The fundamentals of the stride in baseball pitching and hitting are the same. The only difference in pitching and hitting strides is the length. Consequences of understriding and overstriding The pitching delivery and swing are initiated by striding with the front foot. If the stride is too short, baseball pitchers and hitters will rotate their hips and shoulders too quickly. Pitchers will spin out and yank their pitches. Hitters will pull off pitches early causing poor or no contact.
If baseball pitchers overstride, they will be late releasing the ball to the target, will have insufficient hip and shoulder rotation, and will have too much head movement. This results in poor command, ball action, and velocity.
If baseball hitters overstride, their swings will be late and rushed, causing a poor bat plane, excessive head movement, and reduced bat speed. They will miss or not center pitches or have no authority behind their contact because of poor hip and shoulder rotation.
The correct baseball stride For a baseball pitcher the stride's length should depend on where he can best execute his hip and shoulder rotation. This will improve his command of the baseball and maximize the ball action and velocity. The stride is usually 75-100% of player's height.
Tim Lincecum of the San Francisco Giants goes beyond that length because he kicks off the pitching rubber. He is a wonder who has repeated that delivery since he was small. Not many baseball players have his athleticism to copy that motion and be effective.
For baseball hitters the stride should be 2-4 inches. They should stay with the stride that produces the most dynamic hip and shoulder rotation without sacrificing balance and losing eye contact.
Some professional hitters choose not to stride and some overstride, but they have worked hard on their technique where they get the best results and feel comfortable.