[1] Wöhrmann had a win over world number nine Jakob Hlasek en route to a semi-final exit at the Stuttgart Outdoor tournament in 1989.

[2] Now ranked in the top 100, Wöhrmann gained direct entry into the 1990 Australian Open, his first Grand Slam appearance.

[2] He defeated Soviet player Andres Võsand in the opening round, then lost in four sets to Lars-Anders Wahlgren.

[2] In the 1990 BMW Open he had two big wins, over Yannick Noah (for the second time in his career) and countryman Carl-Uwe Steeb.

[2] Also that year, Wöhrmann represented West Germany in a Davis Cup tie against Argentina in Buenos Aires.