Career
He competed at the 1932 and 1936 Summer Olympics and finished in 7th and 12th place, respectively. Jansson held Swedish titles in the hammer throw in 1931, 1933-1935 and 1937 and in the weight throw in 1929-1931, 1933-1935, 1937 and 1938.
He competed at the 1932 and 1936 Summer Olympics and finished in 7th and 12th place, respectively. Jansson held Swedish titles in the hammer throw in 1931, 1933-1935 and 1937 and in the weight throw in 1929-1931, 1933-1935, 1937 and 1938.