Gainesway Farm is an American Thoroughbred horse breeding business in Lexington, Kentucky. It was originally called Greentree Farms. The 1,500 acre (6 km²) property has been home to stallions such as Youth and Exceller and numerous others who are buried on the property. Among the current stallion roster is Tapit, sire of 4 Breeders' Cup winners since 2008 and 2013 Leading U.S.-based Yearling Sire.