March → Williams
Lella Lombardi a terminé P21 du Championnat du Monde 1975 avec 0.5 points. En 11 courses : 0 victoires, 0 podiums et 0 pole positions — meilleur résultat P6.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 3 | South African Grand Prix | March | 26 | P23 | Fuel system | |
| 4 | Spanish Grand Prix | March | 24 | P6 | 0.5 | +2 Laps |
| 6 | Belgian Grand Prix | March | 17 | P18 | Engine | |
| 7 | Swedish Grand Prix | March | 24 | P26 | Fuel system | |
| 8 | Dutch Grand Prix | March | 23 | P14 |
| +5 Laps |
| 9 | French Grand Prix | March | 26 | P18 | +4 Laps |
| 10 | British Grand Prix | March | 22 | P23 | Engine |
| 11 | German Grand Prix | March | 25 | P7 | Finished |
| 12 | Austrian Grand Prix | March | 21 | P17 | +3 Laps |
| 13 | Italian Grand Prix | March | 24 | P16 | Accident |
| 14 | United States Grand Prix | Williams | 24 | P24 | Ignition |