it depends on the fitness of the horse
Different horses run different distances, due to different schedules. Racehorses, lots. Companion horses, not so much.
Horses are able to run long distances at a fast pace. They are also very big so they do not have many predators.
The Quarter Horse is the best ranch horse because of their ability to run fast, short, distances.
Yes, horses are built to run. They are also built to pull heavy weights, though this is secondary to their ability to run, and travel long distances. Not all horses are fast, they do have three basic 'running types' Sprinter, Middle Distancer, and stayer. Sprinters are chunky with big hindquarters. Middle Distancers tend to have slightly bigger hindquarters like a sprinter, but a bit longer in the body like a stayer. Stayers have long, lean, typically tall bodies, they can travel distances at speeds slightly slower than a sprinter.
The plains Indians would use horses to hunt buffalo. It was much easier to catch up with the buffalo herd when you could run just as fast. They also used horses to travel long distances.
probably not because most horses are built for speed and donkeys are not
Quarter Horses are the fastest for short distances, clocked at 55 mph! Thoroughbreds follow next at only 40 mph, but they can go much longer distances.
zebras can run faster than horses
Horses have many protective adaptations. Among these are the increased lung capacity and cardiovascular adaptations that enable a horse to run at peak speeds for long distances to outrun predators.
Horses can run free if they are treated cruelly. If they are treated well they wouldn't run away.
Tennessee Walking horses are not the fastest horses. They run about the same speed as most other horses, around 25-30 mph. They are really smooth though, in all their gaits, trot and lope included, from my experience. They are really good horses. However, if you want a really fast horse for short distances, a Quarter horse would be a better breed. They can run at 55 miles an hour for about a quarter of a mile. For a slightly slower horse but with more stamina, you could look into a thoroughbred who run closer to 40 mph. Other horses run about 25-30 mph like the Tennessee walker.
The limbs of horses are strong and muscular. That would suggest that they are adapted for walking and running over long distances.