Sled dog the decline of the working sled dog. Recreational mushing came into place to maintain the tradition of dog mushing. The desire for larger, stronger, load-pulling dogs changed to one for faster dogs with high endurance used in racing, which caused the dogs to become lighter than they were historically. Americans then began to import Siberian Huskies to increase the speed of their own dogs, presenting "a direct contrast to the idea that Russian traders sought heavier draft-type sled dogs from the Interior regions of Alaska and the Yukon less than a century earlier to increase the hauling capacity of their
Sled dog racing start events can have up to 30 teams (300 dogs) start all at once. Although some races are unsanctioned, held under the sole guidance of a local club, many races fall under one of three international organizations. In the United States and Canada, ISDRA (International Sled Dog Racing Association) sanctions many races. In Europe ESDRA (European Sled Dog Racing Association) provides sanctioning, and the IFSS (International Federation of Sleddog Sports) sanctions World Cup races all over the world, as well as a world championship race every two years. For the race to be sanctioned, a variety of rules must be