Krabbe was a successful track star, winning the 100 m and 200 m titles in the 1990 European Athletics Championships (held in Split) and the same titles at the 1991 World Championships in Athletics (held in Tokyo, where she beat Gwen Torrence and Merlene Ottey).

She was also part of the winning 4 × 100 metres relay East German women's team in the European Championships.

In 1992, Krabbe along with teammates Silke Möller and Grit Breuer tested positive for the stimulant clenbuterol.

Krabbe sued the IAAF and received damages (1.2 million DM), while Breuer did not and was able to compete again after the ban.

The suspension kept Krabbe from competing in the 1992 Summer Olympics, and effectively ended her athletic career.