Slice
Also known as: banana ball, cut shot (unintentional)
A slice bleeds away to the right for a right-handed golfer, costing both distance and fairway. It is the most common miss in the game, and it comes from a face pointing right of the head's direction of travel.
A slice is the most common miss in amateur golf, affecting an estimated 80% of recreational players at some point. Modern ball-flight laws (validated by launch-monitor data) show that the ball starts roughly where the face points at impact and then curves away from the path. A slice means the face is open to the path, imparting left-to-right sidespin for a right-hander.
The magnitude of a slice depends on two things working together. This means how far open the face is relative to the path (face-to-path), and how much clubhead speed generates spin. Because the driver has the longest shaft, least loft, and highest clubhead speed, the same face-to-path gap that produces a gentle fade with a 7-iron becomes a violent, 30-yard slice with the driver. This explains why many golfers slice their driver but hit relatively straight irons — the pattern is usually present in both; the driver amplifies it.
The two most common root causes are a weak grip (hands rotated too far toward the target at address) and an over-the-top downswing that delivers the club outside-in. Either cause alone can produce a slice; the two together make a slice very likely. The fastest single fix for most amateurs is strengthening the grip. This means rotating both hands away from the target until two or three knuckles of the lead hand are visible. This means which directly closes the face at impact without requiring any swing change.
Path corrections come second. Getting the club to approach more from the inside (positive path) allows the face-to-path gap to close naturally. Many teachers use the drill of feeling like you are swinging out toward "right field" (for a right-hander) to redirect the over-the-top movement that causes an out-to-in delivery.
Start with your grip. This means if your driver slice is bad, rotate both hands slightly away from the target. As a result, you can see two or three knuckles on your lead hand. This one change often reduces or eliminates the slice without touching the swing.
Monitor your face-to-path number on a launch monitor. A slice requires a face open more than about +3° to +5° relative to the path. If your path is already inside-out (+3° to +6°) but you still slice, the face is the sole cause and wrist/grip work is the fix. If both path and face are problematic, sequence the fix: grip first, path second.
Example
A drive that starts 10 yards left of the fairway center and curves 40 yards right into the rough is a classic over-the-top slice. This means the face is pointing right of the path at impact.
Why it matters
A slice costs 20–40 yards of distance (weak contact and a high, curveball trajectory) and severe accuracy problems. Identifying whether your slice is face-dominant, path-dominant, or both is the fastest route to a fix. SwingVantage diagnoses the face-to-path relationship free, so your first training session targets the actual cause.
How it shows up on video
On video, a slice often shows. This means (1) the divot pointing well left of target at the finish, revealing an out-to-in path. (2) the clubface visibly open at impact (leading edge angled back, visible from a face-on camera angle). (3) a "chicken wing" on the lead arm through impact. This usually accompanies an over-the-top delivery. When video quality is good, SwingVantage can provide visual cues for each of these patterns.
Common mistakes
- Trying to fix a slice by aiming further left — this reinforces the out-to-in path and makes the pattern worse.
- Swinging "harder" to overpower the curve — more speed with an open face just adds more sidespin.
- Changing the path before fixing the face — for most golfers the face is the faster fix and the path often self-corrects once the face improves.
- Confusing a pull with a slice — a pull goes straight left without curving; a slice starts somewhat left and curves right. They share the out-to-in path but differ in face angle.
In SwingVantage Motion Lab
SwingVantage Motion Lab can provide visual cues about your delivery direction and face presentation at impact from uploaded video. When video quality permits, the system can flag an out-to-in swing direction and an open face position. Because face-to-path is the primary slice driver, the analysis separates face-dominant from path-dominant patterns. As a result, the recommended fix targets the actual cause. This means not just the symptom.
Frequently asked questions
Why do I slice my driver but not my irons?
The driver has the least loft and the longest shaft, so the same open-face-to-path gap produces far more sidespin and a longer lever to mistime. The pattern is usually present with irons too — the driver just amplifies it sharply.
Is a slice caused by the path or the face?
Usually both, but the face is more often the dominant cause. The face controls roughly 75–85% of the ball's starting direction; the face-to-path gap controls the curve. Fix the face first (grip, wrist position), then the path.
Can I fix a slice by strengthening my grip alone?
For many golfers, yes. A stronger grip directly closes the face at impact. If the path is also severely out-to-in, you may need to address that as well. This means but the grip fix alone often reduces the slice enough to make golf playable. At the same time, the path work continues.
What is the difference between a slice and a fade?
A fade is a controlled left-to-right shape that starts at or slightly left of target and curves gently to the right, typically with a small face-to-path gap of 2–4°. A slice is the same direction but uncontrolled — a large face-to-path gap of 8° or more, severe curve, and significant distance loss.
Related terms
- Face AngleFace angle is where the clubface points at impact, relative to the target line, in degrees. It determines roughly 75–85% of the ball's starting direction.
- Club PathClub path is the horizontal direction the clubhead is moving through impact, relative to the target line, in degrees. Positive is in-to-out (a draw bias); negative is out-to-in (a fade or slice bias).
- Face-to-PathFace-to-path is the difference between face angle and club path at impact. It is the single number that determines how much, and which way, the ball curves.
- GripThe grip is how your hands hold the club. It is the only contact you have with the club, so it controls the clubface more than any other fundamental.
- Over the TopOver the top means the downswing starts by throwing the club outside the backswing plane. This produces an out-to-in path that causes pulls, pull-slices, and loss of distance.
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