A golfer arrives for a lesson saying the same thing most slicers say: “I know what I’m doing wrong, but I can’t stop it on the course.” The issue is rarely just one thing. In this case study fix slice with Trackman, the real value was not guessing less. It was measuring what actually caused the ball to start left, hang right and finish in trouble.
This is where serious improvement begins. A slice is not a personality trait and it is not something you simply “live with” once your handicap reaches a certain level. If you can measure club path, face angle, strike location and launch conditions, you can build a clear plan. For golfers in Singapore balancing work, travel and limited practice time, that clarity matters.
The player profile
The player in this case was a committed club golfer in his 40s, playing once a week and practising when work allowed. His biggest frustration was the driver, but the shape was also appearing with fairway woods and longer irons. Under pressure, the miss became larger. On holes that demanded commitment, he aimed farther left, swung harder and saw the ball curve even more to the right.
His ball flight pattern looked familiar. Starts slightly left of target, climbs, spins and falls weakly right. Carry distance was inconsistent and total distance suffered because the spin profile was too high. On the course, that meant fewer fairways, more recovery shots and very little trust standing on the tee.
He had already tried the usual fixes from friends and videos. Stronger grip, close the stance, release the hands, swing out to the right. Some of those changes occasionally helped, but none held up because the root cause had not been properly identified.
What Trackman showed in this case study fix slice with Trackman
Trackman gave us the first honest picture. Instead of working from feel, we worked from delivery.
The player’s club path was moving significantly left through impact, averaging around -5 to -7 degrees with the driver. His face angle was open to target, but more importantly open relative to path. That relationship is what creates the slice spin. His attack angle was slightly down, which added spin and reduced efficiency, and strike location was regularly high on the toe or low on the heel depending on how hard he tried to “save” the shot.
That matters because not every slice is the same. Two golfers can both curve it right for very different reasons. One may have a path issue, another a face control issue, and another a strike issue that exaggerates spin. If you coach all three players the same way, progress becomes slow and unreliable.
In this session, the data told a clear story. The player was standing too open at address, the backswing was getting steep early, and in transition he pulled the handle down aggressively. That combination sent the club out in front of him and left through impact. His attempt to “square the face” happened too late, so he delivered an open face with a cutting path.
Why the usual anti-slice tips had not worked
This is where golfers often lose months. They hear one tip that improves one part of the pattern, but it does not solve the whole chain.
For this player, strengthening the grip helped a little with face angle, but not enough to offset a leftward path. Aiming right only changed where the ball finished, not why it curved. Trying to release the club harder added timing pressure and made contact less stable. The slice became less predictable, not more controlled.
There is always a trade-off in coaching. You can chase a quick cosmetic change, or you can build a movement pattern that stands up on the course. The first option feels exciting for ten balls. The second is what lowers scores.
The intervention plan
We did not throw six swing thoughts at him. We organised the fix around three priorities.
First, we neutralised the set-up. His shoulders and feet were aiming left, which encouraged the across-the-ball action. Once the body lines improved, the player had a better chance of delivering the club from a more neutral direction.
Second, we changed the backswing shape. The goal was not to make it pretty. The goal was to stop the club getting steep and disconnected early. With a better arm structure and more depth in the backswing, the club had room to shallow instead of being thrown across the line in transition.
Third, we used Trackman to train face-to-path, not just ball flight. That is a crucial distinction. A golfer can hit one straight ball with poor delivery if the timing matches up. We wanted a pattern he could repeat.
The initial training window was simple. We aimed to move club path from heavily left to nearer neutral, and reduce the gap between face and path so the curvature dropped. We also wanted a slightly more upward strike with the driver to bring spin down and improve carry.
How the session unfolded
The first gains came quickly, but only after the player stopped trying to “fix the slice” with his hands. We put an alignment station in place, adjusted ball position and gave him a very specific rehearsal feeling – deliver the club more from the inside while allowing the chest to stay organised through impact rather than pulling away.
Trackman gave instant feedback after every shot. When path improved from -6 to -2, he could see it. When face-to-path narrowed, he could see that too. That immediate loop matters because most golfers misread cause and effect. They think a shot curved because they did one thing, when the data often shows something else entirely.
Within the session, the ball flight changed from a weak slice to a softer fade and then to mostly straight shots with occasional slight draw. That does not mean the issue was permanently solved in one lesson. It does mean the player finally experienced the right pattern and understood what produced it.
His driver numbers moved in the right direction. Club path shifted closer to neutral. Face angle became less open relative to path. Spin reduced. Strike became more centred. Carry became more consistent, and the shape stopped bleeding distance to the right.
What changed on the course
This is always the real test. Range improvement is useful, but on-course transfer is the standard that matters.
Over the next few weeks, the player reported a major change in confidence from the tee. He no longer felt he had to protect against the right side with a panic aim. That changed decision-making immediately. He could pick a proper target, commit to the shot and make a more athletic swing.
His misses did not disappear. No serious coach should promise that. Under pressure, he still had the occasional cut. But the miss became playable rather than destructive. That is a massive difference for scoring. A ball finishing in the first cut is not the same problem as one starting in bounds and peeling into trees or water.
He also saw a knock-on effect with long irons and hybrids. Once the path and face relationship improved, the whole top end of the bag became more functional. The game often works like that. Fixing one delivery pattern can improve several clubs at once.
What this case study fix slice with Trackman really shows
The biggest lesson is simple. A slice is a pattern, not a mystery. If you measure the delivery, identify the match-ups and train the right feels, progress can happen faster than most golfers expect.
It also shows that the best fix depends on the player. Some slicers need face control. Some need path control. Some need better contact. Many need a blend of all three, plus a practice structure that fits real life. For busy golfers, random bucket sessions are rarely enough. Focused work with feedback is what creates change.
That is why performance coaching works best when it is structured. Data gives you the diagnosis, coaching gives you the correction, and disciplined practice gives you retention. Miss one of those pieces and improvement tends to stall.
For golfers serious about better scoring, the aim is not to hit one perfect draw on the range. The aim is to build a reliable shot pattern you can trust when the card matters. If your slice is costing you distance, confidence and too many penalty shots, measured coaching can move you forward quickly.
Start with the truth of your ball flight, not your guess about it. Once you know exactly what the club is doing, the path to better golf becomes much clearer. That is when confidence stops being a hope and starts becoming a result.