21 mai 1978 Circuit de Zolder | Longueur : 4.262 km
| Pts | n° | Pilote | Châssis | Moteur | Pneus | Tours | Temps | Écart | Qualifications | Meilleur tour | ||||
| 1 | 9 | 5 | Mario Andretti (USA) | Team Lotus 79 | Ford Cosworth DFV | Goodyear | 70 | 1:39'52.02 | 1 | 1'20.90 | 3 | 1'23.45 | ||
| 2 | 6 | 6 | Ronnie Peterson (SWE) | Team Lotus 78 | Ford Cosworth DFV | Goodyear | 70 | 1:40'01.92 | +9.90 | 7 | 1'22.62 | 1 | 1'23.13 | (66) |
| 3 | 4 | 11 | Carlos Reutemann (ARG) | Ferrari 312T3 | Ferrari 312B | Michelin | 70 | 1:40'16.36 | +24.34 | 2 | 1'21.69 | 7 | 1'24.27 | |
| 4 | 3 | 12 | Gilles Villeneuve (CAN) | Ferrari 312T3 | Ferrari 312B | Michelin | 70 | 1:40'39.06 | +47.04 | 4 | 1'21.77 | 4 | 1'23.73 | |
| 5 | 2 | 26 | Jacques Laffite (FRA) | Ligier JS7/9 | Matra MS78 | Goodyear | 69 | +1 tour | 14 | 1'23.90 | 6 | 1'23.95 | ||
| 6 | 1 | 3 | Didier Pironi (FRA) | Tyrrell 008 | Ford Cosworth DFV | Goodyear | 69 | +1 tour | 23 | 1'24.85 | 19 | 1'25.59 | ||
| 7 | 30 | Brett Lunger (USA) | McLaren M26 | Ford Cosworth DFV | Goodyear | 69 | +1 tour | 24 | 1'24.99 | 17 | 1'25.34 | |||
| 8 | 33 | Bruno Giacomelli (ITA) | McLaren M26 | Ford Cosworth DFV | Goodyear | 69 | +1 tour | 21 | 1'24.81 | 9 | 1'24.35 | |||
| 9 | 31 | René Arnoux (FRA) | Martini MK23 | Ford Cosworth DFV | Goodyear | 68 | +2 tours | 19 | 1'24.28 | 20 | 1'26.13 | |||
| 10 | 27 | Alan Jones (AUS) | Williams FW06 | Ford Cosworth DFV | Goodyear | 68 | +2 tours | 11 | 1'23.71 | 10 | 1'24.46 | |||
| 11 | 9 | Jochen Mass (GER) | ATS HS1 | Ford Cosworth DFV | Goodyear | 68 | +2 tours | 16 | 1'24.14 | 21 | 1'26.30 | |||
| 12 | 22 | Jacky Ickx (BEL) | Ensign N177 | Ford Cosworth DFV | Goodyear | 64 | +6 tours | 22 | 1'24.82 | 15 | 1'25.18 | |||
| 13 | 19 | Vittorio Brambilla (ITA) | Surtees TS20 | Ford Cosworth DFV | Goodyear | 63 | +7 tours | 12 | 1'23.78 | 2 | 1'23.38 | |||
| Non classées | ||||||||||||||
| -- | 15 | Jean-Pierre Jabouille (FRA) | Renault RS01 | Renault EF1 | Michelin | 56 | 10 | 1'23.58 | 11 | 1'24.68 | ||||
| Abandon(s) | ||||||||||||||
| sortie de piste | 16 | Hans-Joachim Stuck (GER) | Shadow DN9 | Ford Cosworth DFV | Goodyear | 56 | 20 | 1'24.47 | 8 | 1'24.29 | ||||
| sortie de piste | 20 | Jody Scheckter (RSA) | Wolf WR5 | Ford Cosworth DFV | Goodyear | 53 | 5 | 1'22.12 | 5 | 1'23.92 | ||||
| boîte de vitesses | 4 | Patrick Depailler (FRA) | Tyrrell 008 | Ford Cosworth DFV | Goodyear | 51 | 13 | 1'23.82 | 16 | 1'25.24 | ||||
| transmission | 17 | Clay Regazzoni (SUI) | Shadow DN9 | Ford Cosworth DFV | Goodyear | 40 | 18 | 1'24.18 | 18 | 1'25.50 | ||||
| suspension | 35 | Riccardo Patrese (ITA) | Arrows FA1 | Ford Cosworth DFV | Goodyear | 31 | 8 | 1'23.25 | 13 | 1'25.05 | ||||
| sortie de piste | 36 | Rolf Stommelen (GER) | Arrows FA1 | Ford Cosworth DFV | Goodyear | 26 | 17 | 1'24.14 | 12 | 1'25.01 | ||||
| accident | 2 | John Watson (GBR) | Brabham BT46 | Alfa Romeo 115-12 | Goodyear | 18 | 9 | 1'23.26 | 14 | 1'25.14 | ||||
| accident | 1 | Niki Lauda (AUT) | Brabham BT46 | Alfa Romeo 115-12 | Goodyear | 0 | 3 | 1'21.70 | ||||||
| accident | 7 | James Hunt (GBR) | McLaren M26 | Ford Cosworth DFV | Goodyear | 0 | 6 | 1'22.50 | ||||||
| accident | 14 | Emerson Fittipaldi (BRA) | Fittipaldi F5A | Ford Cosworth DFV | Goodyear | 0 | 15 | 1'24.11 | ||||||
| Non qualifié | ||||||||||||||
| -- | 18 | Rupert Keegan (GBR) | Surtees TS20 | Ford Cosworth DFV | Goodyear | 1'25.40 | ||||||||
| -- | 24 | Derek Daly (IRL) | Hesketh 308E | Ford Cosworth DFV | Goodyear | 1'25.69 | ||||||||
| -- | 32 | Keke Rosberg (FIN) | Theodore TR1 | Ford Cosworth DFV | Goodyear | 1'25.87 | ||||||||
| -- | 10 | Alberto Colombo (ITA) | ATS HS1 | Ford Cosworth DFV | Goodyear | 1'26.01 | ||||||||
| Non pré-qualifiés | ||||||||||||||
| -- | 25 | Hector Rebaque (MEX) | Team Lotus 78 | Ford Cosworth DFV | Goodyear | 1'25.10 | ||||||||
| -- | 37 | Arturo Merzario (ITA) | Merzario A1 | Ford Cosworth DFV | Goodyear | 1'26.69 | ||||||||