Nimble the All-American Dog won the 11th Annual Masters Agility Championship at the 2024 Westminster Dog Show with a time of 28.76 seconds Gabrielle Rockson is a staff writer-reporter for PEOPLE.
When the Westminster Kennel Club dog show added an agility competition a decade ago, it opened US dogdom's most elite door to mixed breeds for the first time since the late 1800s. But purebreds ...