Not to be confused with Willem Ruis.Willem Duys (17 August 1928 – 2 June 2011) was a Dutch radio and television presenter, commentator, tennis player and music producer.Duys was born in Bussum. Having made the final NK Older Youth (Van Lennep Cup) in 1946, he won the Spieghel Hilversum and Heide B tournament, took the semi-finals Plaswijck Kralingen and won the B tournament in Rotterdam.