10 Famous Medium Sized Dog Breeds

5. Whippet:
Some people look for athlete dogs those who can perform well in dog sports. Yes, dog sports is very interesting and you will have to prepare your dog for that. You will be lucky if you get this breed for this case. Whippets are great runners and they can run up to 35 miles per hour. Normally they are quiet and are very easy to train because whippet is highly intelligent. Lastly, they love humans.