Imagine a big competition where dogs come from all different places to show off their skills and abilities, just like how you might have a big show-and-tell at school. This competition is called a championship, and the dogs are competing to see who is the best in their breed.
Each breed has certain characteristics that judges look for. For example, if the breed is known for being very good at running, the judges will watch the dogs run to see who is the fastest. If the breed is known for having a really thick fur coat, the judges will examine who has the thickest, shiniest fur.
The dogs are groomed and trained to be at their very best for this competition. They might get a nice bath or a haircut, and their owners might spend lots of time practicing different commands with them.
At the end of the competition, the judges will announce a winner for each breed, and then an overall winner for the whole championship. Winning a championship is a big deal, just like winning a gold medal in the Olympics!