A golf slice almost always comes from one of three main causes: an open clubface at impact (the cause of a slice for most amateurs), a club path that cuts across the ball from outside-to-in, or a combination of swing path and clubface working against each other. The first cause produces a ball flight that starts straight and curves hard right for a right-handed golfer. The second produces a ball that starts left and curves right. The combination, which is the most common cause of slice for amateurs, produces a ball that starts way left and slices violently right with the kind of sidespin that lands the ball two fairways over. The slice is not a random fault. It's a specific swing flaw, a message from your swing about what went wrong at impact, and the way the ball curves tells you which version you have. Once you know that, the fix is almost always one specific change you can make in a single session.
This guide walks through the three causes in detail, the swing mechanics behind each, the setup mistakes that bake the slice in before you swing, and the simple drills coaches use to fix each version. It closes with the timeline for actually getting rid of a slice and the questions golfers ask most about the cure.
What your slice is actually telling you
The ball flight tells you exactly which version of the slice you have. If the ball starts straight at your target and curves hard right, your swing path was mostly correct but the clubface was open at impact. That's a clubface problem, usually rooted in grip or wrist position. If the ball starts well left of target and curves back hard right, your swing path was outside-to-in (over-the-top) but the face was still open to the path and slightly open relative to the target. That's both a path and face issue. If the ball starts left and curves only slightly right or even straight, you're closer than you think and a small face adjustment fixes it.
Filming your swing tells you the same story from the inside. Titleist Performance Institute coaches diagnose slice patterns by looking at three checkpoints: the takeaway path, the position of the trail elbow in transition, and the clubface angle at impact. Two of those three are almost always off when a slice shows up consistently, and any one can lead to an open clubface at the moment of contact.
Cause 1: An open clubface at impact
The number-one cause of an amateur slice is an open club face at impact. The ball flies where the face is pointing at the moment of contact, and a face that is open even 4 degrees relative to the target line at impact will produce a noticeable slice with any club longer than a 9-iron. If your face is open by 8 degrees or more, you're hitting the ball with the kind of sidespin that takes it from the fairway into the trees, two fairways away from the target.
The clubface is open at impact for three reasons, in order of frequency. First: how you grip the club. A weak grip, where the lead hand sits too far on top of the club and the trail hand too underneath, makes it impossible for the hands to square the clubface no matter how hard they try. Second: a body that out-rotates the hands through impact, which leaves the face open as the chest spins ahead of the arms. Third: a tight grip pressure that prevents the wrists from releasing naturally through the ball, which can also result in an open clubface at the moment of contact. Any one of these will make a slicer.
The fix for an open face starts with how you grip the club. Set your lead hand on so you can see two and a half knuckles when you look down at address. The V formed between your thumb and forefinger should point at your trail shoulder. Set the trail hand on so its V also points at the trail shoulder. This is the neutral grip most modern coaches teach, and from this position the face has a fighting chance of arriving square at impact. Spend the first session of any slice fix on the grip alone, because no other change works until the grip allows it.
Cause 2: An outside-to-in swing path
The over-the-top, out-to-in swing path is the second major cause of golfers who slice the ball. The body throws the club out toward the ball line in the transition, the arms come down across the body line, and the club cuts across the ball from outside to inside throughout the swing. Combined with even a slightly open face, this incorrect swing path is the recipe for the classic banana ball.
The over-the-top move starts in transition, when the upper body fires before the lower body has a chance to shift weight to the lead side. The shoulders open early, the arms get thrown out, and the result is the coming over the top move you see at every range. The fix is sequencing: feel your lead foot fire into the ground before your arms move from the top. That single change, drilled with focus for two or three sessions, fixes the outside-to-in path for most amateurs.
A weighted swing trainer like the ONE Club Trainer is one of the most effective tools for grooving the correct downswing sequence because the added load makes the over-the-top move physically harder. The body learns the correct order simply because the wrong order becomes harder to execute. Ten minutes a day, three days a week, for a month is usually enough to ingrain the new sequence.
Cause 3: Setup mistakes that bake in the slice
Even with a good swing, you can pre-program a slice with setup mistakes. The most common setup faults that lead to slices: alignment that points the body well left of the target (which forces an over-the-top path to get back to the ball), a ball position with the ball too far forward in your stance (which catches the clubface mid-swing-arc with the face still opening away from the target), and posture that's too upright (which forces an arms-dominant lift on the backswing and an over-the-top return). On the course, a slicer who lines up perfectly for the fairway often watches the ball land two holes over because the body was unconsciously aiming behind the ball to compensate for the curve.
Check alignment by laying an alignment stick on the ground parallel to your target line and setting up addressing it. Most slicers will look down and see they're aimed 20 degrees left of their actual target. The body is unconsciously aiming left to compensate for the slice. Fix the alignment to actually point at the target and the slice often gets worse for a session or two before the swing reorganizes itself, but it's the necessary first step.
Drills that actually fix a slice
Three drills, run together, fix most amateur slices within four to six sessions.
Step one: the strong-grip drill. Re-set your grip to neutral or slightly strong (three knuckles visible on the lead hand). Hit 20 half-shots focusing on letting the wrists release naturally through impact. Don't think about face angle. Trust the grip.
Step two: the inside-out path drill. Place a tee or a small object six inches outside the target line of the ball. Make practice swings without hitting that outside object. The exaggerated inside path counteracts the over-the-top tendency. Hit 20 balls with this drill, then return to normal setup and see if the path has changed.
Step three: the alignment-stick body check. Lay an alignment stick across your shoulders at address. The stick should point at the target. If it points left, you're aiming left. Adjust your setup until the stick aligns properly, then hit 20 shots and swing the club along the line of the stick toward a more consistent swing.
Run those three drills in sequence for 30 minutes a session, three sessions a week, and most amateurs see meaningful slice reduction within two weeks. The full disappearance of the slice usually takes another month after that, as the new pattern locks in under pressure.
How long does it take to get rid of a slice?
Most amateurs see meaningful reduction in two to four weeks of focused drill work. Complete elimination, where the slice no longer shows up even under tournament pressure, takes more like two to three months. The bigger the slice you start with, the longer the timeline, because the old motor pattern has to be replaced rather than simply tweaked.
What I tell my own students: trust the process. The slice often gets worse for the first session or two as the new grip and path feel foreign. Then it starts straightening out. Then it disappears entirely. Players who panic and abandon the changes after one bad round are the ones who never get the cure. Players who commit for a full month almost always end up with a draw they didn't know they had in them, sometimes even a slight snap hook that needs dialing back.
What causes a golf slice questions
How do you get rid of a golf slice?
Strengthen the grip slightly, fix the alignment so your body actually aims at the target, and train an inside-out swing path with the tee drill above. Those three changes, done together, fix most amateur slices within four to six weeks of consistent practice. Without all three, the slice often comes back.
Is a slice always caused by an open clubface?
Not always, but it's the most common cause. The slice can also come from an outside-to-in swing path, even with a square face. Most amateur slices involve both faults at once. Filming a swing or hitting a few balls with a launch monitor at a fitting shop clarifies which one is your primary issue.
What is the 70/30 rule in golf?
The 70/30 rule refers to a few different concepts depending on the source. The most common version: 70 percent of your weight should be on your lead side at impact for solid contact. Improper weight transfer to the front foot is one of the things a slice fix has to address, because a player still hanging back on the trail side at impact almost always leaves the clubface open and combines that with a lack of rotation through the ball.
Will a swing trainer help me fix my slice?
Yes, especially for the path component of a slice. A weighted trainer punishes the over-the-top move because the added load makes the wrong sequence physically harder to execute. Used in slow-motion practice three or four times a week, it shortens the timeline to fix the path component of a slice by roughly half compared to drills with a normal club.
