"The official term for dog shows is conformation — as in, the act of conforming or producing conformity. While a dog show may look like a beauty pageant, it’s not. Dogs are not being compared to each other; they’re being measured by how closely they conform to the standard of their particular breed. Why? Because the closer a dog’s appearance is to the breed’s standard, the better that dog’s ability will be to produce puppies that meet the standard. It’s also the reason why mixed breeds and spayed or neutered purebreds are ineligible to compete in conformation." - AKC Website