McLaren
John Watson a terminé P11 du Championnat du Monde 1980 avec 6 points. En 13 courses : 0 victoires, 0 podiums et 0 pole positions — meilleur résultat P4.
| Round | Race | Team | Grid | Finish | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Argentine Grand Prix | McLaren | 17 | P20 | Gearbox | |
| 2 | Brazilian Grand Prix | McLaren | 23 | P11 | +1 Lap | |
| 3 | South African Grand Prix | McLaren | 21 | P11 | +2 Laps | |
| 4 | United States Grand Prix West | McLaren | 21 | P4 | 3 | +1 Lap |
| 5 | Belgian Grand Prix | McLaren | 20 |
| P13 |
| Not classified |
| 7 | French Grand Prix | McLaren | 13 | P7 | +1 Lap |
| 8 | British Grand Prix | McLaren | 12 | P8 | Engine |
| 9 | German Grand Prix | McLaren | 20 | P17 | Engine |
| 10 | Austrian Grand Prix | McLaren | 21 | P18 | Engine |
| 11 | Dutch Grand Prix | McLaren | 9 | P19 | Engine |
| 12 | Italian Grand Prix | McLaren | 14 | P19 | Wheel bearing |
| 13 | Canadian Grand Prix | McLaren | 7 | P4 | 3 | Finished |
| 14 | United States Grand Prix | McLaren | 9 | P12 | +9 Laps |