It is about the ball type of softball following the last time.
Moving fastball. This is a ball that changes randomly at the batter’s hand by shifting the rotation axis. The speed is fast and looks seemingly straight, but it is very difficult to hit because it moves irregularly.
Shootball. This is a ball that changes in the opposite direction to the slider and bends in the same direction as the pitcher’s dominant arm.
Sinker(Screwball). This is a ball that looks like a shootball, bends in the same direction as the pitcher’s dominant arm, and falls further.
Knuckleball. This is a non-rotational ball. Because it is slow and almost non-rotating, it becomes a ball that can be shaken by the influence of wind and air. This is called 「Magic ball」,because the pitcher can’t predict movement.
There are various theories, but the main ball type of softball is said to be the above 10 types (including the previous one).
Please come to the stadium to experience the movement and speed of the actual ball.