Transcript for Westminster Kennel Club Rule Change Boosts Competition
All right, Lara, you got the story of the morning. I'm very excited. You know I might like a dog or two. It looks like every dog will have his day at this year's Westminster dog show. For the first time in more than a century the Westminster kennel club is allowing mixed breeds to compete in the storied canine competition. The Westminster dog show where elite purebred canines with perfectly coifed coats have come to prance for the last 138 years. But now there's a new kind of pooch in town, the mutt. That's right, for the first time in more than a century, pure breeds and mixed breeds will go tail to tail this Saturday in a brand-new west minister event called the masters agility championship. It doesn't matter how nice your coat is. It doesn't matter if you're using hundred dollar shampoos on your coat. What matters is how fast you are and what a great time you're having with your handler. Yes. Reporter: The course adds 16 to 18 different obstacles from jumps to tunnels to weave poles, even seesaws. Good boy. Awesome. Reporter: 210 pedigreed dogs up against 15 mutts like jimmy, a chihuahua mix rescued when he was 7 weeks old. Any dog can do it. Just because your dog doesn't have a pedigree doesn't mean it's not a canine athlete. Reporter: So with this kind of scruffy rookie competing against veteran purebreds like Icelandic terrier Luke, will the underdog be able to achieve top dog status? You'll have to tune in to this mutt-see event to find out. Oh. Go, mutts. We know a few dogs we think are winners. Want you to check out my three contenders that -- you have to look closely, the top two on top of the bed, cocoa, harry sneaking out of the bed and, of course, you know dandy. We don't know what they are so they're perfectly acceptable for this event. Then I know, George, you have some that you would -- Daisy, Charlie could do it. That's daisy, though. That's an old picture of daisy. She would not be -- And robin, who do you think would win? Come on. Kj. She's already ready on the podium. She's posing. We'll have the winner, the actual winner of best in show, best in show will be here "Gma" Wednesday morning, don't miss it.
This transcript has been automatically generated and may not be 100% accurate.