Highest percentage of wins in a season
| Driver | Nationality | Season | Entries | Wins | Percentage | |
| 1 | Alberto Ascari | Italian | 1952 | 8 | 6 | 75% |
| 2 | Michael Schumacher | German | 2004 | 18 | 13 | 72% |
| 3 | Jim Clark | British | 1963 | 10 | 7 | 70% |
| 4 | Juan Manuel Fangio | Argentinian | 1954 | 9 | 6 | 67% |
| 5 | Michael Schumacher | German | 2002 | 17 | 11 | 65% |
| 6 | Jim Clark | British | 1965 | 10 | 6 | 60% |
| 7 | Juan Manuel Fangio | Argentinian | 1955 | 7 | 4 | 57% |
| 8 | Nigel Mansell | British | 1992 | 16 | 9 | 56% |
| 9 | Albero Ascari | Italian | 1953 | 9 | 5 | 56% |
| 10 | Jackie Stewart | British | 1969 | 11 | 6 | 54% |
| 10 | Jackie Stewart | British | 1971 | 11 | 6 | 54% |
