What is how to throw a curveball?

Throwing a curveball involves imparting a specific type of spin on the ball that causes it to break downwards and/or sideways as it approaches the plate. Here's a breakdown:

• Grip: The grip is crucial. A common curveball grip involves placing your middle finger along a seam, with your thumb providing support on the opposite side of the ball. The index finger can rest alongside the middle finger or be tucked. The exact grip is personal preference, but the goal is to be able to snap your wrist effectively. See more about the grip of a curveball.

• Arm Action: While it should resemble your fastball motion to avoid "tipping" your pitch, a curveball requires a downward arm angle. You want to get on top of the ball. This is key for imparting the proper spin.

• Wrist Snap: This is where the magic happens. As you release the ball, snap your wrist downwards and inwards (towards your body if you're right-handed). This creates topspin, which is what makes the ball curve. Imagine "pulling down the shade." Learn more about wrist snap for curveball.

• Spin: The topspin you impart creates a pressure difference; the air pressure on top of the ball is higher than underneath, causing the ball to drop due to the Magnus effect.

• Practice: Curveballs are difficult to master and can put stress on your arm, especially if thrown incorrectly. Start slow and focus on proper technique. Gradual increases in velocity are crucial to avoid injury. Consult with a coach or experienced pitcher to get feedback on your form. Be careful about practicing curveballs.

• Age: Young pitchers (under 14) should generally avoid throwing curveballs, as their bones and ligaments are still developing. The stress of snapping the wrist can lead to injuries. Focus on mastering the fastball and changeup first. Learn more about age recommendations for curveballs.

• Control: Developing consistent control is essential. A wild curveball is ineffective and can lead to walks. Focus on hitting your spots, even if it means sacrificing some break. Developing curveball control takes time and repetition.