| «1985-15» | South Africa Grand Prix - XIX Grand Prix of South Africa |
| 1985-10-19 | Kyalami - 75 laps × 4.104 km : 307.8 km |
| Pos | Car | Driver | Constructor | Time | Speed | Lap | Gap |
|---|---|---|---|---|---|---|---|
| 1 | 6 | Keke Rosberg | Williams • Honda | 01:08.149 | 216.796 km/h | 74 | |
| 2 | 5 | Nigel Mansell | Williams • Honda | 01:08.518 | 215.628 km/h | 74 | +00.369 |
| 3 | 2 | Alain Prost | McLaren • TAG Porsche | 01:08.713 | 215.016 km/h | 56 | +00.564 |
| 4 | 18 | Thierry Boutsen | Arrows • BMW | 01:09.230 | 213.410 km/h | 63 | +01.081 |
| 5 | 1 | Niki Lauda | McLaren • TAG Porsche | 01:09.500 | 212.581 km/h | 35 | +01.351 |
| 6 | 11 | Elio de Angelis | Lotus • Renault | 01:09.960 | 211.184 km/h | 34 | +01.811 |
| 7 | 12 | Ayrton Senna | Lotus • Renault | 01:10.077 | 210.831 km/h | 7 | +01.928 |
| 8 | 17 | Gerhard Berger | Arrows • BMW | 01:10.258 | 210.288 km/h | 33 | +02.109 |
| 9 | 3 | Martin Brundle | Tyrrell • Renault | 01:10.339 | 210.046 km/h | 45 | +02.190 |
| 10 | 28 | Stefan Johansson | Ferrari | 01:10.413 | 209.825 km/h | 41 | +02.264 |
| 11 | 7 | Nelson Piquet | Brabham • BMW | 01:10.476 | 209.637 km/h | 3 | +02.327 |
| 12 | 27 | Michele Alboreto | Ferrari | 01:10.850 | 208.531 km/h | 5 | +02.701 |
| 13 | 4 | Philippe Streiff | Tyrrell • Renault | 01:11.404 | 206.913 km/h | 5 | +03.255 |
| 14 | 19 | Teo Fabi | Toleman • Hart | 01:12.035 | 205.100 km/h | 3 | +03.886 |
| 15 | 8 | Marc Surer | Brabham • BMW | 01:12.100 | 204.915 km/h | 2 | +03.951 |
| 16 | 29 | Pierluigi Martini | Minardi • Motori Moderni | 01:14.428 | 198.506 km/h | 5 | +06.279 |
| 17 | 20 | Piercarlo Ghinzani | Toleman • Hart | 01:29.450 | 165.169 km/h | 3 | +21.301 |
| 18 | 24 | Huub Rothengatter | Osella • Alfa Romeo | 01:29.792 | 164.540 km/h | 1 | +21.643 |