The Greyhound is a sighthound which has been historically bred for coursing  game and Greyhound racing. It is a gentle and intelligent breed with powerful long legs deep chest and flexible spine. They have a slim build that allows it to reach average race speeds of 40mph. The Greyhound can reach a full speed  43 mph within 32 yards or six strides from the boxes, traveling at almost 20 meters per second for the first 250 meters of a race.