Many factors can affect the running speed of a beagle. This article will explore some of these factors, including body structure, health, age and size. Body Structure A Beagle's body structure is one of its most apparent differences from other dog breeds. Their large chest and barrel-like body allow them to move forward quickly and easily. Moreover, they have short legs and a long torso, making them well-suited for hunting rabbits in tall grasses.  This dog can run long distances efficiently without tiring. They can also smoothly transition from a walk to a run to catch up with their prey. However, their body structure makes it difficult for them to run at high speeds over long distances. Health A healthy dog can run faster than an unhealthy one. If your Beagle is feeling unwell, they may not be able to sprint at full speed. Feed your Beagle a balanced diet, and provide regular exercise for long, healthy life. A healthy dog has more energy to burn off when exercising. Age As dogs grow old, their joints become worn out. They also lose muscle mass and become less flexible. So, they may not be as swift as younger dogs.  These dogs have a hard time running at high speeds for extended periods. However, some older dogs are energetic and fit enough to keep up with young pups. Size Smaller dogs tend to be faster than larger ones. This is because they have less weight and more agility on their side.