How to Throw a Screwball

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The screwball is an advanced pitching technique in baseball that when thrown correctly can be used to devastating effect. Similar to a curveball, the screwball follows a downward trajectory and has a slight rotation that makes it difficult to predict and even harder to hit. To throw a screwball, first take a secure grip on the ball at the seams. You’ll then wind up as usual, only before you release, you’ll turn your wrist inward and let your pointer finger drag down the side of the ball to initiate the spin.

Part 1
Part 1 of 3:

Gripping the Ball

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  1. It should sit just slightly toward the upper edge of your palm. Make sure both sets of seams are visible.
  2. Let your pointer finger rest directly to the inside of the inner seam. The stitches will provide traction and offer a more comfortable and natural grip. Slide your middle finger until it’s roughly an inch to an inch and a half away from your pointer finger. [1]
    • Some players find it easier to place both fingers parallel on the seams, while others prefer to leave their fingers a little closer together on one side of the ball. Do what feels most comfortable for you. [2]
    • This “claw” type grip will give you the dexterity you need to put some rotation on the ball at the moment of release.
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  3. Bring your thumb around the underside of the ball and clamp down. When it comes to hand positioning, your thumb is the final piece of the puzzle. It will give you the stability you need to manipulate the ball without it slipping out of your hand.
    • Don’t squeeze the ball too tightly—just grip it firmly enough to hold it in place until you complete the pitch.
    • Pinch the ball with the pad of your thumb, not the entire length of your finger. This will make it easier to make a quick release once the time comes.
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Part 2
Part 2 of 3:

Getting into Position

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  1. Stand with your feet about shoulder width apart, with your knees bent slightly and your upper body relaxed. Point the shoulder of your non-throwing arm toward the batting plate. Fix your gaze on the batter and don’t let it stray once you’re locked. [3]
    • Conceal the ball in your glove or behind your rear leg while you to reset your grip to make sure the batter can’t see your hand positioning. Otherwise, you may inadvertently tip them off.
    • Keep in mind that the ball will break to the outside of your body and be ready to adjust your position on the mound accordingly. [4]
  2. When throwing a screwball, your goal is to strike out an opposite-handed batter. That means that if you’re right-handed, you’ll be looking to place the ball low and to the right side of a left-handed batter. The reverse will be true for left-handed pitchers. [5]
    • Try not to make it too obvious where you’re about to throw. Telegraphing your intentions could cause you to end up feeding the batter an easy run.
  3. Take a small step back and to the side as your knee comes up to steady your balance. Raise both hands high in front of you as though you were throwing an ordinary fastball, then draw your pitching arm up and back. [6]
    • Don’t overthink it. The setup for a screwball will be the same as any conventional pitch until the release.
    • It’s important not to add any unnecessary movements or quirks to your pitch—that way, you can keep the batter guessing.
  4. Widen your base and touch down with the ball of your foot as you complete the stride. Bring your pitching arm in line with your shoulder, making sure your forearm stays upright. Keep your core tight and your shoulder relaxed to start building velocity for the pitch. [7]
    • The length of your stride should be approximately twice the width of your normal stance. Any more or less and you may throw yourself off balance. [8]
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Part 3
Part 3 of 3:

Creating the Rotation

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  1. Shift your bodyweight over your front leg, letting your pitching arm trail behind you. Brace yourself as your arm continues to move forward. Your palm should be facing the batter at all times to keep the ball lined up for an accurate pitch. [9]
    • Rotate your hips a couple of degrees in the direction you’re throwing to add more power to the pitch.
    • Screwballs aren’t typically thrown with as much force as some other pitches, so your back foot should stay rooted to the ground for added stability during the follow through.
  2. Bring your arm down in a tight arc. As you reach full extension, begin rotating your wrist and forearm so that the tops of your knuckles are pointed toward your body. You’ll need to use quite a bit of torque to get the ball to break to one side correctly. [10]
    • Right-handed pitchers will pronate their wrists counterclockwise, while left-handed pitchers should turn their wrists in a clockwise direction. [11]
    • Getting the hang of the motion will take practice. Throw a few screwballs at a low speed and see if you can feel the ball rotating.
  3. Let go of the ball just as your arm becomes level with your face. Allow it leave your hand easily, keeping your fingers out of the way to prevent them from delaying the release; the one exception will be your pointer finger, which you’ll use to initiate the spin. [12]
    • If the release comes too soon, the pitch may travel higher, which will neutralize some of the rotation and make it easier to hit. If it comes too late, there’s a chance the ball might not even make it to the plate.
    • Make the last part of your pitch nice and snappy. A well-placed screwball thrown at a high speed is nearly impossible to see coming.
  4. Just before you break contact with the ball, drag the inner edge of your finger downward sharply. This motion will generate rotation and eventually cause the ball to break in the opposite direction. [13]
    • When done correctly, your pitching hand should end up pointing directly at the batter at the moment of release.
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  • Question
    Should I start to practice pitching screwballs now? I'm a young pitcher, but I want to be a screw baller.
    Trevor Gentry
    Community Answer
    No. It can cause massive strain on your UCL.
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  • Question
    I am having trouble with the break on the screwball. Any help?
    Community Answer
    Keep practicing (safely), and make sure you're really torquing your wrist to initiate the spin. You should be able to feel your pointer finger on the ball until it leaves your hand. And, of course, if you're not throwing with enough speed the ball won't be able to veer in midair.
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      Tips

      • If you’re practicing alone, try filming yourself to check your technique and confirm that the ball is following the right trajectory.
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      • Use screwballs to strike out opposite-handed hitters, or throw off same-side batters by keeping the ball close to their center of mass.
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      • Remember, practice makes perfect. The screwball is an advanced pitch, so you may have to throw a few dozen before the mechanics of the movement start to click.
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      Warnings

      • Be extremely careful when drilling your screwball. Many professional players have suffered lasting shoulder injuries as a result of placing too much strain on their shoulders. It may be best to reserve this pitch as an ace in the hole and only throw it on certain occasions.
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      References

      1. ↑ https://ace-pt.org/the-five-phases-of-throwing-a-ball/
      2. ↑ https://ace-pt.org/the-five-phases-of-throwing-a-ball/
      3. ↑ https://ace-pt.org/the-five-phases-of-throwing-a-ball/
      4. ↑ https://www.iahsaa.org/wp-content/uploads/2019/09/SafeEffectiveBaseballPitching.pdf
      5. ↑ https://www.iahsaa.org/wp-content/uploads/2019/09/SafeEffectiveBaseballPitching.pdf
      6. ↑ https://www.iahsaa.org/wp-content/uploads/2019/09/SafeEffectiveBaseballPitching.pdf
      7. ↑ https://www.youtube.com/watch?v=oCEP3Yhegzk
      8. ↑ https://www.youtube.com/watch?v=oCEP3Yhegzk
      9. ↑ https://www.youtube.com/watch?v=oCEP3Yhegzk
      1. ↑ https://www.pbs.org/kenburns/baseball/baseball-for-beginners
      2. ↑ https://www.pbs.org/kenburns/baseball/baseball-for-beginners
      3. ↑ https://probaseballinsider.com/baseball-instruction/how-to-throw-a-baseball-part-1-the-4-seam-grip/
      4. ↑ https://probaseballinsider.com/baseball-instruction/how-to-throw-a-baseball-part-1-the-4-seam-grip/

      About This Article

      Article Summary X

      To throw a screwball, start by gripping the ball with your pointer and middle fingers along the inside seam, and your thumb underneath. Then, get into a normal pitching stance, begin your wind-up, and raise your arms in front of you as if you're about to throw a fastball. Next, step forward into the pitch and rotate your throwing arm so your knuckles face towards your body. When your arm is in line with your face, run your pointer finger down the inside of the ball to create spin, then release the pitch. For tips on how to disguise your intentions from the batter, keep reading!

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