F1 Championship leaders
Drivers’ Championship
| # | Grand Prix | Leader | Lead |
|---|---|---|---|
| 1 | Argentina | (BRA) Emerson Fittipaldi | 3 |
| 2 | Brazil | (BRA) Emerson Fittipaldi | 8 |
| 3 | South Africa | (BRA) Emerson Fittipaldi | 3 |
| 4 | Spain | (BRA) Emerson Fittipaldi | 12 |
| 5 | Belgium | (BRA) Emerson Fittipaldi | 7 |
| 6 | Monaco | (BRA) Emerson Fittipaldi | 4 |
| 7 | Sweden | (BRA) Emerson Fittipaldi | 2 |
| 8 | France | (GBR) Jackie Stewart | 1 |
| 9 | Britain | (GBR) Jackie Stewart | 1 |
| 10 | Netherlands | (GBR) Jackie Stewart | 10 |
| 11 | Germany | (GBR) Jackie Stewart | 15 |
| 12 | Austria | (GBR) Jackie Stewart | 21 |
| 13 | Italy | (GBR) Jackie Stewart | 21 |
| 14 | Canada | (GBR) Jackie Stewart | 17 |
| 15 | USA | (GBR) Jackie Stewart | 16 |
- First time as championship leader
- No driver led the championship for the first time in 1973
- Last time as championship leader
- Jackie Stewart
- Last time as championship leader by a…
- British driver until 1976
Constructors’ Championship
| # | Grand Prix | Leader | Lead |
|---|---|---|---|
| 1 | Argentina | Lotus-Ford Cosworth | 3 |
| 2 | Brazil | Lotus-Ford Cosworth | 6 |
| 3 | South Africa | Lotus-Ford Cosworth | 1 |
| 4 | Spain | Lotus-Ford Cosworth | 4 |
| 5 | Belgium | Tyrrell-Ford Cosworth | 1 |
| 6 | Monaco | Tyrrell-Ford Cosworth | 4 |
| 7 | Sweden | Tyrrell-Ford Cosworth | 2 |
| 8 | France | Lotus-Ford Cosworth | 1 |
| 9 | Britain | Lotus-Ford Cosworth | 5 |
| 10 | Netherlands | Tyrrell-Ford Cosworth | 4 |
| 11 | Germany | Tyrrell-Ford Cosworth | 12 |
| 12 | Austria | Tyrrell-Ford Cosworth | 9 |
| 13 | Italy | Tyrrell-Ford Cosworth | 3 |
| 14 | Canada | Lotus-Ford Cosworth | 1 |
| 15 | USA | Lotus-Ford Cosworth | 10 |
- First time as championship leader
- No constructor led the championship for the first time in 1973
- Last time as championship leader
- Tyrrell