F1 Championship leaders
Drivers’ Championship
| # | Grand Prix | Leader | Lead |
|---|---|---|---|
| 1 | Argentina | (FRA) Jacques Laffite | 3 |
| 2 | Brazil | (FRA) Jacques Laffite | 8 |
| 3 | South Africa | (FRA) Jacques Laffite | 6 |
| 4 | USA West | (CAN) Gilles Villeneuve | 2 |
| 5 | Spain | (CAN) Gilles Villeneuve | 0 |
| 6 | Belgium | (FRA) Jacques Laffite | 0 |
| 7 | Monaco | (ZAF) Jody Scheckter | 6 |
| 8 | France | (ZAF) Jody Scheckter | 4 |
| 9 | Britain | (ZAF) Jody Scheckter | 6 |
| 10 | Germany | (ZAF) Jody Scheckter | 7 |
| 11 | Austria | (ZAF) Jody Scheckter | 6 |
| 12 | Netherlands | (ZAF) Jody Scheckter | 8 |
| 13 | Italy | (ZAF) Jody Scheckter | 13 |
| 14 | Canada | (ZAF) Jody Scheckter | 7 |
| 15 | USA | (ZAF) Jody Scheckter | 4 |
- First time as championship leader
- Jacques Laffite
- Gilles Villeneuve (first Canadian driver to lead the championship)
- Last time as championship leader
- Jacques Laffite
- Jody Scheckter
- Gilles Villeneuve
- First time as championship leader since…
- 1977 for Jody Scheckter
- First time as championship leader by a…
- South African driver since 1977
- Last time as championship leader by a…
- Canadian driver until 1997
Constructors’ Championship
| # | Grand Prix | Leader | Lead |
|---|---|---|---|
| 1 | Argentina | Ligier-Ford Cosworth | 4 |
| 2 | Brazil | Ligier-Ford Cosworth | 15 |
| 3 | South Africa | Ligier-Ford Cosworth | 9 |
| 4 | USA West | Ferrari | 4 |
| 5 | Spain | Ligier-Ford Cosworth | 2 |
| 6 | Belgium | Ferrari | 1 |
| 7 | Monaco | Ferrari | 8 |
| 8 | France | Ferrari | 14 |
| 9 | Britain | Ferrari | 15 |
| 10 | Germany | Ferrari | 14 |
| 11 | Austria | Ferrari | 19 |
| 12 | Netherlands | Ferrari | 19 |
| 13 | Italy | Ferrari | 33 |
| 14 | Canada | Ferrari | 29 |
| 15 | USA | Ferrari | 38 |
- First time as championship leader
- Ligier
- Last time as championship leader
- Ligier
- First time as championship leader since…
- 1977 for Ferrari