Track surface
The track surface of a horse racing track refers to the material of which the track is made. There are three types of track surfaces used in modern horse racing. These are:
The style of racing differs between surfaces, with dirt races tending to be faster than those on turf or artificial surfaces. Anecdotally, dirt racing is the more reliable, and thus more popular, medium for betting purposes. Weather conditions affect the speed of the different surfaces too, and grading systems have been developed to indicate the track condition (known as the "going" in the UK and Ireland).