Race Result
| GP n. 312 - 01/10/1978 - Grand Prix of the United States Watkins Glen International |
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| Winner: | Carlos Reutemann / Ferrari - 1:40'48.800 | ||||||
| Pole Position: | Mario Andretti / Lotus-Ford - 1:38.114 | ||||||
| Fastest Lap: | Jean Pierre Jarier / Lotus-Ford - 1:39.557 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 11 |  Carlos Reutemann |
Ferrari | 59 | 1:40'48.800 | 2 | 9 |
| 2 | 27 |  Alan Jones |
Williams-Ford | 59 | +19.739 | 3 | 6 |
| 3 | 20 |  Jody Scheckter |
Wolf-Ford | 59 | +45.701 | 11 | 4 |
| 4 | 15 |  Jean Pierre Jabouille |
Renault | 59 | + 1'25.007 | 9 | 3 |
| 5 | 14 |  Emerson Fittipaldi |
Fittipaldi-Ford | 59 | + 1'28.089 | 13 | 2 |
| 6 | 8 | Patrick Tambay |
McLaren-Ford | 59 | + 1'50.210 | 18 | 1 |
| 7 | 7 |  James Hunt |
McLaren-Ford | 58 | + 1 lap | 6 | 0 |
| 8 | 22 |  Derek Daly |
Ensign-Ford | 58 | + 1 lap | 19 | 0 |
| 9 | 31 | Rene Arnoux |
Martini-Ford | 58 | + 1 lap | 21 | 0 |
| 10 | 3 | Didier Pironi |
Tyrrell-Ford | 58 | + 1 lap | 16 | 0 |
| 11 | 26 | Jacques Laffite |
Ligier-Matra | 58 | + 1 lap | 10 | 0 |
| 12 | 21 |  Bobby Rahal |
Wolf-Ford | 58 | + 1 lap | 20 | 0 |
| 13 | 23 | Brett Lunger |
Ensign-Ford | 58 | + 1 lap | 24 | 0 |
| 14 | 17 |  Clay Regazzoni |
Shadow-Ford | 56 | + 3 laps | 17 | 0 |
| 15 | 55 | Jean Pierre Jarier |
Lotus-Ford | 55 | out of fuel | 8 | 0 |
| 16 | 36 |  Rolf Stommelen |
Arrows-Ford | 54 | + 5 laps | 22 | 0 |
| Ret | 37 |  Arturo Merzario |
Merzario-Ford | 46 | gear box | 26 | 0 |
| Ret | 9 |  Michael Bleekemolen |
ATS-Ford | 43 | oil leak | 25 | 0 |
| Ret | 1 |  Niki Lauda |
Brabham-Alfa Romeo | 28 | engine | 5 | 0 |
| Ret | 5 | Mario Andretti |
Lotus-Ford | 27 | engine | 1 | 0 |
| Ret | 2 | John Watson |
Brabham-Alfa Romeo | 25 | engine | 7 | 0 |
| Ret | 4 | Patrick Depailler |
Tyrrell-Ford | 23 | wheel | 12 | 0 |
| Ret | 12 |  Gilles Villeneuve |
Ferrari | 22 | engine | 4 | 0 |
| Ret | 10 |  Keke Rosberg |
ATS-Ford | 21 | transmission | 15 | 0 |
| Ret | 16 | Hans Joachim Stuck |
Shadow-Ford | 1 | fuel system | 14 | 0 |
| Ret | 25 |  Hector Rebaque |
Lotus-Ford | 0 | clutch | 23 | 0 |
| Dnq | 19 | Beppe Gabbiani |
Surtees-Ford | did not qualify | 0 | ||