162 FinalResults Boys 16 400m
| Place | Performance | Athlete | Team |
| 1 | 0:49.86 | DIAGO - AFRICA | TUKS INVITATIONAL |
| 2 | 0:50.07 | LEWELLYN - HARMSE | MONUMENT |
| 3 | 0:50.15 | NHLAPO - NKOSINATHI | KING EDWARD VIII |
| 4 | 0:50.25 | FRASER - WJ | HTS MIDDELBURG A |
| 5 | 0:51.03 | VAN NIEKERK - STEFAN | MENLOPARK SEUNS B |
| 6 | 0:51.10 | VAN ASWEGEN - RIWAN | WATERKLOOF A |
| 7 | 0:51.64 | FOURIE - RUBEN | MENLOPARK SEUNS B |
| 8 | 0:51.72 | TOLLIG - LANDER | TUKS INVITATIONAL |
| 9 | 0:52.01 | MASHITENG - NKANYISO | SECUNDA BOYS |
| 10 | 0:52.34 | NHLAPO - SIBONGA | PRESTIGE COLLEGE BOYS A |
| 11 | 0:52.50 | VAN DER WALT - MARCUS | TUKS INVITATIONAL |
| 12 | 0:53.22 | KOTSI - ITUMELENG | BENONI BOYS |
| 13 | 0:53.41 | BOSHOMAN - KUTLOANO | TUKS INVITATIONAL |
| 14 | 0:53.52 | KOKONG - TSHEGO | FOURWAYS |
| 15 | 0:53.73 | VAN DER WALT - JANNES | BRITS |
| 16 | 0:53.90 | KOZANA - MPUMELELO | RANDFONTEIN |
| 17 | 0:54.24 | SWANEPOEL - NIEL | TUKS INVITATIONAL |
| 18 | 0:54.39 | VAN VUUREN - JUSTIN | AFFIES SEUNS |
| 19 | 0:54.50 | SCHUTTE - PAUL | DIE ANKER |
| 20 | 0:54.53 | BESTER - FRANCO | TUKS INVITATIONAL |
| 21 | 0:54.60 | CLAASENS - NICKY | DR MALAN B |
| 22 | 0:55.04 | JOSEPH - ETHAN | SUTHERLAND A |
| 23 | 0:55.16 | MAUER - KYLE | WONDERBOOM A |
| 24 | 0:55.62 | DE JAGER - PZ | TUKS INVITATIONAL |
| 25 | 0:55.72 | VISSER - ANDR | WESVALIA B |
| 26 | 0:57.83 | CONRADIE - TJ | PIETERSBURG |
| 27 | 0:59.65 | SIMELANE - NJABULO | AMBERFIELD |
| 27 | 0:59.65 | STROEBEL - ELIJAH | BENONI BOYS |
| 29 | 1:00.90 | MUDZUNGA - ZWI | PRETORIA BOYS HIGH B |
| 30 | 1:03.35 | THANTSHA - BONOLO | KRUGERSDORP |
| 31 | 1:03.91 | MASBIGIRI - PHUMUDZO | AMANDASIG |