The Changeup and the Splitter: The Pitches That Take Speed Off

By 4Baseball Staff · November 5, 2026 · 11 min read

How the changeup and the split-finger fastball work: grips, arm speed, spin, why one fades and the other falls, and why pitchers lean on them against hitters who bat from the opposite side.

A hitter swings at a baseball on a schedule. By the time the ball leaves the pitcher's hand, the batter has already begun to decide when to start the bat, and a fastball arrives in roughly four-tenths of a second. The changeup and the splitter are the two pitches built to spoil that schedule. Both look like a fastball coming out of the hand, and both arrive later or lower than the hitter expects.

They get there by different roads. The changeup is a slower pitch thrown with a fastball's arm motion, usually fading away from hitters who bat from the opposite side. The split-finger fastball, usually called the splitter, is thrown nearly as hard as a fastball with the fingers spread apart, so that it loses most of its backspin and drops steeply near the plate. One steals time, the other steals height.

This article explains the grips, the physics in plain terms, why the changeup in particular is a weapon against opposite-handed hitters, how the two pitches are sequenced, the pitchers best associated with each, and the open questions about arm health. The historical record, the database behind the numbers on this site, does not record pitch types, so career figures below are for the pitchers, not for the pitches.

The shared idea: time, not just speed

A pitcher's job against a hitter is partly to be fast and partly to be unpredictable. The changeup and the splitter exploit a simple fact: a hitter judges a pitch by the pitcher's arm action, the ball's early flight and the spin he sees, and then commits to a swing before the ball arrives. If the pitch is slower than the one the hitter prepared for, he swings early. If it drops more than he expected, he swings over it.

Some arithmetic shows how small the margins are. A hard fastball covers the distance from the mound to the plate, 60 feet 6 inches, in about four-tenths of a second. A pitch ten percent slower takes about eleven percent longer, so it arrives roughly four-hundredths of a second later. That is far less than the blink of an eye, yet the difference is enough to put the bat out in front of the ball. The hitter cannot wait, because the swing itself takes time, and a bat started late cannot catch a fastball.

Gravity does the rest. Over four-tenths of a second, any object falls about two and a half feet from its straight-line path. A fastball thrown with strong backspin resists some of that fall, which is why batters sometimes say a fastball "rises." A pitch with less backspin does not resist as much and drops more. These numbers are simple physics with no drag included, offered to show the scale of the problem, not as measurements of any particular pitcher.

The changeup: the same arm, a slower ball

The defining rule of the changeup is arm speed. The pitcher throws it with the same arm motion, and ideally the same arm speed, as his fastball, but the grip and the release take velocity off. The ball is held deeper in the hand, so the fingers have less leverage, and the wrist and forearm turn to put the ball on a different path. Because the pitcher's arm looks the same, the hitter reads fastball and starts his swing too soon.

There is no single changeup grip. The most common version is the circle change, in which the thumb and index finger form a circle against the side of the ball while the other fingers rest on the seams. Others include the three-finger change, in which the index, middle and ring fingers sit on top of the ball, the palm ball, held far back in the palm, and the Vulcan change, in which the ball is wedged between the middle and ring fingers in the shape of the Vulcan salute. Pitchers pick the grip that gives them the right feel, and many settle on one after trying several.

The movement is usually arm-side fade. A pitcher's arm side is the side of his throwing arm. For a right-hander, that is the direction of a right-handed hitter's body, so a right-hander's changeup moves toward a right-handed hitter and away from a left-handed one. It tends to sink as well, partly from the reduced backspin and partly from the gravity that acts on a slower ball over a longer flight. The result for an opposite-handed hitter is a pitch that looks like a fastball, arrives late and ends up low and away.

The pitch is hard to master because the margin for error is small on both sides. A changeup thrown too hard becomes a mediocre fastball with a little movement. A changeup thrown with a different arm speed gives itself away. And one that hangs high in the strike zone is among the easiest pitches to hit a long way. Pitchers who rely on it spend years refining the feel.

The splitter: a fastball that falls off the table

The split-finger fastball is held with the index and middle fingers spread wide, either side of the ball, which sits deep between them. The pitcher throws it with fastball arm speed and a fastball release, but the grip prevents him from putting normal backspin on the ball. With little backspin, the pitch leaves the hand like a fastball, travels toward the plate on a similar line and then tumbles downward late. Hitters often describe the effect as the ball falling off a table.

The splitter's speed is lower than a fastball's, but the gap is smaller than the gap for a changeup. That is its distinctive trait: it asks the hitter to deal with a different vertical path at nearly the same timing. A hitter who sits on the fastball swings at the top of the zone and the pitch ends up in the dirt.

The pitch has a close relative in the forkball, in which the ball is wedged even deeper between the fingers so the pitch has still less spin and drops more. Hideo Nomo, who won the National League Rookie of the Year award in 1995, was the best-known forkball pitcher of his era in the major leagues. The names are often used loosely, and a pitcher's description of his own grip does not always match what tracking systems record.

Side by side

The table is a summary of how the pitches are usually described, not a prediction for any one pitcher. Every pitcher's version moves differently, and some changeups drop as much as splitters while some splitters run.

Why the changeup is for opposite-handed hitters

Baseball has a long-standing platoon effect: on average, hitters do better against pitchers who throw from the opposite side. A right-hander's slider, for example, moves toward his glove side, which means in on the hands of a left-handed hitter. Pitchers who rely on a fastball and a slider can find the platoon effect painful when they face a lineup full of opposite-handed hitters.

The changeup is the usual fix, because its fade moves away from the opposite-handed batter. A right-hander's slider moves in on a left-handed hitter, and his changeup moves the other way, down and away from lefties. That is why a starting pitcher with a reliable changeup can face lineups with many left-handed hitters, and why a pitcher without one is often moved to the bullpen, where he faces fewer hitters in a row. Managers know this, and the article on lineup construction explains how batting orders are built to exploit it.

Against same-handed hitters, the changeup is less natural. It fades toward the hitter's hands and can end up over the middle of the plate at slow speed. Most pitchers throw it less often to same-handed hitters, or throw it only when it can be buried below the knees.

The splitter is less sensitive to handedness because its path is mainly vertical. A hitter on either side sees the ball fall, and so the pitch is used as a strikeout pitch against both. That is part of why it became popular with relievers and starters who needed a second out pitch that did not depend on the batter's side.

Sequencing: how the pitches are used

Neither pitch works alone. The changeup and the splitter look like fastballs, so they only deceive a hitter who has been thinking about fastballs. A pitcher who throws a fastball high and inside, then a changeup low and away, has used two pitches that start on similar paths and end on very different ones. The hitter's view of the early flight is the same, and the late flight is not. Analysts call this pitch tunneling, and it is the reason a good changeup is often described as the best complement to a hard fastball.

Counts matter. With two strikes, a splitter below the zone can finish a plate appearance because hitters chase it. A changeup can be thrown early in the count as a strike, to show the hitter another speed, or late as a chase pitch. A pitcher who is behind in the count, 2-0 or 3-1, usually goes back to the fastball, since a missed off-speed pitch puts him further behind and a hanging one is easy to hit.

The pitches also reinforce the rest of a repertoire. A hitter who is worried about a changeup cannot sit on the slider, and a hitter who must guard against a splitter has to cover the bottom of the zone, which leaves the fastball up. The slider and sweeper and curveball articles cover the breaking balls that these pitches work against, and the knuckleball is the other pitch that depends on very little spin.

Pitchers best associated with each pitch

The following pitchers are widely known for the pitch listed, according to the standard accounts of their careers. The figures are career totals from the historical record, which does not track pitch types.

Several things stand out. The splitter's popularity grew in the 1970s and 1980s, and the pitch's champions include Sutter, who is credited with bringing it to prominence, and Roger Craig, a pitching coach and manager who taught it to many pitchers. The changeup's list is longer and includes both a closer, Hoffman, who relied on it after a shoulder injury, and several starters, which shows how widely useful it is.

Arm health and youth pitchers

For decades, coaches have debated whether the splitter is harder on the arm than other pitches. The spread grip puts stress on the fingers and, according to some pitchers and coaches, on the forearm and elbow. Research has not settled the question, and anyone with a specific concern about a pitcher's arm should talk to a doctor or athletic trainer rather than rely on a general claim.

The changeup is generally considered the gentler off-speed pitch, since it uses a fastball arm motion with less force, and many youth programs teach it before any breaking ball. This article does not give medical advice. Parents and coaches should follow the pitch-count and rest rules of their league and the guidance published by Little League International, and consult a doctor or a qualified coach about when a young pitcher should add any new pitch.

How the pitches show up in the data

Because the historical record has no pitch-by-pitch data, the main source for pitch types is tracking technology that classifies each pitch by speed, spin and movement. Those classifications can differ between systems. A splitter and a hard changeup can look alike, and a pitcher's own label may disagree with the computer's. When reading usage numbers on any site, look at how that site defines the pitches before comparing.

Strikeouts are where these pitches show up in the old-fashioned statistics. The season-by-season trend in strikeouts is the subject of the article on the three true outcomes, and the site's leaders page lists strikeout leaders by season for anyone who wants to look at which pitchers piled them up.

Common questions

Is a splitter a changeup? No. They are related only in the sense that both are off-speed pitches. The changeup is slower and fades arm-side, and the splitter is faster and drops.

Is a splitter the same as a forkball? They are close cousins. The forkball is held with the ball deeper between the fingers, so it has less spin and a steeper drop, and it is usually slower than a splitter.

Why do right-handed pitchers throw changeups to left-handed hitters? Because the pitch fades away from them, which is the opposite of the way a breaking ball moves into a lefty's swing.

Why do some pitchers never develop either pitch? The changeup needs feel, and the splitter needs hand size and finger length that some pitchers lack. Many pitchers work on one for years and abandon it.

Do these pitches matter for fantasy and betting? Strikeout rates matter in fantasy leagues, and a pitcher's repertoire is one clue to them. For betting, gambling carries risk, is for adults of legal age where it is legal, and help is available at 1-800-GAMBLER in the United States; the site offers no picks.

Where to go next

For the other half of a pitcher's repertoire, read the slider, the sweeper and the cutter and the curveball and the knuckle curve. The pitch that spins least of all is covered in the knuckleball article, and the effect of all these pitches on batting orders is in lineup construction and the math of the batting order. Search a pitcher's career line on the site's player pages.