Premise: Walter Andreas Jakobsson (6 February 1882 – 10 June 1957) was a Finnish figure skater. As a single skater, he won the Finnish national championship in 1910 and 1911. In 1910, he partnered with German figure skater Ludowika Eilers. As pairs skaters, they won the World Championship in 1911, 1914, and 1923, and the Olympic gold in 1920. They finished second at the 1924 Olympics and fifth in 1928.
Hypothesis: Jakobsson was in his third decade on earth when he won the national championship