Trail Arm Width — Golf Drill

Trail arm width refers to the distance maintained between the trail elbow and the golfer’s torso throughout the backswing and transition. This fundamental mechanical concept is essential for golfers of all skill levels—from high handicappers fighting a 'collapsed' swing to competitive players seeking more leverage—because it directly regulates the swing arc's radius. By mastering this width, you solve the common problem of an over-folded trail arm, which is the primary culprit behind steep, inco

How can I tell if my trail arm is collapsing without a camera?

Check the tension in your lead arm and the position of the clubhead. If the clubhead feels like it's touching or very close to your trail shoulder at the top, your trail arm has likely folded past the ideal 90-degree mark.

Does trail arm width help fix a slice?

Yes. A wider trail arm makes it much easier to 'shallow' the club in the transition. When the arm collapses (narrowness), the club often moves 'over the top,' which is the primary cause of a slice.

How long does it take to feel comfortable with a wider trail arm?

Because it changes your sense of 'reach,' it usually takes 2-3 focused range sessions using the 'Natural Elbow Float' feel before it stops feeling 'disconnected' and starts feeling powerful.

How each of them teaches it

Coaches who demonstrate the trail arm width drill, each linked at the second they start.

1. Athletic Motion Golf: The Trail Arm Width Drill That Stops Casting and Adds Distance! (from 0:22). Hold the club with hands shoulder-width apart, turn to the top of the backswing, and slide the trail hand back down to feel a wide trail arm structure with a full turn.
2. Athletic Motion Golf: The Trail Arm Width Drill That Stops Casting and Adds Distance! (from 0:21). Hold the club with hands shoulder-width apart, turn to the top of the backswing, and slide the trail hand down to feel trail arm width and a full shoulder turn.

Expert Tips

• ChrisRyanGolf: Maintain a 90-degree angle in the trail elbow at the top of the backswing to maximize the swing radius. Folding the arm more than 90 degrees causes the club to collapse toward the shoulder, leading to a narrow arc and a loss of leverage.
• Warren Bennett Golf Academy: Avoid the 'tucked elbow' myth that forces the trail arm against the ribcage. Allowing the trail elbow to move naturally away from the body during the backswing preserves the space needed for a shallow downswing.