Playing career
Kuhnke was born in Berlin on 13 April 1939 and in 1959 completed a bank apprenticeship in Hamburg. With Wilhelm Bungert he was the leading German player for more than fifteen years. He won the German doubles championship in 1959, 1962 and 1963, reached the Australian quarter-finals in 1961 and, with Bungert, the 1962 French doubles final, which they lost to Roy Emerson and Neale Fraser 6-3, 6-4, 7-5. He reached the Wimbledon quarter-finals in 1963 and 1964, and Lance Tingay ranked him eighth in the world for 1964.
He played on into the open era. In 1969 he won at Eastbourne, beating Manuel Orantes 6-4, 2-6, 9-7 in the final, and in 1970 he won in Kingston, Jamaica. That year he and Bungert took West Germany to the Davis Cup final, which they lost 5-0 to the United States; it was the best German Davis Cup result to that date, and he received the Silver Laurel Leaf, the federal sports award. He retired in 1974, took a doctorate in law and practised as a lawyer in Munich.
On grass
Every grass title: 1
Show every title, tournament by tournament
Leading grass titles only: the grass majors, tour-level grass events since 1968 and the leading grass championships before 1968. †single source; ‡ sources disagree. Roll of champions