Once known as the Russian Wolfhound, the Borzoi is a graceful and swift sighthound, bred to chase and pin prey. There's nothing quite like the sight of a borzoi at full speed, often reaching 40 miles per hour. although almost cat-like in their independence, they are also affectionate and loyal family dogs. As agreeable and calm as they are, they can also be a bit stubborn and are always ready to give chase. your borzoi puppy will respond to gentle, patient training. born to run, he'll chase anything that moves, so a fenced-in yard and leash training are important.