Glaß, who is not related to fellow East German jumper Henry Glaß of the 1970s, started training as jumper in 1952, and became a member of the GDR-team in 1953. A change in style after 1954 helped him win the medal in 1956. The ski jump career of the Volkspolizei police man, GDR champion of 1954, 1955, 1956 and 1958, ended in 1960 due to a fall during Vierschanzentournee at Bergiselschanze. A later attempt for a comeback failed. He died in Rodewisch in December 1997.