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Sven Kramer first won the World Allround Championship in 2010. This was a significant achievement for Kramer, as it marked the beginning of his dominance in the sport of speed skating. He went on to win the championship six more times, in 2012, 2013, 2015, 2016, 2017, and 2019. Kramer's success in the World Allround Championship is a testament to his exceptional talent and dedication to the sport.