Standardbred
（重定向自Standardbred Horse）
The Standardbred is an American horse breed best known for its ability in harness racing, where members of the breed compete at either a trot or pace. Developed in North America, the breed can trace its bloodlines to 18th-century England. The Standardbred is recognized worldwide. They are solid, well-built horses with good dispositions. In addition to harness racing, the Standardbred is used for a variety of equestrian activities — including horse shows and pleasure riding — particularly in the midwestern and eastern United States, and southern Ontario.