What Actually Causes a Slice
A slice happens when the clubface is open relative to the swing path at impact. Most slicers swing on an out-to-in path with the face pointed right of that path — producing left-to-right spin.
The fix requires two changes: neutralize the path and square the face.
Step 1: The Headcover Gate Drill
Place a headcover 6 inches outside and behind the ball. If your downswing is out-to-in, you'll hit the headcover. This drill forces an inside approach.
- Start with half swings.
- Graduate to full swings only when you can miss the headcover 8 out of 10 times.
Step 2: The Glove-Under-Arm Drill
Tuck a glove under your lead armpit. Make swings keeping the glove in place through impact. This promotes connection between your arms and body, preventing the "casting" motion that throws the club outside.
Step 3: Strengthen Your Grip
Rotate both hands clockwise on the grip (for right-handed golfers) until you see 2.5 to 3 knuckles on your lead hand at address. A stronger grip makes it easier to square — or even close — the face through impact.
The 2-Week Protocol
- Week 1: 50 balls/day with the Gate Drill, half speed. Focus on path only.
- Week 2: Full speed with strengthened grip. Monitor ball flight — you should see a straight ball or gentle draw.
When to Seek Help
If your slice persists after two weeks, a launch monitor lesson can pinpoint whether the issue is path, face, or a combination. Strokes Gained data shows that eliminating a slice can save 3–5 strokes per round for a 20-handicapper.