In July 1960, Nüßner and Seidelmann won an international regatta at Langer See in the K-2 500 m. This counted towards the Olympic pre-qualification[18] but only Seidelmann went to the final qualification regatta for the United Team of Germany and became a reserve for the K-2 500 m team of Therese Zenz and Ingrid Hartmann.[19] At the 1961 international regatta in Grünau, Nüßner and Seidelmann won the K-2 500 m, beaten the favourites from Poland. In the K-1 500 m, Nüßner came first and Seidelmann was second.[20] At the 1961 Canoe Sprint European Championships in Poznań, Poland, Nüßner and Seidelmann came fourth in the K-2 500 m.[21] In December 1961, Nüßner was given a Master of Sport award.[22] At an international regatta in Prague in August 1962, Nüßner came seventh in the K-1 500 m (Seidelmann came fifth) and in the K-2 500 m, Nüßner and Seidelmann came fourth.[23]