Every pitch starts as a grip, but the grip is only the first link in the chain. What the hitter sees is the result of four things working together: how fast the ball is thrown, how much it spins and around which axis, where the seams sit as it flies, and how the hand moves through release. This hub explains those pieces in plain language, compares the major pitches with real Statcast data, and links to a step-by-step grip guide for each one.

How a grip becomes movement

  • Spin and the Magnus effect. A spinning ball is pushed in the direction its front surface is turning. Backspin lifts a four-seam fastball so it drops less than gravity alone would make it; topspin pushes a curveball down; side spin moves the ball sideways.
  • Spin axis comes from the hand. Jinji, Sakurai, and Hirano (2011) found that a fastball's spin axis lines up with the orientation of the hand just before release, because the ball spins off the fingertips in the plane of the palm and fingers. Where your palm faces at release largely decides the direction of spin.
  • Not all spin moves the ball. Jinji and Sakurai (2006) showed spin creates the most movement when the axis is perpendicular to the ball's flight. Spin around an axis pointing toward the plate (gyro spin, like a football spiral) adds little movement. The share of spin that does move the ball is called spin efficiency, and it is the main difference between a gyro slider and a sweeper.
  • Seam orientation can add movement. Research from Barton Smith's lab at Utah State University described the seam-shifted wake: certain seam positions make air separate unevenly, pushing the ball in ways spin does not explain. Driveline found the average MLB sinker gained more than 3 inches of run and nearly 4 inches of depth from these non-Magnus effects.
  • Hand action and speed. Pronation (getting to the inside of the ball) suits changeups and sinkers; supination (getting to the outside) suits curveballs and sweepers. Speed matters too, because faster pitches spin more (Nagami et al., 2011) and give the ball less time to move.

Driveline's grip guide sums up the practical rule well: the grip is only as important as the movement profile it creates. That is why every guide below ends with a measurement plan, not just a photo of fingers on a ball.

Choose pitches by arm slot and hand type

The same grip produces different shapes from different arm slots. A high slot tends to make it easier to create four-seam ride and top-to-bottom breaking balls like the curveball and gyro slider. Lower slots tend to suit sinkers and sweepers; Driveline's 2026 reporting on lower arm slots notes that sinkers and sweepers benefit from lower slots, with tradeoffs. Our guide to choosing pitches by arm slot walks through each slot.

Hand type is the second filter. Natural pronators often find changeups and sinkers easy; natural supinators often find breaking balls easier and changeups harder. Those are tendencies, not rules. Driveline's 2025 fastball article describes pitchers who have used pitch design to throw shapes outside their natural bias, and notes that 92 of 253 qualified MLB starters in 2025 threw three or more fastball types.

Grip guides for every major pitch

Fastball

How to throw a four-seam fastball

Grip, backspin cues, and how ride works, with Statcast averages for MLB right-handers.

Read guide

Fastball

How to throw a two-seam fastball or sinker

Arm-side run and sink, and why seam orientation matters so much for this pitch.

Read guide

Fastball

How to throw a cutter without duplicating your slider

A firm glove-side fastball shape and how to keep it separate from the slider.

Read guide

Fastball

Why adding another fastball shape can unlock an arsenal

When a sinker, cutter, or second four-seam shape earns a spot.

Read guide

Offspeed

How to throw a changeup

Circle change, split-change and other variants, plus pronator and supinator fit.

Read guide

Offspeed

Splitter or changeup: which offspeed pitch fits you?

How the splitter kills spin for late depth, and when it beats a changeup.

Read guide

Breaking ball

How to throw a curveball

12-6, knuckle curve, and power curve grips, plus the research on youth curveballs.

Read guide

Breaking ball

How to throw a slider

Gyro slider versus sweeper, grip, cues, and how to test the shape.

Read guide

Breaking ball

How to throw a sweeper without turning it into a slow curveball

The horizontal breaking ball and who it fits.

Read guide

Quick comparison: speed and movement by pitch

These numbers come from Baseball Savant's pitch movement leaderboard for the 2026 MLB regular season: qualified right-handed pitchers, averaged and weighted by pitches thrown. The speed gap is the median difference between each pitcher's pitch and his own primary fastball (four-seamer, or sinker if he had no qualifying four-seamer). Induced vertical break (IVB) removes gravity: positive numbers mean the pitch "rides" relative to a spinless ball, negative numbers mean it drops extra. Horizontal break is the average size of the side-to-side movement; direction is for a right-handed pitcher. Role is the typical use described in the linked guides; individual pitchers vary.

PitchTypical roleAvg velocityMedian speed gap to own fastballAvg IVBAvg horizontal break (RHP)
Four-seam fastballPrimary fastball, ride at the top of the zone95.3 mphBaseline15.7 in7.8 in arm side
Sinker / two-seamFastball with run and sink, weak contact94.5 mph0.4 mph slower than four-seam7.6 in15.1 in arm side
CutterFirm glove-side fastball shape90.3 mph4.2 mph slower8.1 in2.6 in glove side
SliderFirm breaking ball, chase and strikes87.0 mph8.5 mph slower1.3 in3.8 in glove side
SweeperHorizontal breaking ball83.6 mph11.5 mph slower1.0 in13.4 in glove side
Curveball (incl. knuckle curve)Topspin breaking ball, changes eye level81.2 mph13.6 mph slower-10.3 in9.2 in glove side
ChangeupSpeed change, often vs opposite-handed hitters86.9 mph7.2 mph slower3.8 in14.2 in arm side
SplitterLow-spin offspeed pitch with late depth86.9 mph8.1 mph slower2.9 in11.3 in arm side

Two patterns stand out. First, every pitch except the sinker gives up real velocity relative to the fastball, which is why "keep fastball arm speed" is the most repeated cue in pitch design. Second, the big separation is vertical: a four-seamer and a curveball are about 26 inches apart in IVB, while the slider, sweeper, changeup, and splitter all sit within a few inches of zero. Hitters judge height late, which is a large part of why those pitches work off a riding fastball. A left-hander's pitches move the same amounts in the mirror-image direction.

What order should young pitchers learn pitches?

The American Sports Medicine Institute recommends learning basic throwing first, then fastball pitching, then the changeup. MLB and USA Baseball's Pitch Smart guidelines recommend avoiding breaking balls before age 13, as a 2021 study comparing youth pitching with those guidelines summarizes them. The lab research on curveballs is more reassuring than many parents expect (Dun et al., 2008, found the fastball produced higher elbow and shoulder loads than the curveball in youth pitchers), but ASMI notes that young pitchers may not yet have the development and coaching to throw one well. The curveball guide presents the evidence on both sides, and total pitching volume remains the bigger lever; see our safe pitching guidelines.

How to learn a new grip without derailing your season

  • Define the job first. A new pitch should fill a gap in your arsenal, not duplicate a pitch you already have.
  • Measure it. Use a tracking device such as Rapsodo or TrackMan, or high-frame-rate slow-motion video, to see spin, axis, and movement. Feel alone is unreliable.
  • Change one thing at a time. Finger position, pressure, thumb, or cue, then a block of reps, then compare averages.
  • Count it as workload. New-pitch reps are throws. Fit them inside your bullpen count at first, log them, and grow the total as your chronic workload grows so your acute:chronic ratio stays steady. The pitching workload calculator shows the effect.
  • Pick fresh days. Do grip work when readiness is good. Pain means stop and see a qualified clinician.

Frequently asked questions

What pitch should I learn after a fastball?

For most pitchers, a changeup. ASMI recommends learning the fastball and then the changeup before breaking balls, and lab studies found the changeup produced the lowest elbow and shoulder loads of the common pitches.

Does the grip alone decide how a pitch moves?

No. Movement comes from velocity, spin rate, spin axis, spin efficiency, seam orientation, and arm slot. The grip sets those up, but the hand position at release and the slot change the result, so measure the pitch rather than trusting the grip picture.

How much slower should my offspeed and breaking pitches be?

In 2026 MLB data from Baseball Savant, median gaps to each pitcher's own fastball were about 4 mph for cutters, 7 mph for changeups, 8 mph for splitters and sliders, 11.5 mph for sweepers, and 13.6 mph for curveballs.

How many pitches does a pitcher need?

Enough to give hitters different speeds and movement lanes. Many successful pitchers win with two or three pitches that clearly separate, while others carry several fastball shapes. Add a pitch when it fills a gap, not to collect pitch names.

Pitch grips in Pitch AI

Grip videos and pitch design recommendations in one app

Pitch AI includes a pitch grip video library you can filter by pitch type, handedness, arm slot, role, and pronator or supinator bias, plus pitch design recommendations that suggest a grip starting point, release cues, and short test blocks, and can use ball-flight data you import from TrackMan or Rapsodo. New-pitch work sits inside your throwing program and workload tracking, so a grip experiment never happens off the books.

Download on the App Store Get it on Google Play

Sources and further reading