Answered By: Jeffrey Orrico Last Updated: Feb 01, 2017 Views: 1979
In addition to the total length of the race (anywheres from one-quarter mile to one-and-a-half miles), common measurements include:
Furlong: The increments races are measured by in North America (equal to an eighth of a mile.)
Length: Measurement used to denote distances between horses; approximately equal to the length of a horse (nose to tail), approximately 8 feet.
Hand: units used to measure the height of a horse at the withers (the base of the neck on the horse’s back), one hand equals 4 inches; 16.3 hands equals 16 hands, one inch, or 64” + 1”, 65 inches. Horses range in height from 14.2 hands to over 17 hands.
Source: "Popular Horse Racing Terms," in RunHorse.com. http://www.runhorse.com/popular_horse_racing_terms.htm