Dogs compete in the Incredible Jack Russell Hurdle Racing Competition at the Purina Incredible Dog Challenge National Finals.Sarah Conard / Nestle Purina via AP
By Animal Tracks
See some incredible dogs that competed in the Purina Incredible Dog Challenge 2011 finals, where athletic pooches from around the world compete in diving, freestyle flying disc, weave poles, Jack Russell hurdle racing and agility competitions. The competition was held in Missouri on Sept. 30-Oct. 1. Read more about the competition, here.