MLB Curveball vs. MLB Slider

Attribute	MLB Curveball	MLB Slider
Spin Rate	High	Medium
Velocity	Slower	Faster
Movement	12-6 break	Horizontal break
Grip	Thumb on bottom	Index and middle fingers on top
Usage	More common	Less common

Introduction

When it comes to pitching in Major League Baseball, two of the most popular breaking balls used by pitchers are the curveball and the slider. Both pitches are effective in keeping hitters off balance and generating swings and misses. However, there are distinct differences between the two pitches in terms of grip, movement, and velocity. In this article, we will compare the attributes of the MLB curveball and the MLB slider to help you understand the differences between these two pitches.

Grip

The grip is one of the key differences between the curveball and the slider. A curveball is typically thrown with a grip where the pitcher's fingers are placed along the seams of the ball, allowing for more topspin and downward movement. This grip helps create the signature 12-6 movement that makes the curveball so effective. On the other hand, a slider is thrown with a grip where the pitcher's fingers are placed across the seams of the ball, allowing for more lateral movement. This grip helps create the sweeping movement that makes the slider difficult for hitters to track.

Movement

Another key difference between the curveball and the slider is the type of movement each pitch generates. A curveball is known for its sharp downward break, with the pitch dropping vertically as it approaches the plate. This downward movement can cause hitters to swing over the top of the ball or misjudge the pitch's location. In contrast, a slider has more horizontal movement, with the pitch breaking away from the hitter's bat. This lateral movement can cause hitters to chase pitches out of the strike zone or make weak contact.

Velocity

Velocity is also an important factor to consider when comparing the curveball and the slider. In general, curveballs are thrown at a slower speed than sliders. The slower speed of the curveball allows for more break and deception, as hitters have less time to react to the pitch. On the other hand, sliders are typically thrown with more velocity, making them harder for hitters to track and time. The combination of speed and movement makes the slider a devastating pitch when executed properly.

Usage

Both the curveball and the slider are effective pitches when used correctly, but pitchers often have a preference for one pitch over the other. Some pitchers rely heavily on their curveball as a strikeout pitch, using it to keep hitters off balance and generate swings and misses. Other pitchers prefer to use the slider as a weapon against both left-handed and right-handed hitters, using its lateral movement to induce weak contact and ground balls. Ultimately, the decision to throw a curveball or a slider comes down to the pitcher's comfort level and the situation in the game.

Conclusion

In conclusion, the MLB curveball and the MLB slider are two distinct pitches with their own unique attributes. The curveball is known for its sharp downward break and slower speed, while the slider features more lateral movement and higher velocity. Both pitches can be effective in keeping hitters off balance and generating outs, but pitchers must understand the differences between the two pitches in order to use them effectively. Whether a pitcher prefers the curveball or the slider, mastering these pitches can make a significant impact on their success on the mound.