Zolder · Heusden-Zolder, Belgium
Mario Andretti won the 1978 Belgian Grand Prix for Team Lotus, finishing 9.900 seconds ahead of Ronnie Peterson (Team Lotus), with Carlos Reutemann (Ferrari) completing the podium. Andretti had also started from pole position.
It was round 6 of 16 of the 1978 Formula 1 World Championship, held at Zolder in Heusden-Zolder, Belgium on 21 May 1978.
After round 6, Mario Andretti led the 1978 drivers' championship on 27 points, 4 ahead of Patrick Depailler. Team Lotus led the constructors' standings on 36 points.
The 1978 Belgian Grand Prix took place on 21 May 1978. It was round 6 of 16 of the 1978 Formula 1 calendar.
The 1978 Belgian Grand Prix was held at Zolder in Heusden-Zolder, Belgium.
Mario Andretti won the 1978 Belgian Grand Prix for Team Lotus, ahead of and .
| Pos | Driver | Time / gap | Pts |
|---|---|---|---|
| 1 | 1:39:52.020 |
Mario Andretti (Team Lotus) started from pole position.
Gunnar Nilsson won the 1977 Belgian Grand Prix at Zolder for Team Lotus.
| 9 |
| 2 | +9.900 | 6 |
| 3 | +24.340 | 4 |
| 4 | +47.040 | 3 |
| 5 | Accident | 2 |
| 6 | +1 Lap | 1 |
| 7 | +1 Lap | – |
| 8 | +1 Lap | – |
| 9 | +2 Laps | – |
| 10 | +2 Laps | – |
| 11 | +2 Laps | – |
| 12 | +6 Laps | – |
| 13 | Engine | – |
| R | Spun off | – |
| R | Not classified | – |
| R | Spun off | – |
| R | Gearbox | – |
| R | Transmission | – |
| R | Suspension | – |
| R | Spun off | – |
| R | Accident | – |
| R | Accident | – |
| R | Accident | – |
| R | Accident | – |