F1 fastest laps
Fastest laps
| # | Grand Prix | Circuit | Driver | Constructor |
|---|---|---|---|---|
| 1 | Brazil | Jacarepagua | (FRA) Alain Prost | McLaren-TAG |
| 2 | Portugal | Estoril | (BRA) Ayrton Senna | Lotus-Renault |
| 3 | San Marino | Imola | (ITA) Michele Alboreto | Ferrari |
| 4 | Monaco | Monte Carlo | (ITA) Michele Alboreto | Ferrari |
| 5 | Canada | Montreal | (BRA) Ayrton Senna | Lotus-Renault |
| 6 | Detroit | Detroit | (BRA) Ayrton Senna | Lotus-Renault |
| 7 | France | Le Castellet | (FIN) Keke Rosberg | Williams-Honda |
| 8 | Britain | Silverstone | (FRA) Alain Prost | McLaren-TAG |
| 9 | Germany | Nurburgring | (AUT) Niki Lauda | McLaren-TAG |
| 10 | Austria | Osterreichring | (FRA) Alain Prost | McLaren-TAG |
| 11 | Netherlands | Zandvoort | (FRA) Alain Prost | McLaren-TAG |
| 12 | Italy | Monza | (GBR) Nigel Mansell | Williams-Honda |
| 13 | Belgium | Spa-Francorchamps | (FRA) Alain Prost | McLaren-TAG |
| 14 | Europe | Brands Hatch | (FRA) Jacques Laffite | Ligier-Renault |
| 15 | South Africa | Kyalami | (FIN) Keke Rosberg | Williams-Honda |
| 16 | Australia | Adelaide | (FIN) Keke Rosberg | Williams-Honda |
- First fastest lap (drivers)
- Keke Rosberg (first Finnish driver to set a fastest lap)
- Last fastest lap (drivers)
- Jacques Laffite
- Niki Lauda
- Keke Rosberg
- First fastest lap (constructors)
- No constructor set their first fastest lap in 1985
- Last fastest lap (constructors)
- Ligier
- First fastest lap since…
- 1981 for Jacques Laffite, Ligier and Williams
- 1983 for Nigel Mansell and Lotus
- Last fastest lap until…
- 1987 for Ayrton Senna, Ferrari and Lotus
- 1988 for Michele Alboreto
- Last fastest lap by a…
- Finnish driver until 1997