Dirtbread, used as a racehorse, is a horse designed to run fast by fate. The key to transforming race veterans into horseback riding is a training method that converts URL them from sprint horses to safe horses. Train them to move the center of gravity from the front to the back. Specific training methods can be learned through training, whether it is rough or URL rough. Of course, the horse used in professional sports in Japan is the European wormblood. A wormblood is a very different quality and level of horse from a race-retired horse used in daily sports URL . However, wormblood is difficult to popularize because of its limited number