Career
During his professional career he was unable to qualify for the main draw at a Grand Slam tournament, but made two finals on the Grand Prix circuit. He partnered with countryman Hans-Dieter Beutel to finish runner-up at Cologne in 1982. The following year, Zipf reached the singles finals of the 1983 Tel Aviv Open, as an unseeded player.
He lost in the final to American Aaron Krickstein.
He later worked as a chiropractor and in 1998 treated a back injury for Pete Sampras. Doubles: (2).