There was a sprint dogsled race taking place this weekend in North Pole, Alaska. These dogs are simply amazing, and want to run as soon as they are harnessed They can't contain themselves, so several people have to hold-on to them to prevent them from 'jump starting" the race. They run at full speed for around 4 miles, and when they cross the finish line they don't want to stop. The musher has to have several helpers to grab and slow the dogs past the finish line.