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| Full name: | John Marshall Watson |
| Nationality: | British |
| Date of Birth: | Saturday, 4 May 1946 |
| Age: | 67 years, 14 days |
| Place of birth: | Belfast, Northern Ireland |
| Debut: | 1973 British Grand Prix |
| Active years: | 1973 – 1983, 1985 (12) |
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| Rd | Date | Grand Prix | Constructor | Car | Grid | Race | Points | Champ. Points | Rank |
| 1 | 25 Jan | Brazil | Penske-Ford Cosworth | PC3 | 8 | Ret | 0 | 0 | NC |
| 2 | 6 Mar | South Africa | Penske-Ford Cosworth | PC3 | 3 | 5 | 2 | 2 | 8 |
| 3 | 28 Mar | United States West | Penske-Ford Cosworth | PC3 | 9 | NC | 0 | 2 | 10 |
| 4 | 2 May | Spain | Penske-Ford Cosworth | PC3 | 13 | Ret | 0 | 2 | 13 |
| 5 | 16 May | Belgium | Penske-Ford Cosworth | PC3 | 17 | 7 | 0 | 2 | 12 |
| 6 | 30 May | Monaco | Penske-Ford Cosworth | PC3 | 17 | 10 | 0 | 2 | 12 |
| 7 | 13 Jun | Sweden | Penske-Ford Cosworth | PC4 | 17 | Ret | 0 | 2 | 12 |
| 8 | 4 Jul | France | Penske-Ford Cosworth | PC4 | 8 | 3 | 4 | 6 | 8 |
| 9 | 18 Jul | Great Britain | Penske-Ford Cosworth | PC4 | 11 | 3 | 4 | 10 | 6 |
| 10 | 1 Aug | Germany | Penske-Ford Cosworth | PC4 | 19 | 7 | 0 | 10 | 7 |
| 11 | 15 Aug | Austria | Penske-Ford Cosworth | PC4 | 2 | 1 | 9 | 19 | 5 |
| 12 | 29 Aug | Netherlands | Penske-Ford Cosworth | PC4 | 4 | Ret | 0 | 19 | 6 |
| 13 | 12 Sep | Italy | Penske-Ford Cosworth | PC4 | 27 | 11 | 0 | 19 | 7 |
| 14 | 3 Oct | Canada | Penske-Ford Cosworth | PC4 | 14 | 10 | 0 | 19 | 7 |
| 15 | 10 Oct | United States | Penske-Ford Cosworth | PC4 | 8 | 6 | 1 | 20 | 6 |
| 16 | 24 Oct | Japan | Penske-Ford Cosworth | PC4 | 4 | Ret | 0 | 20 | 7 |