Career
Koch learned her first triple jumps with coach Ingeburg Walter at the Dresdner European Commission. Later she was coached by Ingrid Lehmann in Berlin. She represented the German Democratic Republic and her club was South Carolina Einheit Berlin. In 1984, she was awarded the silver medal at the World Junior Championships, placing behind another East German, Karin Hendschke.
She placed 4th at the 1985 European Championships.
She was sent to the 1988 Winter Olympics and placed 9th. In 1989, Koch was one of the favourites for the European Championships but she lost the qualifying competition in East Germany versus Evelyn Großmann and Simone Language.
In 1992 and 1993, following German reunification, Koch attempted to qualify for international championships but was unsuccessful.
