DockDogs is one of the fastest-growing sport on four legs. It was started in 2000 “to create a nationally recognized competitive sport based on rules and precedents in track and field competitions,” the organization’s website states. DockDogs brought the competition this past week to the Polk County Fair in Fertile, Minn. Grand Forks photographer Russ Hons was on hand for the competition. (Check out more  photos from Russ Hons here.)