| «1978-15» | USA East Grand Prix - XXI United States Grand Prix |
| 1978-10-01 | Watkins Glen - Watkins Glen International - 59 laps × 5.435 km : 320.665 km |
| Pos | Qualy | Car | Driver | Constructor |
|---|---|---|---|---|
| 1 | 1 | 5 | Mario Andretti | Lotus • Ford Cosworth |
| 2 | 2 | 11 | Carlos Reutemann | Ferrari |
| 3 | 3 | 27 | Alan Jones | Williams • Ford Cosworth |
| 4 | 4 | 12 | Gilles Villeneuve | Ferrari |
| 5 | 5 | 1 | Niki Lauda | Brabham • Alfa Romeo |
| 6 | 6 | 7 | James Hunt | McLaren • Ford Cosworth |
| 7 | 7 | 2 | John Watson | Brabham • Alfa Romeo |
| 8 | 8 | 55 | Jean-Pierre Jarier | Lotus • Ford Cosworth |
| 9 | 9 | 15 | Jean-Pierre Jabouille | Renault |
| 10 | 10 | 26 | Jacques Laffite | Ligier • Matra |
| 11 | 11 | 20 | Jody Scheckter | Wolf • Ford Cosworth |
| 12 | 12 | 4 | Patrick Depailler | Tyrrell • Ford Cosworth |
| 13 | 13 | 14 | Emerson Fittipaldi | Copersucar • Ford Cosworth |
| 14 | 14 | 16 | Hans Joachim Stuck | Shadow • Ford Cosworth |
| 15 | 15 | 10 | Keke Rosberg | ATS • Ford Cosworth |
| 16 | 16 | 3 | Didier Pironi | Tyrrell • Ford Cosworth |
| 17 | 17 | 17 | Clay Regazzoni | Shadow • Ford Cosworth |
| 18 | 18 | 8 | Patrick Tambay | McLaren • Ford Cosworth |
| 19 | 19 | 22 | Derek Daly | Ensign • Ford Cosworth |
| 20 | 20 | 21 | Bobby Rahal | Wolf • Ford Cosworth |
| 21 | 21 | 18 | René Arnoux | Surtees • Ford Cosworth |
| 22 | 22 | 36 | Rolf Stommelen | Arrows • Ford Cosworth |
| 23 | 23 | 25 | Hector Rebaque | Lotus • Ford Cosworth |
| 24 | 24 | 23 | Brett Lunger | Ensign • Ford Cosworth |
| 25 | 25 | 9 | Michael Bleekemolen | ATS • Ford Cosworth |
| 26 | 26 | 37 | Arturo Merzario | Merzario • Ford Cosworth |