Alongside Marion Knobba and Helga Ulze, they won bronze with the K-4 500 m.[24][25] In the 1964 season Nüßner teamed up with Charlotte Marquardt (née Seidelmann) for the K-2 500 m. At a regatta in Poznan, Marquardt and Nüßner came first.[26] With 1964 an Olympic year, inner-German contests had to be held for the qualifications to the United Team of Germany. Marquardt and Nüßner caused a sensation when they beat the reigning champions, Annemarie Zimmermann and Roswitha Esser, at the first regatta held on the Mittelland Canal at the Rothensee boat lift.[27] At the second Olympic qualifying regatta in Duisburg the East Germans could not repeat their performance and were beaten by both West German teams.