This Perth Ball
This Perth ball is one of the pitches of the pitcher pitcher. The characteristic of this Perth ball is that the ball, which left the pitcher's hand, suddenly soared as though it were parabolic. In addition to knuckleballs, pummels, and screwballs, it is rarely seen in modern baseball. Instead of a very large drop, the redemption stays between the early 50s and the mid-half. In Korea, it is also known as Arirang Ball. In Korea, Doosan Bears' playmaker has become a hot topic with a 76km / h pitch.