Career
Pirkner played for several clubs, including Schalke 04 (1969–1971), Austria Wien (1974–1978) and First Vienna Football Club. When at Schalke, he was fined for two years due to his involvement in the 1971 Bundesliga scandal. The ban was however lifted by the ÖFB after a year. He ended his professional career after the 1978 World Cup Finals.
He earned 20 caps, scoring four goals.