 FinalResults Boys 17 400m
| Place | Performance | Athlete | Team |
| 1 | 0:48.64 | MAHLANGU - SIHLE | POTCHEFSTROOM GIM |
| 2 | 0:48.74 | FRASER - WJ | HTS MIDDELBURG A |
| 3 | 0:49.32 | VAN ZYL - ROUX | HELPMEKAAR KOLLEGE GOUD |
| 4 | 0:49.70 | VISSER - ANDRE | WESVALIA |
| 5 | 0:49.75 | HARMSE - LEWELLYN | MONUMENT YELLOW |
| 6 | 0:49.80 | NHLAPO - NKOSINATHI | KING EDWARD |
| 7 | 0:49.81 | AFRIKHA - DIAGO | MONUMENT BLUE |
| 8 | 0:50.48 | VAN ASWEGEN - RIWAN | WATERKLOOF A |
| 9 | 0:50.50 | VAN DER WALT - MARCUS | HANS STRIJDOM |
| 10 | 0:50.94 | VAN NIEKERK - STEFAN | MENLOPARK SEUNS B |
| 11 | 0:51.03 | SWANEPOEL - NIEL | MENLOPARK SEUNS B |
| 12 | 0:51.49 | TOLLIG - LANDER | AFFIES SEUNS B |
| 13 | 0:51.96 | MASEKO - NHLAKANIPHO | VORENTOE |
| 14 | 0:52.26 | MATABANE - NTHATI | HTS TOM NAUDE |
| 15 | 0:52.42 | JACOBS - MJ | DINAMIKA |
| 16 | 0:53.60 | MAUER - KYLE | WONDERBOOM HS |
| 17 | 0:54.12 | NEL - REINHARDT | MENLOPARK SEUNS B |
| 18 | 0:54.40 | STOCKENSTROM - HEINZ | GREY COLLEGE |
| 19 | 0:54.51 | COERTZE - JAMIN | WATERKLOOF SEUNS |
| 20 | 0:54.60 | TALJAARD - RUAN | WESVALIA |
| 21 | 0:54.65 | KALABA - TSHEPO | AMBERFIELD COLLEGE |
| 22 | 0:55.28 | SELEPE - TSHEPO | ERASMUS |
| 23 | 0:56.65 | THANTSHA - BONOLO | KRUGERSDORP |
| 24 | 0:59.05 | DUBE - ITUMELENG | TUKS INDIVIDUALS |
| 25 | 0:59.31 | KOTSOE - KATLEGO | SOUTHDOWNS COLLEGE |
| 26 | 1:04.00 | MAHARAJ - SOHAN | ST BENEDICTS COLLEGE |