Trail Arm
The trail arm in golf is the arm farther from the target: the right arm for a right-handed golfer and the left arm for a left-handed golfer. It works opposite the lead arm and helps generate speed and control the clubface through impact.
What is a trail arm in golf?
The trail arm is one half of a pair of terms golfers use to talk about the arms without getting tangled up in left and right. The other half is the lead arm, the arm closer to the target. Because handedness flips everything, coaches and broadcasters describe the arms by their position in the swing rather than by side. For a right-handed player, the trail arm is the right arm. For a left-handed player, it is the left arm.
The label describes where the arm sits during the motion. As the club travels back and through, this arm trails behind the body and behind the lead arm, following the turn rather than pulling the club. A golfer usually meets the phrase in a lesson, a swing video, or a TV broadcast, often next to advice about keeping the trail arm “soft” or letting it fold at the top of the backswing. Knowing which arm the term points to makes that advice easy to follow, whichever way a player swings.
Trail arm vs. lead arm
Most confusion around the trail arm comes from mixing it up with the lead arm. The two sit on opposite sides of the body and do different jobs. The lead arm, closer to the target, sets the radius of the swing and stays relatively long and stable through the motion. The trail arm folds and supports, then delivers speed. One steers, the other powers, and a repeating swing needs both working together.
| Feature | Lead arm | Trail arm |
|---|---|---|
| Position | Closer to the target | Farther from the target |
| Right-handed golfer | Left arm | Right arm |
| Left-handed golfer | Right arm | Left arm |
| Main job | Sets the swing radius and keeps the arc wide | Folds to store power, then extends to deliver speed |
| Top of the backswing | Stays relatively straight | Folds, with the wrist cupped |
What the trail arm does in the swing
Across a full swing, the trail arm handles three broad jobs. Early on, it helps set width, the distance between the hands and the chest that gives the swing its arc. At the top it folds and the wrist cups, loading the arm like a spring. Coming down, it stays folded for as long as the body’s turn allows, then straightens through the ball to release that stored speed. Some instructors call it the “speed arm” for this reason.
The trail arm also has a hand in squaring the clubface. As the forearm rotates through impact, the palm of the trail hand turns from facing the sky at the top toward the target at the strike, which helps return the face to square. The trail wrist tends to stay extended, or cupped, through impact. Analysis by the wrist-sensor company HackMotion, drawn from more than 1,000,000 recorded swings, found that professional golfers average roughly 10 to 20 degrees more trail-wrist extension at impact than at address. None of this needs conscious effort in a sound swing, since the arm mostly responds to the body’s rotation.
Common misconceptions about the trail arm
A few ideas about the trail arm trip up newer golfers.
The first is that the lead arm does all the meaningful work while the trail arm goes along for the ride. Both arms matter, and plenty of powerful swings are driven largely by the trail side. Ben Hogan built much of his teaching around a sequence of hips, shoulders, arms, and hands firing in order, with the trail arm delivering speed late in that chain.
Another is that the trail arm should stay straight and firm. At address and through the backswing, most good players keep it slightly bent and relaxed, or “soft.” A rigid trail arm tends to push the shoulders open at setup and steepen the swing.
A third mixes up the trail arm with the dominant hand. For a right-handed golfer, the trail arm is the right arm, which is usually the dominant one, but the terms point to swing position, not strength. Someone who is naturally left-handed but plays golf right-handed still has the right arm as the trail arm.
Related Golf Terms
- Ten-finger grip — A baseball-style grip with all ten fingers on the club.
- Strong grip — A grip rotated away from the target, often used to fight a slice.
- Two-plane swing — A swing with a steeper shoulder plane and flatter arm plane.
- Weak grip — A grip rotated toward the target, often promoting a fade.
- Neutral grip — A balanced hand placement that promotes a square clubface.
Frequently Asked Questions
Is the trail arm the right or left arm?
For a right-handed golfer, it is the right arm; for a left-handed golfer, the left. Either way, the trail arm is whichever arm sits farther from the target at address.
What is the difference between the trail arm and the lead arm?
They sit on opposite sides. The lead arm, closer to the target, sets the swing’s radius, while the trail arm, farther away, stores power and then delivers it into the ball.
Why do golfers say “trail arm” instead of “right arm”?
Because handedness changes which side is which. Using trail and lead lets a coach give the same instruction to right-handed and left-handed players without confusion.
Should the trail arm be straight or bent?
Most good players keep the trail arm slightly bent and relaxed at address and let it fold during the backswing. A completely straight, rigid trail arm often causes swing problems.
Is the trail arm the dominant arm?
Often, though not by definition. For a right-handed golfer, the trail arm is the right arm, which is usually dominant. The term still refers to position in the swing, not which arm is stronger.
Sources
- HackMotion. “Trail Wrist in Golf: The Secret to Perfect Ball Striking.” Accessed July 2026.
https://hackmotion.com/trail-wrist-in-golf/ - GOLF.com. “Breaking down the lead arm vs. the trail arm in the golf swing.” Accessed July 2026.
https://golf.com/instruction/lead-arm-vs-trail-arm-golf-swing/ - Golf Digest. “Pros nail this trail-arm position. How to copy it for a better backswing.” Accessed July 2026.
https://www.golfdigest.com/story/mark-blackburn-steal-from-pros-keep-trail-arm-soft - Caddie AI. “What Does the Trail Arm Do in the Golf Swing?” Accessed July 2026.
https://www.caddiehq.com/resources/what-does-the-trail-arm-do-in-the-golf-swing - The Left Rough. “Unlock Your Ballstriking: The Right Arm in the Golf Swing.” Accessed July 2026.
https://theleftrough.com/right-arm-in-golf-swing/
