Ball Flight Decoded
A short, visual guide for anyone who's ever asked "why did it go there?"

The ball only listens to two things.

At the moment your clubface meets the ball, two things get set: where the face is pointing, and which way the club is moving. Where the shot starts and how far it curves both trace straight back to those two numbers.

fade straight draw
Tee to green: every shot is a mix of a start line and a curve. Same swing, three outcomes — set entirely by face and path.
1

What decides where it starts

Think of the clubface as a wall the ball bounces off of. The ball leaves in almost exactly the direction that wall was facing at the moment of contact.

Launch monitors like TrackMan settled a decades-old argument about this: for a normal driver swing, roughly 85% of starting direction comes from clubface angle, and only about 15% comes from the direction the club was traveling — its swing path. With shorter, steeper-swinging clubs like a wedge, path plays a somewhat bigger role, but face angle still leads.

That means the fastest way to change your starting line is to change where the face is pointing — not where you're swinging.

Closed face
Aimed left of target → ball starts left.
Square face
Aimed at target → ball starts straight.
Open face
Aimed right of target → ball starts right.
2

What decides how it curves

Curve comes from the gap between where your face is pointing and where your path is swinging — not from either one alone.

If the face and path point the same direction, the ball flies straight along that line, no matter which way it's aimed. But the moment they disagree, the ball picks up sidespin — and sidespin is what bends a golf shot through the air.

Face open relative to path tilts the spin axis one way and curves the ball right (for a right-handed golfer). Face closed relative to path tilts it the other way and curves the ball left. The bigger the gap, the sharper the curve.

target line face path resulting curve → tilted spin axis
Clubface direction Swing path direction Curve caused by the gap
3

Try it yourself

Set a clubface angle and a swing path, both measured against the target line, and watch what actually happens to the shot.

0°
Negative = closed (left of target) · Positive = open (right of target)
0°
Negative = in-to-out from the left · Positive = out-to-in from the right
Start direction
Straight
Face vs. path gap
0°
Straight
Face matches path — the ball starts at the target and holds its line.

Simplified for teaching: start direction ≈ 80% face + 20% path, curve driven by the face-to-path gap. Real curve also depends on speed, spin rate, and club loft. Shown for a right-handed golfer — mirror it for a lefty.

4

Why spin bends a 1.68-inch ball

↑ curve force

A golf ball's dimples aren't decoration — they trip the air around the ball into a thin turbulent layer that clings to the surface longer, cutting drag dramatically compared to a smooth ball.

That same clinging airflow is what makes spin so powerful. A spinning ball drags air faster around one side than the other, and faster-moving air means lower pressure (Bernoulli's principle). That pressure difference pushes the ball sideways or upward, off its straight-line path — this is the Magnus effect, the same force that curves a spinning baseball or soccer ball.

Backspin alone just lifts the ball and holds it in the air longer. But tilt that spin axis — exactly what a face-to-path gap does — and part of the force now points sideways instead of up. That sideways slice of the Magnus effect is the entire reason a golf shot curves.

5

Reading your own shot shape

Six shapes cover almost everything you'll see on the range. Each one tells you exactly what your face and path were doing.

Slice

starts near target, curves hard right
Face is well open relative to path — usually because the path is cutting across from out-to-in while the face stays pointed closer to the target.
To straighten itWork on swinging more from the inside, and let the face rotate closed a touch faster through impact.

Hook

starts near target, curves hard left
Face is well closed relative to path — often an in-to-out path paired with a face that's rotating shut aggressively.
To straighten itSoften your grip and release, and feel the face staying open a fraction longer through the ball.

Push

starts right, flies straight
Face and path are matched to each other, but both are aimed right of target — no curve, just a straight miss.
To straighten itCheck your setup first — aim and shoulder alignment are the usual cause, not your swing itself.

Pull

starts left, flies straight
Same idea as a push, mirrored — face and path agree, but both are aimed left of target.
To straighten itRecheck alignment before you swing; the ball is doing exactly what a matched face and path told it to.

Draw

starts right of target, gentle curve left
A small, controlled version of a hook — face just a few degrees closed relative to path.
To add one on purposeAim your path a touch to the right of target and let the face close relative to it, not relative to the target.

Fade

starts left of target, gentle curve right
A small, controlled version of a slice — face just a few degrees open relative to path.
To add one on purposeAim your path a touch to the left of target and hold the face slightly open relative to it.