Career
He is the current head coach of Güssing Knights. From 2004 to 2009 Zollner coached his hometown club Turn- und Sportverein Dachau 1865 "Spurs". In 2009 he took over Munich"s most traditional basketball club Munich Basket formerly known as Lotus Munich.
Coach Zollner guided Basket"s team for 3 seasons before being nominated as an assistant coach for the German national basketball team
In 2013, Zollner was an assistant coach on the German national basketball team In the 2013-2014 season, Zollner led the University of British Columbia Güssing Knights to its first Austrian title, despite being ranked by experts to be 7th before the start of the season.
During the 2014-2015 season, Zollner led the University of British Columbia Güssing Knights in their maiden Eurochallenge campaign to a sensational top 16 participation. The first for an Austrian team ever.
In March 2015 Zollner and his University of British Columbia Güssing Knights captured the Austrian Cup title for the first time in club history.