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The following year he finished second in the decathlon at the 1912 Summer Olympics in Stockholm, 688 points behind Jim Thorpe.
The following year he finished second in the decathlon at the 1912 Summer Olympics in Stockholm, 688 points behind Jim Thorpe.
He set the inaugural world record in the pentathlon in Gothenburg in 1911 with a score of 5516 points. In 1913, after it was discovered that Thorpe played professional baseball for a minor league team, Thorpe was disqualified for not being an amateur. In 1982 Thorpe was reinstated by the International Olympic Committee with Hugo Wieslander as joint winners of the 1912 Olympic decathlon.
Wieslander competed in the long jump, discus throw, shot put and two types of javelin throw at the 1908 Olympics.
He completed only the freestyle javelin throw event, in which he placed fifth. In 1913 he passed the state surveying exam and became employed by the Swedish cartography agency (sv:Rikets allmänna kartverk).
Later for many years he was uncomfortable with keeping the 1912 gold medal and was contemplating to return it Thorpe. He finally reconsidered, and in 1951 donated it to the sports museum at the Swedish School of Sport and Health Sciences.
In 1954 it was stolen from there and never recovered.