1 | 5 | United States Grand Prix | 19 | Benetton Formula | Benetton B188 | Ford Cosworth Cosworth DFR | 3 | Physical |
2 | 7 | French Grand Prix | 19 | Benetton Formula | Benetton B189 | Ford Cosworth HB | 4 | Suspension |
3 | 9 | German Grand Prix | 19 | Benetton Formula | Benetton B189 | Ford Cosworth HB | 7 | Electrical |
4 | 10 | Hungarian Grand Prix | 19 | Benetton Formula | Benetton B189 | Ford Cosworth HB | 7 | Gearbox |
5 | 12 | Italian Grand Prix | 19 | Benetton Formula | Benetton B189 | Ford Cosworth HB | 8 | Brakes |
6 | 14 | Spanish Grand Prix | 19 | Benetton Formula | Benetton B189 | Ford Cosworth HB | 14 | Spun Off |