Has Jo Siffert won an F1 championship?
Joseph Siffert has not won a Formula 1 World Drivers' Championship as of 2026. Their best championship finish is 5th place.
Championship standings by season
Frequently asked
Has Jo Siffert won a Formula 1 championship?
Joseph Siffert has not won a Formula 1 World Drivers' Championship as of 2026. Their best championship finish is 5th place.
What is Jo Siffert's best championship finish?
Jo Siffert's best Formula 1 championship finish is 5th place, in 1971.