1 | 5 | United States Grand Prix | 19 | Alessandro Nannini | Benetton B188 | Ford Cosworth Cosworth DFR | 3 | Physical |
2 | 7 | French Grand Prix | 19 | Alessandro Nannini | Benetton B189 | Ford Cosworth HB | 4 | Suspension |
3 | 9 | German Grand Prix | 19 | Alessandro Nannini | Benetton B189 | Ford Cosworth HB | 7 | Electrical |
4 | 9 | German Grand Prix | 20 | Emanuele Pirro | Benetton B189 | Ford Cosworth HB | 9 | Spun Off |
5 | 10 | Hungarian Grand Prix | 19 | Alessandro Nannini | Benetton B189 | Ford Cosworth HB | 7 | Gearbox |
6 | 12 | Italian Grand Prix | 19 | Alessandro Nannini | Benetton B189 | Ford Cosworth HB | 8 | Brakes |
7 | 12 | Italian Grand Prix | 20 | Emanuele Pirro | Benetton B189 | Ford Cosworth HB | 9 | Transmission |
8 | 13 | Portuguese Grand Prix | 20 | Emanuele Pirro | Benetton B189 | Ford Cosworth HB | 16 | Suspension |
9 | 14 | Spanish Grand Prix | 19 | Alessandro Nannini | Benetton B189 | Ford Cosworth HB | 14 | Spun Off |
10 | 14 | Spanish Grand Prix | 20 | Emanuele Pirro | Benetton B189 | Ford Cosworth HB | 10 | Spun Off |
11 | 15 | Japanese Grand Prix | 20 | Emanuele Pirro | Benetton B189 | Ford Cosworth HB | 22 | Collision |