Career
Ullerich played for Rot-Weiss Kölane In 1951 he made his debut in the German national hockey team At the 1952 Olympics, the team retired in the quarterfinals against the later Olympic Second from the Netherlands.
On his third Olympic participation in 1960 in Rome Ullerich defeated the German team in the quarterfinals later Olympic champions from Pakistan and finished seventh.In total, Ullerich worked from 1951 to 1961 with in 58 international matches.