1986 - 1987
German Formula Ford 2000, 2nd.

1988
Formula Opel Lotus Euroseries, 2 wins, 2 poles, 1 fastest lap.

1989
German Formula 3 (2 wins). Heinz-Harald became second in the championship behind Carl Wendlinger. Michael Schumacher was third.

1990 - 1991
International Formula 3000 Championship.

1990 - 1992
World Sports Prototype Championship with Sauber.

1992
Japanese Sports Prototype Championship. Japanese Formula 3000.

1993
Japanese Formula 3000. Formula 1 test driver for Mugen and Bridgestone (Tyrrell-Honda).

1994 - 1996
Formula One with Sauber.

1997
Formula One with Williams. Wins his first GP at the San Marino GP.

1998
Formula One with Williams.

1999 - 2000
Formula One with Jordan.