Career
He and team mate Peter Gartmayer represented Austria at the 2008 Summer Olympics in Beijing, China. Although he qualified for the 2004 Summer Olympics, an injury kept him out and he was replaced by Florian Gosch. On October 21, 2011, Doppler and Mellitzer announced their split.
He and Horst did team up for the 2012 Summer Olympics, where they were eliminated in the preliminary round.