Improve Your Vertical Power with the Single Leg Jump Drill

The single leg jump drill trains one of the most important pieces of an efficient downswing: your ability to push vertically off the lead leg. In a good golf swing, the trail side often helps create lateral motion, while the lead side becomes the main source of vertical force as you move through transition and into release. If you struggle to get your lower body working, lose speed with longer clubs, or feel like your arms are doing all the work, this drill can help you organize the timing between your body, your arms, and the ground.

What makes this drill so useful is that it simplifies the motion. Instead of trying to create lead-side flex dynamically at full speed, you can preset the lead leg in a loaded position and learn how to push out of it at the right time. That gives you a clearer feel for how the lead leg helps rotate the pelvis, support the release, and add power without forcing the swing.

How the Drill Works

The basic idea is simple: you set up with most of your pressure on your lead leg, place your trail foot back for support, and create a small squat or loaded position in the lead knee and hip. From there, you swing while learning to extend the lead leg as your arms move through the release.

This setup highlights the role of the lead side because the trail leg is no longer in a normal driving position. With the trail foot moved back, you cannot rely on a big push from the trail side. That forces you to feel how the lead leg accepts pressure, stabilizes the body, and then pushes upward.

Think of it as a golf-specific jumping action, but not a literal jump off the ground. You are learning the sensation of pushing up through the lead side while the club is releasing. That upward push can:

Help your pelvis continue rotating through impact
Improve the sequencing between your lower body and arms
Create a more athletic release pattern
Add speed, especially with long irons, hybrids, fairway woods, and driver

One of the best parts of this drill is that you can experiment with timing. Not every golfer loads and pushes off the lead leg in exactly the same way. Some players do better by presetting the flex at address. Others feel more natural loading the lead side during the backswing. Others are more dynamic and feel a small drop in transition before pushing upward. This drill lets you test all three patterns.

Step-by-Step

Start with a narrow, supported stance. Take your normal setup, then move your trail foot back behind you. Ideally, the trail foot is balanced on the toe. If your balance is limited, you can keep a little more pressure on the ball of that foot for support.
Shift your attention to the lead leg. Most of your pressure should now be on the lead side. Your lead knee and hip should feel like they are supporting your body.
Preset some flex in the lead leg. Bend the lead knee and hip enough that you feel loaded, almost like the bottom of a small single-leg squat. This is the position you are going to push out of.
Stand slightly farther from the ball. Because the drill changes your balance and movement pattern, it helps to give yourself a little more room than normal. That makes it easier to extend without crowding the ball.
Make a controlled backswing. Keep the motion short to moderate at first. You are not trying to hit a full-speed shot. The goal is to feel the relationship between the lead leg and the arm swing.
Extend the lead leg through the downswing. As your arms move down and into the release, push through the lead foot and begin straightening the lead leg. Your arms and lead leg should feel as if they are extending together.
Let the body carry the release. Do not force the hands to throw the club. Instead, feel as though the push from the ground helps move your torso, which then carries the arms through.
Finish in balance. If you have done it correctly, you should feel tall on the lead side with your chest and pelvis continuing through to the finish, not stalling at impact.

Three Timing Variations to Try

Once you understand the basic version, experiment with these three patterns to find the one that best matches your swing.

Preset load, then extend. Begin with the lead leg already flexed at address, then push upward during the downswing. This is the easiest version and usually the best place to start.
Load during the backswing, then extend. Start a little taller, let the lead leg gain some flex during the backswing, then push through it coming down. This can help golfers who naturally gather pressure earlier.
Drop in transition, then push. Start taller, make your backswing, then feel a small drop into the lead leg as you change direction before pushing up. This is the most dynamic version and often feels the most athletic in a full swing, though it can be harder in the drill.

You can hit soft shots while testing these options, but do not judge the drill purely by contact or ball flight. The main goal is to discover when the lead leg push best coordinates with your release.

What You Should Feel

At first, this drill should feel different from a normal swing. That is a good sign. By changing the stance and reducing the role of the trail side, you are exaggerating the lead-side action so you can recognize it more clearly.

Here are the key sensations to look for:

Pressure building into the lead foot, especially through the middle of the foot and heel
Lead knee and hip flexion that gives you something to push against
An upward push through the lead leg during the downswing, not just a spin of the hips
Arms extending with the body, rather than independently flipping past the body
A taller lead side through impact and into the finish
Pelvis continuing to rotate as the lead leg extends

A helpful checkpoint is this: if your lead leg push is timed well, your release will feel more supported and less handsy. The club should feel as if it is being delivered by the motion of your body, not rescued at the last second by the wrists and forearms.

Another good sign is that longer clubs may start to feel easier to move. Many golfers can fake decent wedge shots with mostly arm action, but longer clubs demand better use of the ground and better body support through the strike. This drill helps you build that missing link.

Common Mistakes to Avoid

Using the trail foot too much. If the trail leg is still driving the motion, you lose the purpose of the drill. The trail foot is there for balance, not power.
Straightening the lead leg too early. If you lock it out before the downswing begins, you have nothing left to push with. You need some flex to create vertical force.
Only spinning the hips. This drill is not about turning faster from the top. It is about pushing upward through the lead side so the pelvis can rotate with support.
Throwing the arms independently. The arm extension should match the leg extension. If the arms fire early, the sequencing breaks down.
Standing too close to the ball. A little extra space helps because the drill changes how your body extends through the shot.
Trying to hit full-speed shots immediately. Start with slow rehearsal swings or small shots. Learn the motion first, then add speed.
Turning it into a literal jump. You are training vertical force, not trying to leap off the ground. Stay grounded and balanced.
Using it with finesse wedges. This is more useful for fuller swings and longer clubs than for soft distance-control shots.

How This Fits Your Swing

The single leg jump drill is not just a balance exercise. It teaches a bigger pattern that shows up in powerful, well-sequenced golf swings: the body swings the arms. When your lead leg accepts pressure and then pushes upward at the right time, it helps your pelvis keep moving. When the pelvis keeps moving, your torso can keep unwinding. When the torso keeps unwinding, the arms have a much better chance to release naturally instead of taking over.

That is why this drill fits so well into the transition and release phases of the swing. In transition, you are organizing pressure and deciding how you will use the ground. In release, you are turning that pressure into speed and structure through the ball. The lead leg is a major bridge between those two phases.

If you tend to hang back on your trail side, this drill can teach you how to get more organized over the lead leg. If you slide but never really post up, it can help you feel the difference between shifting and pushing. If you spin your hips without much force into the ground, it can give you a more athletic and effective source of rotation.

It is also useful if your swing tends to be too arm-dominant. Many golfers try to create speed by throwing the club with the hands, especially from the top. That usually leads to inconsistent contact and a weak release pattern. The single leg jump drill gives you a different strategy: load the lead side, push vertically, and let that motion support the release.

As you improve, you do not need to keep the exaggerated drill stance in your normal swing. The goal is to transfer the sensation back into a standard setup. In a full swing, the motion will be subtler, more dynamic, and blended with the rest of your pressure shift. But the core idea remains the same: the lead side needs to be able to load, push, and help the club move through.

For many players, this becomes especially important as the clubs get longer. Long irons and fairway woods expose weak lower-body action very quickly. If you cannot organize pressure into the lead side and push through it, those clubs tend to feel heavy, difficult to square, and hard to compress. This drill helps you build the vertical support that makes those swings more stable and more powerful.

Use the drill slowly at first, test the three timing variations, and pay close attention to which one gives you the clearest sense of the lead leg working with the release. Once you find that pattern, you can begin blending it into normal swings and using it as a reliable way to improve your vertical power.