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Racing of quarter horses. It originated among British settlers in Virginia shortly after Jamestown was established in 1607. The course was traditionally a quarter-mile (400 m); today there are 11 officially sanctioned races, ranging from 220 to 870 yd (201 to 796 m). Timing is to the nearest .01 second.
This entry comes from Encyclopædia Britannica Concise. For the full entry on quarter-horse racing, visit Britannica.com.
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