How does a professional major league baseball player execute a fundamentally sound swing?
“The hardest thing to do in baseball is to hit a round ball with a round bat squarely.”
-Ted Williams
Bat angle, exit velocity, ball spin, and mindset: a small portion of the many factors that affect the difference between a four-hundred foot home run and a fifty foot ground out to the second baseman. Batting a baseball takes an extreme amount of concentration and practice. What a professional baseball player like Pete Alonso (pictured above) makes look easy as he competes in the home run derby, can seem impossible for other individuals no matter how strong or athletic you are. Baseball is a sport that takes an extreme amount of focus and cannot be “picked up” in a matter of days like football can. Here we will break down the physics of a professional baseball swing.
The Fundamental Body Parts
When a major league baseball player approaches the plate, most have one goal in mind: make solid contact with the baseball to drive to the outfield. What they don’t tell you is that in order to make that happen, a lot must be done right. To give perspective on the amount of failure that happens in the game of baseball, a player will sometimes have a career batting average of .300 and get elected to be a part of the Major League Baseball Hall of Fame. This means that 7 out of ten times that batter approaches the plate, he fails to get a hit. What a frustrating game right? That being said, we will analyze the proper mechanics of a hitter that will result in making solid contact with the baseball.
- Shoulders:
The shoulders play an intricate part in facilitating the swing path. From an initial resting state, the batter should move his shoulders backwards towards the catcher indicating the loading phase. Upon release from the loading phase the shoulders will guide the swing path of the bat and determine where the bat makes contact with the ball. Some might say that the strength of the shoulders can leverage the overall velocity of one’s swing.
Simple concepts of balance can be applied to a swing to analyze the role of the shoulders. If the back hip of a hitter is collapsing and driving inward, we know that the shoulders must open towards the pitcher in order for the hitter to maintain balance.
- Hips
Power is accumulated in the hips, and the more explosion a batter has from the hips, the deeper the flight of the ball off the bat will be. In order to produce this power, the shoulder and the hips must work together even though their movements can be considered antagonistic. When a batter begins to leave the loading phase and stride towards the ball, the rotation of the hips should be the first thing in a hitter’s swing. The rotation of the hips will create a separation between the hips and the shoulders and allows the shoulders to act much like a rubber band. A common flaw that some hitting coaches teach is that the shoulder and hips rotate together, but that will not produce a high velocity swing.
The Desired Swing
In order to better understand the fundamentals of a better baseball swing, it can better be broken down into four steps. These steps break down the major components that should be evident in any good hitters swing.
Step one: The load
The purpose of an effective loading step is to harness energy to release into the baseball. This can typically be done by shifting your weight to the inside part of your back foot. It does not make much of a difference if your heel rises or not. That is more of a personal preference. At the end of the loading step, your back foot, back knee, and back hip should all be in the same plane.
Step 2: The Step
The correct step helps us to properly time the pitch trap the weight in our body in preparation for the launch. During this step, the hands are still back with a steady head waiting on the incoming pitch. The importance of this leads into the rest of the swing. Failure to execute a proper step may disorient your ability to judge the speed or location of the ball. The step should be short and composed.
Step 3: The Launch
The purpose of the laugh is to unleash the power harnessed during the first two steps of the swing. The hands are not the first thing to commit in this step. This is a common misconception. Allowing the ball to travel deep into the hitting zone will allow for better contact and greater power. The hitter will drive the knob of the bat towards the ball, pulling with your bottom hand to guide the barrel. The launch also is where the hips explode and set the tilt of the body. The front foot becomes open at this point.
Step 4: Contact and Extension
The purpose of contact and extension is to hit the ball hard somewhere and extend your power through the ball. The hitter’s backside will be completely rotated and the front foot angled. The top hand will be palm up at this point and be pushing the bat through the baseball. This completes the motion to maintain balance during the swing. Extension is used to further release energy into the ball.
Of course, practice makes perfect with most things, but not so much with baseball. As we are reminded, the best players fail 7 out of 10 times at the plate! With these fundamental steps and proper use of key body parts you will be on your way to hitting the baseball hard and far in no time.





