Every dog at this week's Westminster Kennel Club show is a champion. So how does a judge decide which is best in show?

They’re at the top of their sport. They run, weave and go airborne. And they went all out for this weekend’s championship.

Owner-handler Emily Klarman of Doylestown, Bucks County, watched Vanish, a Border Collie, win the 12th Annual Masters Agility ...