In 1977 he partnered Ulrich Marten in the men's doubles at the Wimbledon Championships and ended the year by winning a tour event in Zurich, with Nikola Pilić.

It was again Pinner that he partnered with when he played West Germany's doubles rubber in Budapest, a four set loss to Hungarian players Péter Szőke and Balázs Taróczy.

[2] In 1979 he had the best singles performance of his career when he made the semi-finals in Bogota, with wins over Andrés Gómez, Iván Molina and Roger Guedes.

The Swedes had a 2–0 lead going into the doubles and Probst and his partner Rolf Gehring needed a win to keep the tie alive, which they did with a straight sets victory, over the Swedish pairing of Per Hjertquist and Stefan Simonsson, before Björn Borg ended West Germany's campaign in the reverse singles.

[4] On the Grand Prix circuit in 1980 he was runner-up in the doubles at the German Open and had another win over Andrés Gómez, en route to the quarter-finals of the singles event at the 1980 Stuttgart Indoor.