Circle Changeup Grip
Also known as: OK grip changeup, circle change
The circle changeup grip forms a circle with the thumb and index finger on the side of the ball. It is built to cut velocity without changing arm speed.
Fastball grips rely on the index and middle fingers for backspin. The circle change instead moves the index finger off the top of the ball. It curls that finger against the thumb in an "OK" shape on the side. The ball is released mostly off the middle, ring, and pinky fingers. That naturally reduces velocity by 8-12 mph below the fastball while the arm continues at full fastball speed. This is the entire point of a changeup. Many circle changeups also pick up modest arm-side fade from the grip's natural pronation (the hand turning over) at release.
The biggest technical challenge is resisting the urge to guide or steer the pitch. The reduced velocity already tempts pitchers to slow their arm down. That telegraphs the pitch and defeats its purpose. A well-thrown circle changeup looks exactly like the fastball out of the hand through the first two-thirds of flight. Then it arrives noticeably later than the hitter's timing expects.
Example
He set up the changeup with his circle grip. This keeps his arm speed identical to his fastball, and the hitter was out in front and rolled it weakly to second base.
Why it matters
A changeup is only as effective as its arm-speed disguise, so grip alone is not enough. Film your fastball and changeup from the same spot and compare the arm speed by eye. Motion Lab does not measure arm speed or read your grip.
How it shows up on video
On video, a well-executed circle changeup shows identical arm speed and arm path to the fastball, with only the ball's slower flight distinguishing it after release. A common visible flaw is a noticeable deceleration through the delivery that tips the pitch early.
Common mistakes
- Slowing the arm down to control the reduced velocity, which telegraphs the pitch to any attentive hitter watching arm speed
- Gripping the ball too tightly with the "circle" fingers, which can add unwanted velocity back and shrink the speed gap from the fastball
- Locating the changeup up in the zone, where its slower velocity is easy to identify and elevate for hard contact
In SwingVantage Motion Lab
Motion Lab does not read your grip or measure arm speed, so it cannot tell whether your arm slows on the changeup. Compare changeup and fastball clips filmed from the same spot.
Frequently asked questions
How much slower should a circle changeup be than the fastball?
A common target is 8-12 mph slower, though the exact gap matters less than keeping the arm speed and arm path identical to the fastball through release.
Related terms
- Changeup (Pitching)The changeup is an off-speed pitch thrown with fastball arm speed but held deeper in the hand to reduce velocity by 8–15 mph, disrupting timing.
- Pitch VelocityPitch velocity is the speed of the ball at release, measured in miles per hour — the most commonly cited indicator of pitching power and arm strength.
- Splitter / ForkballThe splitter is an off-speed pitch gripped with the fingers spread across the seams. This produces late diving action that generates weak contact or swings below the zone.
- Tunnel PointThe tunnel point is the spot in a pitch's flight where two pitch types still share nearly the same path. It is roughly where the batter must decide to swing.
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