[1][2] Koch competed in badminton at the 1992 Summer Olympics in men's singles.
He lost in the second round to Wong Wai Lap, of Hong Kong, 17-18, 15-6, 15-3.
Koch played the 2007 BWF World Championships in men's singles, and was defeated in the first round by Anup Sridhar, of India, 21-15, 21-19.
He won more than 20 titles at the Austrian National Badminton Championships.
This biographical article relating to Austrian badminton is a stub.