Brabham
Stefano Modena a terminé P18 du Championnat du Monde 1989 avec 4 points. En 16 courses : 0 victoires, 1 podium et 0 pole positions — meilleur résultat P3.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Brazilian Grand Prix | Brabham | 14 | P22 | Halfshaft | |
| 2 | San Marino Grand Prix | Brabham | 17 | P20 | Spun off | |
| 3 | Monaco Grand Prix | Brabham | 8 | P3 | 4 | +1 Lap |
| 4 | Mexican Grand Prix | Brabham | 9 | P10 | +1 Lap | |
| 5 | United States Grand Prix | Brabham | 7 |
| P17 |
| Brakes |
| 6 | Canadian Grand Prix | Brabham | 7 | P23 | Accident |
| 7 | French Grand Prix | Brabham | 22 | P15 | Engine |
| 8 | British Grand Prix | Brabham | 14 | P19 | Engine |
| 9 | German Grand Prix | Brabham | 16 | P13 | Engine |
| 10 | Hungarian Grand Prix | Brabham | 8 | P11 | +1 Lap |
| 11 | Belgian Grand Prix | Brabham | 8 | P24 | Handling |
| 12 | Italian Grand Prix | Brabham | — | P27 | Disqualified |
| 13 | Portuguese Grand Prix | Brabham | 11 | P14 | +2 Laps |
| 14 | Spanish Grand Prix | Brabham | 12 | P24 | Electrical |
| 15 | Japanese Grand Prix | Brabham | 9 | P13 | Engine |
| 16 | Australian Grand Prix | Brabham | 8 | P8 | +6 Laps |