The slice is the most common miss in golf. It plagues beginners and experienced players alike, sending the ball curving dramatically from left to right (for right-handed golfers) and robbing shots of distance, accuracy, and confidence. If you have spent rounds watching your drives drift helplessly toward the trees on the right, you are in overwhelming company—estimates suggest that more than 70 percent of recreational golfers fight a slice to some degree.
The good news is that the slice has well-understood causes, and every one of them is fixable with the right drills and a clear understanding of the ball flight laws that produce the curve. This guide breaks down the mechanics of a slice, identifies the most common root causes, and provides specific practice drills you can use on the range to straighten your shots. If you have also been struggling with inconsistent iron play, our guide to hitting irons consistently addresses many of the same swing fundamentals.
What Causes a Slice: The Ball Flight Laws
A slice is produced when the clubface is open relative to the club’s path at impact. The ball starts in the direction of the face angle (or close to it) and curves away from the path. For a right-handed golfer, this means the face is pointing right of the path, imparting clockwise sidespin (technically, a tilted spin axis) that curves the ball to the right.
There are two distinct scenarios that produce a slice. The first is an open face with an out-to-in path: the club swings across the ball from outside the target line to inside it, and the face is open to that path. This produces a shot that starts left of the target and curves hard right—the classic pull-slice. The second is an open face with a relatively straight or even in-to-out path: the face simply fails to square up at impact, producing a push-slice that starts right and keeps going right. Understanding which pattern you have is the first step toward fixing it.
The Three Root Causes (and How to Fix Each)
1. Grip: The Foundation of Face Control
The grip is the single point of connection between your body and the club, and a weak grip is the most common cause of a slice. In golf terminology, a “weak” grip does not refer to grip pressure—it means the hands are rotated too far to the left on the handle (for a right-handed player), which makes it extremely difficult to square the clubface at impact without compensating elsewhere in the swing.
The fix: Strengthen your grip. When you look down at your left hand on the club, you should see two to three knuckles. The V formed by your left thumb and index finger should point toward your right shoulder. Place your right hand so the V formed by the right thumb and index finger also points toward the right shoulder or slightly right of it. This “stronger” grip position naturally promotes face closure through impact without requiring conscious manipulation. Spend an entire range session hitting shots with the strengthened grip before judging the results—it will feel uncomfortable at first but should produce noticeably less left-to-right curve within twenty to thirty balls.
2. Swing Path: Out-to-In Is the Slice Factory
An out-to-in swing path—where the club approaches the ball from outside the target line and cuts across it—is the engine of most slices. This path creates the left-to-right sidespin that sends the ball curving into trouble. The out-to-in path usually originates from one of several faults: starting the downswing with the shoulders instead of the lower body, casting the club from the top (releasing the wrist angle too early), or swinging the arms across the body rather than down and through.
The fix: Develop an in-to-out or neutral path. The feeling you are after is swinging the club toward right field (for a right-handed golfer) rather than toward the shortstop. The drills below target this specific change. The transition from the top of the backswing is critical—initiate the downswing with a slight lateral bump of the hips toward the target, which drops the arms into the “slot” and sets up an inside approach. If you have been working on other swing issues like fat and thin shots, you will find that many of the same path corrections apply—our fat and thin shots guide covers the related ground contact patterns.
3. Body Rotation: Stalling Creates an Open Face
When your body stops rotating through the ball—a fault called “stalling”—your hands and the clubface have no choice but to flip or stay open. Stalling often looks like a golfer who makes contact with their hips and chest still facing the ball rather than rotating through to face the target. The arms pass the body, the face stays open, and the ball slices.
The fix: Commit to full body rotation through impact. At the finish position, your belt buckle and chest should face the target, your weight should be fully on your front foot, and your back heel should be off the ground. Practice making swings where you exaggerate the follow-through, holding the finish with your chest pointing left of the target. This forces your body to rotate through rather than stall, which pulls the face closed naturally.
Five Drills to Fix Your Slice
Drill 1: The Headcover Gate
Place a headcover or small towel about six inches outside and two inches behind the ball (relative to your stance). The headcover creates a gate that forces your club to approach from inside the target line. If you swing out-to-in, you will strike the headcover before hitting the ball. Practice making swings that miss the headcover on the inside, delivering the club from a more neutral or inside path. Start with half swings and gradually increase to full swings as the new path feels more natural.
Drill 2: Closed Stance Drill
Aim your feet, hips, and shoulders 20 to 30 degrees right of the target (for a right-handed golfer) while keeping the clubface aimed at the target. This closed stance forces an in-to-out swing path because your body alignment dictates the direction of your swing. Hit twenty to thirty balls from this exaggerated closed position. The ball should start right of the target and draw back toward it. Once you can produce a draw from the closed stance, gradually reduce the degree of closure until you are hitting draws from a square stance.
Drill 3: The Split-Hand Drill
Grip the club with a two-inch gap between your left hand (top) and right hand (bottom). Make slow, controlled swings, focusing on feeling your right hand roll over your left through the impact zone. The gap between your hands amplifies the sensation of forearm rotation, which is the mechanism that closes the clubface. This drill teaches your hands what “squaring the face” actually feels like. Hit ten to fifteen balls with the split grip, then return to your normal grip and try to replicate the same sensation.
Drill 4: The Towel Under the Armpit
Tuck a small towel or glove under your right armpit (right-handed golfer) and make swings without letting it fall. This keeps your right elbow connected to your body during the downswing, which prevents the over-the-top move that creates an out-to-in path. If the towel falls out early in the downswing, your right arm is flying away from your body—the classic casting motion that produces a slice. Practice with half and three-quarter swings until the connected feeling becomes second nature.
Drill 5: The 9-to-3 Swing
Shorten your swing so your hands only reach the 9 o’clock position on the backswing and the 3 o’clock position on the follow-through. This abbreviated swing removes the variables of a full backswing and lets you focus entirely on path and face control through impact. Hit fifty balls with a 7 or 8 iron at this reduced swing length, prioritizing straight or slightly right-to-left ball flight. The shortened motion makes it much easier to feel the correct path and face relationship. Gradually extend the swing length as the straight ball flight becomes consistent.
Equipment Adjustments That Help
While fixing the swing is the permanent solution, equipment can provide an assist. Modern adjustable drivers allow you to close the face at address by one to two degrees, which partially offsets an open face at impact. Moving weight toward the heel side of the clubhead promotes a draw bias. Stiffer shafts can sometimes reduce a slice if your current shaft is too flexible for your swing speed, causing the face to lag open at impact. However, equipment changes are a band-aid—they reduce the severity of a slice but do not address the root cause. Use them as a bridge while you work on the mechanical fixes. For more on how shafts affect ball flight, our graphite vs steel shafts guide explains the science of shaft flex, weight, and feel.
Practice Plan: Two Weeks to a Straighter Ball Flight
Week 1: Focus on grip and path. Strengthen your grip as described above and spend each range session doing the Headcover Gate drill and Closed Stance drill. Hit at least 50 balls per session with these drills before hitting any free shots. End each session with 20 free shots, noting the ball flight without trying to fix anything—just observe.
Week 2: Add rotation and integration. Begin each session with the Towel Under the Armpit drill (20 balls) and the 9-to-3 Swing drill (30 balls), then move to full swings with the strengthened grip. Focus on completing your body rotation through impact—belt buckle to the target at finish. End with 30 free shots on the course or range, tracking how many travel straight or with a slight draw versus how many slice.
Most golfers will see a significant reduction in slice severity within this two-week window. Complete elimination may take four to six weeks of consistent practice as the new movement patterns become ingrained. Be patient—you are reprogramming muscle memory that may have been reinforced over thousands of swings.
When to Get a Lesson
If you have worked through these drills for several weeks without improvement, a lesson with a PGA professional is the most efficient next step. A qualified instructor can use launch monitor data and video analysis to identify the specific fault in your swing and provide personalized corrections that generic advice cannot. Even one lesson focused specifically on your slice can accelerate your progress dramatically. Think of it as an investment that saves you from months of inefficient self-correction. Combining mechanical fixes with better course management strategy can help you score lower even while your slice fix is still in progress.
Key Takeaways
The slice is caused by a clubface that is open to the swing path at impact. The three main root causes are a weak grip, an out-to-in swing path, and insufficient body rotation through the ball. Fix the grip first—it is the simplest change with the biggest impact. Use the Headcover Gate and Closed Stance drills to retrain your path. Commit to full body rotation and hold a complete finish position. Equipment adjustments can reduce slice severity while you work on mechanics, but they do not replace swing changes. Two weeks of focused practice is enough to see meaningful improvement. Be patient, trust the process, and consider a professional lesson if progress stalls. A straighter ball flight is within reach—and the distance you gain from eliminating sidespin will change how you approach every hole.
