| «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 | Grid | Car | Driver | Constructor | Q1 | Q2 | Best | Gap | Interval |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 5 | Nigel Mansell | Williams • Honda | 01:03.188 | 01:02.366 | 01:02.366 | 236.898 km/h | |
| 2 | 2 | 7 | Nelson Piquet | Brabham • BMW | 01:03.844 | 01:02.490 | 01:02.490 | +00.124 (+0.199%) | +00.124 |
| 3 | 3 | 6 | Keke Rosberg | Williams • Honda | 01:03.073 | 01:02.504 | 01:02.504 | +00.138 (+0.221%) | +00.014 |
| 4 | 4 | 12 | Ayrton Senna | Lotus • Renault | 01:04.517 | 01:02.825 | 01:02.825 | +00.459 (+0.736%) | +00.321 |
| 5 | 5 | 8 | Marc Surer | Brabham • BMW | 01:05.411 | 01:04.088 | 01:04.088 | +01.722 (+2.761%) | +01.263 |
| 6 | 6 | 11 | Elio de Angelis | Lotus • Renault | 01:04.611 | 01:04.129 | 01:04.129 | +01.763 (+2.827%) | +00.041 |
| 7 | 7 | 19 | Teo Fabi | Toleman • Hart | 01:06.083 | 01:04.215 | 01:04.215 | +01.849 (+2.965%) | +00.086 |
| 8 | 8 | 1 | Niki Lauda | McLaren • TAG Porsche | 01:05.357 | 01:04.283 | 01:04.283 | +01.917 (+3.074%) | +00.068 |
| 9 | 9 | 2 | Alain Prost | McLaren • TAG Porsche | 01:05.757 | 01:04.376 | 01:04.376 | +02.010 (+3.223%) | +00.093 |
| 10 | 10 | 18 | Thierry Boutsen | Arrows • BMW | 01:05.079 | 01:04.518 | 01:04.518 | +02.152 (+3.451%) | +00.142 |
| 11 | 11 | 17 | Gerhard Berger | Arrows • BMW | 01:06.546 | 01:04.780 | 01:04.780 | +02.414 (+3.871%) | +00.262 |
| 12 | 12 | 22 | Riccardo Patrese | Alfa Romeo | 01:06.386 | 01:04.948 | 01:04.948 | +02.582 (+4.140%) | +00.168 |
| 13 | 13 | 20 | Piercarlo Ghinzani | Toleman • Hart | 01:07.800 | 01:05.114 | 01:05.114 | +02.748 (+4.406%) | +00.166 |
| 14 | 14 | 23 | Eddie Cheever | Alfa Romeo | 01:07.159 | 01:05.260 | 01:05.260 | +02.894 (+4.640%) | +00.146 |
| 15 | 15 | 27 | Michele Alboreto | Ferrari | 01:05.268 | 01:05.757 | 01:05.268 | +02.902 (+4.653%) | +00.008 |
| 16 | 16 | 28 | Stefan Johansson | Ferrari | 01:05.406 | 01:05.388 | 01:05.388 | +03.022 (+4.846%) | +00.120 |
| 17 | 17 | 3 | Martin Brundle | Tyrrell • Renault | 01:06.709 | 01:05.649 | 01:05.649 | +03.283 (+5.264%) | +00.261 |
| 18 | 33 | Alan Jones | Lola • Hart | 01:07.144 | 01:05.731 | 01:05.731 | +03.365 (+5.396%) | +00.082 | |
| 19 | 18 | 4 | Philippe Streiff | Tyrrell • Renault | 01:07.935 | 01:06.205 | 01:06.205 | +03.839 (+6.156%) | +00.474 |
| 20 | 19 | 29 | Pierluigi Martini | Minardi • Motori Moderni | 01:10.025 | 01:08.658 | 01:08.658 | +06.292 (+10.089%) | +02.453 |
| 21 | 20 | 24 | Huub Rothengatter | Osella • Alfa Romeo | 01:09.904 | 01:09.873 | 01:09.873 | +07.507 (+12.037%) | +01.215 |