P4 Golf Swing Position: 3 Checkpoints That Actually Matter

The P4 golf swing position is the top of your backswing — the exact moment everything stops going back and starts coming down. It’s the checkpoint your swing gets built around, whether you know it or not, because every fault at impact traces back to something that went wrong here first. If you’ve heard your instructor or a TV commentator throw out “P4” and had no idea what they meant, this is the position they’re talking about.

I’ve been teaching golf in the Chicago area for seven years, and the top of the backswing is one of those spots where golfers either obsess over the wrong thing (how far past parallel the club goes) or ignore it completely (what the wrists and turn are actually doing). Neither approach helps. Let’s break down what P4 really is, the three checkpoints that actually matter, and how to fix the faults that show up there.

What Is the P4 Golf Swing Position?

P4 comes from the ten-position “P-System” that modern coaching uses to break the golf swing into checkpoints — a framework popularized through Golf Digest instruction and now used widely by TPI-trained coaches and swing analysis software. P1 is address, P7 is impact, and P4 sits right in between: the top of the backswing, the last frame before the club changes direction and the downswing begins.

It’s worth understanding P4 in context of the position that leads into it. At P1, the address setup, everything is square and still. By P4, your shoulders have turned roughly 90 degrees, your hips have turned less than that, your wrists have hinged, and your weight has shifted into your trail foot. Nothing about it resembles address — and it shouldn’t. For a deeper breakdown of the full ten-position system, HackMotion’s guide to golf swing positions is a solid technical reference.

The Three Checkpoints That Actually Matter at P4

Golfers get fixated on one number at the top of the backswing: whether the club reaches parallel. That’s the least useful thing to check. Here’s what actually predicts whether you’re set up for a good downswing.

1. Where the Club Points

Rather than obsessing over parallel, look at direction. On a down-the-line view, the shaft at P4 should point roughly parallel to your target line — not way across it (laid off) and not pointing way right of it for a right-hander (across the line). Small misses here are normal and playable. Big misses force compensations lower down that are much harder to time.

2. How Far You’ve Turned — Not How Far You’ve Swung

A full shoulder turn is around 90 degrees for most golfers with average flexibility; your hips should turn less, somewhere around 45 degrees. That gap between shoulder turn and hip turn is what coaches call the X-Factor, and it’s a real source of stored power — the same coiling effect behind centrifugal force in the golf swing. Swinging the club further back without turning further just adds arm length and loses control, which is the actual definition of overswinging.

3. Your Lead Wrist Angle

This is the one amateurs never check and better players never skip. At P4, your lead wrist should be flat or very slightly bowed — not cupped (bent backward). A cupped lead wrist at the top adds loft and opens the clubface, which sets up the exact chain of compensations that produces a weak slice. A flat or bowed wrist keeps the face in a position you can actually control coming down. This is the same wrist condition you want to arrive with at P7, impact — the top of the backswing is where you either bank that advantage or start digging a hole you’ll spend the downswing trying to climb out of.

The Most Common P4 Faults (and What They Cost You)

Overswinging

Overswinging is letting the club travel past the point your body’s rotation and wrist hinge can actually support — usually by collapsing the trail arm or over-hinging the wrists to manufacture extra length. It feels powerful. It isn’t. You lose width, you lose control of the clubface, and you usually need a big compensation on the way down just to make contact. Shorter and connected beats long and loose every time.

The giveaway on video is a wobble right at the top — the club visibly dips or the clubhead loses its line for a split second before transition starts. If you see that, you’ve found your overswing point, and it’s almost always a few inches before where you thought it was.

The Flying Elbow

This is when the trail elbow points up and away from your body at the top instead of staying roughly underneath the hands. It disconnects your arms from your body’s rotation, which almost always leads to an over-the-top move in transition — the classic slicer’s move. Keeping a towel or headcover tucked under your trail arm during practice swings is the fastest way to feel the difference.

Reverse Pivot

Your weight is supposed to load into your trail foot on the way back. A reverse pivot is the opposite: your weight drifts toward your lead foot at the top, then has nowhere to go but backward on the downswing. It’s a major source of thin and fat contact, and it’s closely related to the back-strain issues we cover in our reverse C swing guide — both come from the body compensating for weight that ended up in the wrong place.

A Cupped Lead Wrist

Covered above, but worth repeating as a fault on its own because it’s the single biggest predictor of a weak slice I see on the lesson tee. If your shots balloon high and drift right (for a right-hander) with almost no roll-out, check this first before you touch anything else in your swing.

How to Check Your Own P4 Position

You can’t feel most of this in real time — the backswing takes well under a second. You need to actually look at it, which means recording yourself.

• Film down-the-line. Set your phone on the ground behind the ball, aimed straight down your target line. This view shows you where the club points and whether you’re laid off or across the line.
• Film face-on, too. This angle shows turn, sway, and weight shift far better than down-the-line does. Use both if you can — one camera angle alone hides half the picture.
• Pause the video at the top. Most phones let you scrub frame by frame. Freeze it right where the club changes direction and check your wrist, your turn, and the club’s direction against the checkpoints above.
• Compare to a full-speed swing, not a slow one. Swinging slowly to “check your position” changes the position. Swing at normal speed and review the footage after.

If you don’t want to mess with a tripod, lean your phone against a golf bag or a bucket of range balls. It doesn’t need to be fancy — it just needs to actually catch the top of the swing.

Does P4 Change With Different Clubs?

Yes, and that’s normal. With a driver, most golfers make their fullest turn and longest backswing, because the longer shaft and lower loft reward a bigger coil. With wedges and short irons, a three-quarter or half swing is often not just acceptable but better — you trade backswing length for control, and for anything inside 100 yards, control wins.

What shouldn’t change from club to club is wrist quality. A flat or slightly bowed lead wrist at the top matters just as much on a pitching wedge as it does on a driver. Length is negotiable. Wrist condition isn’t.

Grip Pressure at the Top: The Detail Most Golfers Miss

One more thing worth checking while you’re at it: how tightly you’re holding on. A death grip at address almost always gets worse by the time you reach P4, and tight forearms restrict the very wrist hinge you’re trying to build. If your grip pressure climbs as you swing back, your wrists tend to stay stiffer and more cupped, not flatter.

Start light — think of it on a 1-to-10 scale, and aim for a 4 or 5 at address. Check in at the top of a few practice swings and see whether that number has crept up without you noticing. Our full breakdown of grip pressure points covers where that tension should and shouldn’t live in your hands.

Drills That Build a Better P4

1. Feet-together drill. Hit balls with your feet touching. It’s nearly impossible to sway or overswing this way, so it forces a rotation-based backswing built around turn instead of slide.
2. Towel-under-the-arm drill. Tuck a towel or headcover under your trail arm and make backswings without dropping it. This fixes a flying elbow almost immediately by keeping your arms connected to your body’s turn.
3. Pause-at-the-top drill. Swing to the top and hold for two full seconds before starting down. This removes momentum as a crutch and makes you feel — and often see, if you do it near a mirror — exactly what position you’re actually in.
4. Alignment stick across the shoulders. Hold a stick across your chest and turn to the top. Have someone check (or film it) whether the stick points near the ball, which confirms a full, connected shoulder turn rather than an arms-only lift.

Training aids that help with this (affiliate links): alignment sticks, wrist hinge trainers, and a simple phone tripod for recording your swing from both angles.

Frequently Asked Questions

What is the P4 golf swing position exactly?

P4 is the top of the backswing — the fourth checkpoint in the ten-position P-System used by many modern coaches, sitting right before the downswing begins. It’s the last position before the club changes direction.

Does the club have to reach parallel at the top?

No. Backswing length matters far less than what’s happening at the top — turn, wrist condition, and where the club points. Plenty of excellent ball-strikers stop short of parallel, and some go past it, without any loss of quality.

What’s the difference between P4 and P6?

P4 is the very top of the backswing. P6 comes later, during the downswing, right before impact. They can look similar in photos, but P4 is heading into transition and P6 is heading into the ball.

Why do I lose my balance at the top of my backswing?

Almost always a sway rather than a turn — sliding your whole body away from the target instead of rotating around a stable base. The feet-together drill above exposes this fault fast, because swaying with your feet together is nearly impossible to hide.

Should my back fully face the target at the top?

For most golfers with reasonable flexibility, yes — your back roughly facing the target is a good visual check for a full 90-degree shoulder turn. If limited hip or shoulder mobility keeps you from getting there comfortably, don’t force it; a shorter, connected turn beats a longer one built on strain.

Can a shorter backswing still generate power?

Yes. Plenty of accurate, powerful ball-strikers use a compact backswing. Power comes from the sequencing and speed you build coming down through a properly hinged wrist and a connected turn — not from how far back you take the club.

Putting It Together

The P4 golf swing position isn’t something you need to consciously steer the club into — it’s the natural result of a good turn, a stable base, and wrists that hinge instead of collapse. Chase those three things and the position takes care of itself.

If you take one thing from this: stop measuring your backswing by how far it goes and start checking what it’s actually doing. A shorter, connected P4 with a flat lead wrist will out-perform a long, loose one every single time. Film it, check the three checkpoints, and build your downswing from a position worth building on. For general instruction background on swing fundamentals, the PGA of America is a good outside resource to cross-check what you’re working on.