Like a number of agility handlers, Wirth, 34, took up the sport simply because he had a very energetic dog that needed more stimulating activity than walks and fetch. Five years later, he and Welly ...

On average, the majority of dogs are able to run at a speed of 15-20 miles per hour (24-32 km/h). Nevertheless, a few breeds are such that they are perfectly suited and muscular to have an amazing ...