The smaller the circle, the more downward movement you’ll have on the pitch. [1] X Research source If you’re just starting out with the circle changeup, you can also try forming a C with your thumb and first finger rather than a full circle. [2] X Research source
This will help you get a better feel for how to grip the ball when you release.
Imagine there is a dot in the middle of your circle and you are throwing it to the catcher. [4] X Research source
This is the same grip as a fastball.
If you’re having trouble controlling the ball, you can try gripping the ball with your thumb and pinky on the sides of the ball. [7] X Research source
If it doesn’t, you may not have a tight enough grip or be throwing fast enough. Experiment with your grip and speed to get the needed effect. [9] X Research source
Placing your fingers along the stitches will create a 2-seam rotation. This means that only 2 of the stitches will encounter airflow, so the pitch will be slower and easier to control. [11] X Research source Placing your fingers along the stitches will also help keep you from snapping the ball, pulling on the seams, and speeding up the pitch. [12] X Research source
If you have larger hands, you can also use the knuckle grip. Tightly grip the ball with your thumb and pinky on either side and place the first bend of your other 3 fingers along the stitches.
Your arm should move the same way it does for a fastball.
If your hand is too small, you can grip the ball with your fingertips in the same position as your knuckles would be. [16] X Research source Make sure to keep your palm as far away from the ball as possible. [17] X Research source
Squeeze your fingers together as the ball comes out of your hand, and make sure your fingers come away from the ball simultaneously. This will help keep speed to a minimum. [19] X Research source
The release of a knuckleball changeup is roughly the same as the one used in a stiff wrist changeup.
Practice your grip by tossing the ball up in the air by pushing upwards with your palm.
Continue practicing your grip by tossing the ball upwards, this time adding in your middle, ring, and pinky fingers.
Practice releasing the ball by starting off pitching it to your catcher from a short distance, and increasing the distance as your grip becomes more confident.
