Shallowing
Also known as: dropping into the slot, laying the shaft flat
Shallowing is when the club shaft flattens (becomes more horizontal) in the early downswing. This allows it to approach the ball from inside the target line for a powerful, in-to-out delivery.
It describes the shaft moving from a steep, vertical position at the top to a flatter, more horizontal one early in the downswing. It is one of the most discussed swing traits in modern golf instruction. This is because it directly correlates with an inside-out delivery path and efficient power transfer. Done correctly, the club then approaches from inside the target line — the position a draw is hit from, and where maximum compression lives.
The crucial insight is that this is not something to consciously do to the club. In a well-sequenced swing it is a consequence of correct lower-body initiation and a passive upper body through transition. When the hips fire first and the trail elbow drops in close, gravity and centrifugal force flatten the shaft on their own. Players who manoeuvre the club into position with hands and arms create uneven results and lose the very sequencing the position was supposed to indicate.
Not all golfers shallow the same amount. Steeper deliveries can be compensated for elsewhere, and plenty of successful tour players operate on a slightly steeper plane. The goal is not the flattest possible club but a delivery angle that allows consistent, square contact. It becomes a priority mainly for players who are steeply over the top, where even a moderate change would transform path and strike.
Keep the trail elbow close to your hip as the downswing starts. If it drops rather than pushing out, the club flattens on its own with no arm manipulation at all.
Work on feeling the club fall at transition: pause at the top, let gravity pull it down before the hips begin rotating. That passive-upper, active-lower combination is the mechanism behind the position in elite players.
Example
The shaft flattens from vertical to nearly horizontal, then the club approaches from inside — the natural product of a good transition.
How it shows up on video
From down the line, watch the shaft move from a steep angle at the top to a flatter one as the hands drop toward hip height. The club will appear to "fall under" or "drop behind" the original backswing plane. From face on, the trail elbow should drop close to the hip early rather than pushing outward. This means the clearest indicator of the lower-body-led transition underneath it.
Common mistakes
- Pushing the club flat with the trail hand, which often overshoots into a wildly inside path or a stuck feeling through impact.
- Confusing this with laying the club flat at the top, which is a different thing entirely. The change happens during transition, not by starting there.
- Flattening the shaft without matching the clubface, which produces a large push-slice. Face control has to be maintained as it flattens.
- Assuming everyone needs more of it — a player already too far inside will produce snap hooks by going further. Shallowing is a fix for steep, over-the-top players, not a universal goal.
In SwingVantage Motion Lab
SwingVantage analyses shaft-angle progression through the early downswing from down-the-line video. Because accurate measurement depends on camera position, these observations carry a confidence level reflecting video quality and angle.
Related terms
- Over the TopOver the top means the downswing starts by throwing the club outside the backswing plane. This produces an out-to-in path that causes pulls, pull-slices, and loss of distance.
- TransitionThe transition is the moment the swing changes direction from backswing to downswing. How the body initiates this moment determines sequencing, lag, and the resulting club path.
- LagLag is the acute angle between the lead arm and the shaft in the downswing. This means the loaded position that releases into club speed at impact when timed correctly.
- In-to-OutIn-to-out describes a clubhead travelling rightward across the target line as it meets the ball, for a right-hander. It is the delivery direction underneath draws, hooks and pushes.
- Kinematic SequenceThe kinematic sequence is the order in which body segments accelerate and decelerate during the downswing: pelvis → torso → lead arm → clubhead. Each segment slingshots the next for maximum speed.
Related guides & benchmarks
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