Question: dog breeds that are fast runners?
Answer: Greyhound. Greyhounds make up the fastest dog breed in the world. ... 
Saluki. This medium-sized dog was bred in the Middle East for chasing fast prey. ... 
Afghan Hound. The Afghan hound is one of the oldest known dog breeds in the world. ... 
Vizsla. ... 
German Shepherd. ... 
Dalmatian. ... 
Borzoi. ... 
Whippet.