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The Workshop Review · Technique & Aiming
The Ghost Ball
Aiming Method
A clear way to visualize a cut shot—plus the real-world corrections that turn simple geometry into reliable pocketing.
The ghost ball method gives you something concrete to aim at: the exact place where the cue ball's center should arrive to send the object ball toward the pocket.
It is one of pool's clearest starting points for learning cut-shot geometry. It is not magic, and it is not a complete model of every shot. Used correctly, however, it separates two problems that beginners often mix together: finding the shot line and delivering the cue ball along it.
The Concept
What Is the
Ghost Ball?
Imagine a second cue ball frozen against the object ball at the moment of impact. That imaginary cue ball is the ghost ball. Its center marks the destination for the center of the real cue ball.
Start with the intended object-ball path—from the center of the object ball toward the pocket. Extend that line backward through the object ball. The ghost-ball center sits on that extension, one ball diameter from the object-ball center. For standard pool balls, that center-to-center distance is approximately 2.25 inches.
The Geometry
Build the Line
From the Pocket Back
The sequence matters. First choose the pocket. Next trace the centerline from the pocket through the object ball. Then place the imaginary cue ball on the far side of the object ball so the two balls are touching. Finally, align the real cue ball's center with the ghost-ball center.
This describes the ideal geometric collision between equal balls. It gives you a repeatable reference line instead of asking you to guess at a tiny contact point on the curved surface of the object ball.
The ghost ball is a starting line, not a promise. Good players learn the geometry first and then calibrate it to the speed, spin, cloth and condition of the balls.
The Real Table
Why Perfect Geometry
Can Still Miss
Real balls have friction. During an angled collision, that friction can push—or “throw”—the object ball slightly away from the frictionless geometric line. Cut angle, shot speed, ball cleanliness and sidespin can all change the amount and direction of that throw.
If you use sidespin, cue-ball deflection and curve can also move the cue ball away from the line on which the cue was pointed. That is why the pure ghost-ball position is most useful as a baseline while learning with center-ball hits and controlled speed.
Practical calibration
If a repeatable center-ball shot misses to the same side several times, do not abandon the method. Check your stroke first, then make a small aiming adjustment and record the speed and cut angle. Calibration is part of aiming—not evidence that geometry has stopped working.
Step by Step
A Repeatable
Shot Routine
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Choose the pocket and entry line
Stand where you can see the object ball and pocket together. Decide whether the pocket accepts the intended line before you think about cue-ball position.
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Place the ghost ball
Extend the pocket line through the object-ball center and place the imaginary ball on the opposite side, tangent to the object ball.
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Choose a visible reference
You may find it easier to remember the ghost-ball center, its rear edge or the point on the cloth directly beneath its center. Use whichever remains clearest as you lower into the stance.
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Enter the stance on the line
Bring the cue and body into position without losing the chosen line. If it looks wrong once you are down, stand up and reset instead of steering the cue during delivery.
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Deliver and observe
Use a smooth center-ball stroke at controlled speed. Watch where the object ball enters—or misses—the pocket and whether the cue ball followed the intended line.
Practice
Train the Picture,
Then Test the Shot
Drill 01
Find the center
Remove the object ball. Place a flat paper reinforcement ring where the ghost-ball center would be and practice stopping the cue ball on it. Never leave a coin or chalk cube in the ball's path.
Drill 02
Repeat one cut
Set one moderate cut angle and shoot it ten times with center-ball contact at the same speed. Record which side of the pocket receives the ball.
Drill 03
Change the distance
Keep the object ball and pocket line fixed while moving the cue ball farther away. This tests alignment without changing the required contact geometry.
Drill 04
Add speed last
Once the line is reliable, repeat the shot softly, at medium speed and firmly. Observe the different throw and cue-ball outcomes.
What Goes Wrong
Common Pitfalls
and Better Fixes
Pitfall 01
A vague ghost ball
Fix: Mark the center point during setup with a flat reinforcement ring, then remove or avoid any object that could deflect a rolling ball.
Pitfall 02
Ignoring throw
Fix: Treat geometric aim as the baseline. Calibrate slowly and consistently for the table, speed and spin you actually use.
Pitfall 03
Steering mid-stroke
Fix: Make the aiming decision while standing. If the line looks wrong after you lower into the stance, stand up and begin again.
Pitfall 04
Adding sidespin too early
Fix: Learn center-ball delivery first. Sidespin introduces deflection, curve and throw that can hide whether your basic alignment is sound.
// Make the invisible line repeatable
Use the ghost ball to find a disciplined starting line. Then let carefully recorded practice teach you the small corrections that geometry alone cannot supply.
