In this tutorial, we learn how to throw a riser pitch with a wiffle ball. first, hold your wiffleball the same as you would hold a slider. Throw with your sidearm towards the ground. This should be fairly simple to do, but you will need to get your fingers place correctly on the ball to make the throw perfect. Throw faster if you want the ball to hit the opponent harder. Keep practicing this until the ball flies into the spot you want and gets the amount of air it should get. When you learn how to do this, you will be able to throw this type of ball easily!