One of the most persistent faults in amateur golf is casting — the premature release of the club during the downswing. Traditionally, players and instructors have tried to solve this problem in the downswing itself. But what if the real culprit lies much earlier in the motion? According to top biomechanics experts and world-class coaches, the foundation of this flaw is most often rooted in the backswing. And more specifically, in the trail arm.
The Casting Problem: Not What It Seems
Casting occurs when the wrists unhinge too early in the downswing, causing a loss of lag and a steep, weak impact position. Many golfers try to "hold their angles" longer, but this is often a band-aid solution. The true problem begins when the trail arm drops or collapses behind the body during the backswing. This seemingly minor breakdown in structure creates a chain reaction that leads to early release.
Why the Trail Arm Is So Important
When the trail arm lowers behind the torso instead of elevating, the body loses its spatial structure. This narrowing causes the wrists to unhinge prematurely, robbing the golfer of compression, distance, and consistency. It also throws off the entire kinetic chain, from torso rotation to wrist dynamics.
Common Mistakes That Lead to Casting
Butch Harmon’s Head Circle Test
Butch Harmon often uses a simple but powerful visual cue. Imagine a circle around your head during the backswing. If your hands move inside that circle, especially your trail hand, it’s a sign your trail arm is retracting too much. This over-retraction sets you up to cast.
How It Should Look: The Professional Model
The Drill That Fixes It All: Wide Arm Backswing Drill
This simple drill directly addresses the trail arm problem and encourages lag-friendly wrist mechanics.
How to Do It:
Why It Works:
Immediate Benefits You’ll Notice
Golfers who perform this drill correctly often report a noticeable improvement in ball striking after just a few sessions. By fixing the trail arm path, they eliminate the need to force lag later in the swing. Instead, the lag happens naturally because the wrists are never set up to fail.
Final Thoughts
The next time you notice casting in your swing, don’t just focus on the release. Take a step back. Look at what your trail arm is doing in the takeaway and backswing. Chances are, that’s where the problem began.
A structured, elevated trail arm not only fixes casting — it sets up a more powerful, efficient, and consistent golf swing.