Jackie Stewart won the South African Grand Prix 1973 at Kyalami on 3 March 1973, starting from P16 on the grid. Peter Revson finished second for McLaren, with Emerson Fittipaldi completing the podium for Team Lotus.
| Pos | Grid | Driver | Team | Laps | Time / Status | Pts | FL |
|---|---|---|---|---|---|---|---|
| 1 | 16 | Jackie StewartSTE | Tyrrell | 79 | 1:43:11.07 | 9 | |
| 2 | 6 | Peter RevsonREV | McLaren | 79 | +24.55 | 6 | |
| 3 | 2 | Emerson FittipaldiFIT | Team Lotus | 79 | +25.06 | 4 | |
| 4 | 15 | Arturo MerzarioMER | Ferrari | 78 | +1 Lap | 3 | |
| 5 | 1 | Denny HulmeHUL | McLaren | 77 | +2 Laps | 2 | |
| 6 | 21 | George FollmerFOL | Shadow | 77 | +2 Laps | 1 | |
| 7 | 8 | Carlos ReutemannREU | Brabham | 77 | +2 Laps | 0 | |
| 8 | 20 | Andrea de AdamichDEA | Surtees | 77 | +2 Laps | 0 | |
| 9 | 3 | Jody ScheckterSCH | McLaren | 75 | Engine | 0 | |
| 10 | 19 | Howden GanleyGAN | Iso Marlboro | 73 | +6 Laps | 0 | |
| 11 | 4 | Ronnie PetersonPET | Team Lotus | 73 | +6 Laps | 0 | |
| R | 9 | Carlos PacePAC | Surtees | 69 | Accident | 0 | |
| N | 22 | Eddie KeizanKEI | Tyrrell | 67 | Not classified | 0 | |
| N | 18 | Jean-Pierre JarierJAR | March | 66 | Not classified | 0 | |
| N | 25 | François CevertCEV | Tyrrell | 66 | Not classified | 0 | |
| N | 23 | Mike BeuttlerBEU | March | 65 | Not classified | 0 | |
| R | 17 | Wilson FittipaldiFIT | Brabham | 52 | Gearbox | 0 | |
| R | 24 | Jackie PretoriusPRE | Iso Marlboro | 35 | Overheating | 0 | |
| R | 10 | Niki LaudaLAU | BRM | 26 | Engine | 0 | |
| R | 14 | Jackie OliverOLI | Shadow | 14 | Engine | 0 | |
| R | 7 | Jean-Pierre BeltoiseBEL | BRM | 4 | Clutch | 0 | |
| R | 13 | Dave CharltonCHA | Team Lotus | 3 | Accident | 0 | |
| R | 5 | Clay RegazzoniREG | BRM | 2 | Accident | 0 | |
| R | 11 | Jacky IckxICK | Ferrari | 2 | Accident | 0 | |
| R | 12 | Mike HailwoodHAI | Surtees | 2 | Accident | 0 |