Laszlo Szollas and skating partner Emilia Rotter won four World Figure Skating Championships: 1931 in Berlin, 1933 in Stockholm, 1934 in Helsinki, and 1935 in Budapest. In 1932, they won the World Championships silver medal in Montreal.

The Hungarian pair also won Olympic bronze medals in 1932 and 1936. In European competitions, Szollas and Rotter won championships in 1934 in Prague and silver medals in 1930 in Vienna and 1931 in St. Moritz.

Szollas was also a prominent European sports doctor.