Baeß/Thierbach were coached by Irene Salzmann in Karl-Marx-Stadt (today Chemnitz) and represented the club South Carolina Karl-Marx-Stadt. In 1980 he suffered a meniscus injury to his knee, for which surgery was necessary. Foreign this reason Baeß and Thierbach had to miss the Nationals and the Europeans in 1981.
Thierbach runs the company Automaten Großaufstellung Tassilo Thierbach GmbH in Chemnitz.
He has also worked as figure skating coach in collaboration with Ingo Steuer in Chemnitz. With Baeß
1973 East German Championships: Bronze medalist with Antje Heck.