The Burghley Horse Trials, part of the eventing competition, features a cross-country course that typically spans approximately 6,500 to 7,000 meters (about 4 to 4.5 miles). The competition also includes dressage and show jumping phases, but the cross-country phase is the most notable for its challenging terrain and obstacles.
No
They can do that because they don't run out of steam easily
In a long distance race yes but in a short run no.
It depends on the distance being raced but in general a Thoroughbred can run between 35-50 mph.
The Appalossa.
It depends on how fast the horse is going, and what kind of horse it is. Most horses run about 40 mph. Speed*Distance=Time, so about 5 minutes, give or take some seconds.
The fastest breed of horse is the American Quarter horse, which can reach up to 55 m/h (88 km/h) for a short distance. A Thoroughbred horse can only run as fast as 45mph.
a work or a breeze or can even be called a 2 minute lick
No real accurate answer. However, in a horse race ,at full gallop, the horse will be 'blown out; after 4 or 5 miles. In 'western' films, where you see them galloping for miles and miles, and miles. Wrong!!!! It is only fiction for the film . The animal would be 'finished' after about 3, or 4 or 5 miles. A horse could probably go a little bit further if it is 'cantered', rather than galloped.
You have to run beside it
I am sure any type COULD be a racehorse but not all horses are cut out to be one. Most racehorses are quarter horses or thoroughbreds. A quarter horse is the fastest horse but can only run a short distance. A thoroughbred isn't as fast but can run for a larger period of time. I hope I helped out some ;)
The definition of a distance racehorse depends on what part of the world you're from. In the US, a distance horse is one that can run well and win races over a mile in length, i.e. a common distance for UK racehorses.