Lahdenperä started in FIS races for the first time in November 2000 . He celebrated his first national successes in 2002 when he became three-time Swedish junior champion. In the same year he took part in a junior world championship for the first time , but remained without result. The following year he only reached 30th place in the giant slalom. In 2004 he caught up with the national top and won his first Swedish championship title in giant slalom , at the junior world championship he came eighth in slalom and ninth in giant slalom.
Lahdenperä established himself internationally from the beginning of 2005 in the European Cup races with two second places in the slalom. In the 2005/06 season he finished in the top three in five of the last seven slalom races and in the end came second in the discipline ranking behind his compatriot Mattias Hargin . After he had already contested his first World Cup race on January 16, 2005 at the Lauberhorn Slalom in Wengen , he was promoted to the Swedish World Cup team in the 2006/07 season . In the second race of the season at Beaver Creek , he surprisingly finished ninth; it should be the best result of his career. This season he finished four more times in the points, and a year later he was able to score five times.
In the 2008/09 season Lahdenperä managed not a single countable result. In the 2009/10 season he was again among the top 20 three times and achieved his second-best World Cup result with 13th place in the Zagreb Slalom . In addition, he achieved podium places in the European Cup for the first time in four years and thus won the slalom classification. The 2010/11 World Cup season was less successful, with 19th place in the Val-d'Isère slalom being the best result. In the 2011/12 season Lahdenperä was only able to score in the second World Cup slalom as 26th and otherwise never qualify for the second round. The 2012/13 season had Lahdenperä prematurely, during the 2013/14 season seven went into the points. In the 2014/15 season was the 11th place in Levi his best result in the season 2015/16 of 14th place in Val d'Isere. After he could only show a countable result twice in the winter of 2016/17, Lahdenperä announced his retirement from top-class sport at the end of April.
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Sweden
