Here's a breakdown:
* Greyhounds are specifically bred for racing, and their streamlined bodies and powerful muscles are designed for short bursts of incredible speed. They can reach speeds up to 45 mph in short distances.
* Borzoi were bred for hunting wolves and other large prey, requiring them to chase over long distances. While they are incredibly fast, their top speed is estimated to be around 35 mph.
Therefore, Greyhounds are generally considered to be faster than Borzoi.