* Individual Horse: Like all breeds, Belgian horses have variations in their athleticism and training. Some may be naturally faster than others.
* Training: A Belgian horse trained for speed will obviously be faster than one not trained for racing or speed work.
* Distance: A Belgian horse's speed will vary depending on the distance they are running. They are more known for their strength and power, making them better suited for short bursts of speed rather than long distances.
* Terrain: Running on flat, smooth terrain will allow for faster speeds compared to rough or hilly terrain.
However, here's what we know:
* Belgian horses are NOT bred for speed. They are draft horses known for their massive size, strength, and pulling power.
* While they are not built for high speeds, they can still run relatively fast in short bursts. This is especially true for younger horses who are still developing their muscles.
* It is unlikely a Belgian horse would reach the top speeds of Thoroughbred racehorses.
In conclusion, while it's tough to give a precise number, a Belgian horse can run at a decent speed, especially for short bursts, but they are not known for their speed and are better suited for pulling and other heavy work.