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