The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed.

How fast do thoroughbreds run a mile?

The fastest a horse ran one mile on turf is 1:31.23

Although horses typically run faster on dirt, the record for the fastest mile was set on turf.

How fast can a racehorse run at full speed?

The average racehorses speed is approximately 40 to 44 mph (64 to 70 km/h). The rigidly trained animals can reach it for less than 20 seconds. However, most of them can't run faster than 20 to 30 mph (32 – 48.5 km/h) on average with a rider on their back. The fastest recorded galloping speed is 55 mph (88.5 km/h).