Baseball · Level 3: Pre-Intermediate · Sub-level 3.4
Pitch Types
10 tests · 100 facts · updated 28 October 2026 · markdown
The four-seam fastball, two-seamers and sinkers, the cutter, slider and sweeper, the curveball, the changeup, the splitter, the knuckleball, rare pitches and building a pitch mix.
Each test below is ten questions on Insporta. The list under a test is what the questions check: one fact per question, with the source it was written from. Read it before the test, or come back from a wrong answer.
Test 1The four-seam fastballTake a test
Gripped across the horseshoe, the ball shows four seams in each rotation.
Source: General baseball reference · recall
Strong backspin makes it drop less than the hitter expects.
Source: General baseball reference · recall
MLB four-seamers average in the low to mid 90s.
Source: General baseball reference · recall
Up in the zone, its carry makes hitters swing under it.
Source: General baseball reference · recall
Its simple grip and straight path make it easiest to command.
Source: General baseball reference · recall
Hitters describe some fastballs as heavy when they seem to bore in and sink.
Source: General baseball reference · recall
Velocity is measured in miles per hour on the radar.
Source: General baseball reference · recall
Fastballs are quickest; curveballs usually slowest.
Source: General baseball reference · applied
Velocity climbs with age and level.
Source: General baseball reference · applied
Fingers across the horseshoe make the four-seam grip.
Source: General baseball reference · applied
Test 2Two-seamers and sinkersTake a test
The fingers run with the seams where they come closest together.
Source: General baseball reference · recall
A sinker moves down and towards the pitcher's arm side.
Source: General baseball reference · recall
Hitters swing over the top of a sinking pitch and pound it into the ground.
Source: General baseball reference · recall
A sinkerballer's outs come from ground balls.
Source: General baseball reference · recall
A grounder is needed for a double play, and sinkers produce grounders.
Source: General baseball reference · recall
With the infielders back, a ground ball to them lets the runner on third come home.
Source: General baseball reference · recall
Two-seamers and sinkers move towards the pitcher's throwing-arm side.
Source: General baseball reference · recall
Sinker, grounder, two outs.
Source: General baseball reference · applied
Sinkers produce grounders; high fastballs produce fly balls and whiffs.
Source: General baseball reference · applied
Down and in on the arm side is the sinker's path.
Source: General baseball reference · applied
Test 3The cutterTake a test
A cutter is a fastball that darts a few inches to the glove side late.
Source: General baseball reference · recall
Rivera's cutter made him the career saves leader.
Source: General baseball reference · recall
A right-hander's cutter moves in on a left-handed hitter's hands.
Source: General baseball reference · recall
Cutters are usually a little slower than the four-seam fastball.
Source: General baseball reference · recall
Moving the fingers a little off centre gives the late cut.
Source: General baseball reference · recall
The break comes only in the last few feet.
Source: General baseball reference · recall
It runs in on left-handers' hands.
Source: General baseball reference · recall
The cutter breaks a little; the slider breaks more.
Source: General baseball reference · applied
The late cut jams the hitter.
Source: General baseball reference · applied
The cutter's late break towards a lefty's hands breaks bats.
Source: General baseball reference · applied
Test 4The sliderTake a test
A slider breaks to the glove side, with some downward movement.
Source: General baseball reference · recall
Sliders sit between fastballs and curveballs in speed.
Source: General baseball reference · recall
The sweeper became popular in the 2020s for its wide horizontal break.
Source: General baseball reference · recall
Moving away from a same-side hitter, the slider leaves the barrel behind.
Source: General baseball reference · recall
Aimed at the hitter's back foot, it dives under his swing.
Source: General baseball reference · recall
A slurve has the speed of a slider and the shape of a curve.
Source: General baseball reference · recall
Tunnelling the slider off the fastball causes swings and misses.
Source: General baseball reference · recall
Sweepers break the most sideways; four-seamers barely at all.
Source: General baseball reference · applied
Away from a same-side hitter, the slider escapes the bat.
Source: General baseball reference · applied
Big glove-side sweep away from a same-side hitter is the sweeper.
Source: General baseball reference · applied
Test 5The curveballTake a test
Like clock hands from 12 to 6, it breaks straight down.
Source: General baseball reference · recall
Topspin makes the ball dive.
Source: General baseball reference · recall
After fastballs, a slow curve throws the hitter off.
Source: General baseball reference · recall
Tucking a fingertip on the ball gives a sharper spin.
Source: General baseball reference · recall
Many curves pop up slightly out of the hand before diving.
Source: General baseball reference · recall
Many coaches want young pitchers to master the fastball and changeup first.
Source: General baseball reference · recall
'Uncle Charlie' is old slang for a good curveball.
Source: General baseball reference · recall
The 12-6 curve drops most; the four-seamer least.
Source: General baseball reference · applied
A curve may pop up, then dive late.
Source: General baseball reference · applied
Straight downward break is the 12-6 curve.
Source: General baseball reference · applied
Test 6The changeupTake a test
Matching the fastball's arm speed hides the slower pitch.
Source: General baseball reference · recall
Thumb and index finger form a circle on the side of the ball.
Source: General baseball reference · recall
The speed gap is what fools hitters.
Source: General baseball reference · recall
It fades away from opposite-handed hitters.
Source: General baseball reference · recall
Most changeups fade and sink like a slower two-seamer.
Source: General baseball reference · recall
Hitters say it looks like someone pulled it back on a string.
Source: General baseball reference · recall
Many coaches see the changeup as a safe second pitch for young arms.
Source: General baseball reference · recall
Same arm speed, slower ball, early swing.
Source: General baseball reference · applied
The curve is slowest; the cutter is close to fastball speed.
Source: General baseball reference · applied
The circle grip makes the circle change.
Source: General baseball reference · applied
Test 7The splitterTake a test
Splitting the fingers wedges the ball between them.
Source: General baseball reference · recall
It looks like a fastball, then tumbles down late.
Source: General baseball reference · recall
Many Japanese pitchers throw splitters and forkballs.
Source: General baseball reference · recall
A forkball sits deeper between the fingers and is usually slower.
Source: General baseball reference · recall
The late drop makes hitters swing over it.
Source: General baseball reference · recall
Ohtani's splitter is one of his best strikeout pitches.
Source: General baseball reference · recall
Swinging over the top of it usually produces ground balls.
Source: General baseball reference · recall
Splitters are thrown with very little spin.
Source: General baseball reference · applied
Fastball look, late drop, miss.
Source: General baseball reference · applied
Spread fingers make the split-finger grip.
Source: General baseball reference · applied
Test 8The knuckleballTake a test
With almost no spin, the air pushes it about unpredictably.
Source: General baseball reference · recall
Despite the name, most knucklers grip it with fingertips or nails.
Source: General baseball reference · recall
Even catchers do not know where it will go.
Source: General baseball reference · recall
Thrown slowly with little effort, it is easy on the arm.
Source: General baseball reference · recall
Dickey won the 2012 NL Cy Young with the Mets.
Source: General baseball reference · recall
Slow, wandering pitches are hard to catch and easy to steal on.
Source: General baseball reference · recall
Few pitchers can throw it with enough control.
Source: General baseball reference · recall
The knuckler barely spins; the four-seamer spins most of the three.
Source: General baseball reference · applied
The wandering path fools hitters and catchers alike.
Source: General baseball reference · applied
A wandering, barely spinning pitch is a knuckleball.
Source: General baseball reference · applied
Test 9Rare and unusual pitchesTake a test
A screwball breaks towards the pitcher's arm side.
Source: General baseball reference · recall
Valenzuela's screwball led 'Fernandomania' in 1981.
Source: General baseball reference · recall
The eephus floats high and drops slowly into the zone.
Source: General baseball reference · recall
Doctoring the ball has been banned since 1920.
Source: General baseball reference · recall
Holding the ball in the palm kills its speed.
Source: General baseball reference · recall
Some put strain on the arm; others take years to learn.
Source: General baseball reference · recall
Its spin axis points at the plate, so it breaks very little.
Source: General baseball reference · recall
The eephus is the slowest of all.
Source: General baseball reference · applied
1920, 1981 and the 2020s.
Source: General baseball reference · applied
A slow, high lob is the eephus.
Source: General baseball reference · applied
Test 10Building a pitch mixTake a test
Variety keeps hitters guessing.
Source: General baseball reference · recall
Arsenal means all the pitches a pitcher uses.
Source: General baseball reference · recall
Facing a hitter once, a reliever needs fewer looks to keep him off balance.
Source: General baseball reference · recall
Pitch mix shows his percentages of each pitch.
Source: General baseball reference · recall
Showing something different keeps hitters off balance.
Source: General baseball reference · recall
Pitches that tunnel together and split late are hard to read.
Source: General baseball reference · recall
Even a seldom-used pitch makes hitters think about it.
Source: General baseball reference · recall
Many learn the fastball first, then a change, then a breaking ball.
Source: General baseball reference · applied
Starters face hitters several times and need the most variety.
Source: General baseball reference · applied
A breakdown of how often he throws each pitch is his pitch mix.
Source: General baseball reference · applied
Sources
General baseball references, WBSC and league material, coaching manuals; original questions authored, nothing reproduced. Numbered rules belong to the Rules category.
- General baseball reference100