Golf Tutorials

How to Stop Hitting Fat Golf Shots with Irons

By Spencer Lanoue
July 24, 2025

Nothing sours a great looking approach shot faster than the sickening thump of the clubhead digging into the turf a full inch behind the ball. That fat shot - the chunk, the duff, the shot that makes you stare at the sky in disbelief as your ball limps a fraction of its intended distance - is one of the most maddening faults in golf. The good news is that it’s almost always caused by a few common, and correctable, issues. In this guide, we'll walk through exactly why fat shots happen and give you practical, actionable drills to start making clean, ball-first contact with your irons every single time.

What Really Causes a Fat Golf shot?

Before fixing the problem, it helps to understand it. At its core, a fat shot happens for one simple reason: the lowest point of your swing arc occurs before you hit the golf ball. Think of your swing as a giant hula hoop. For a pure iron shot, you want the very bottom of that hoop to be slightly in front of the ball, so the club makes contact with the ball first, then takes a shallow divot out of the turf just ahead of it. When you hit it fat, the bottom of that hoop has shifted behind the ball.

This single mistake can stem from a few different on-course breakdowns:

  • Hanging Back: The most common culprit. Golfers leave their weight on their back foot during the downswing, causing the entire swing to bottom out too early.
  • Casting The Club: This is an early release of the wrists from the top of the swing. It feels powerful, like you're throwing the clubhead at the ball, but it sends all your energy into the ground behind the ball.
  • Swaying, Not Rotating: Sliding your hips and body away from the target in the backswing (a sway) instead of turning makes it nearly impossible to get your weight and your low point back to the right spot on the downswing.
  • Poor Setup: Sometimes, the problem is baked in before you even start the swing. Having the ball too far forward in your stance or poor posture can sabotage your swing's low point from the start.

Understanding these causes is the first step. Now let's work on fixing them.

The Fix Starts Before You Swing: Perfecting Your Iron Setup

So much of what happens in the swing is a reaction to how you stand to the ball. If your setup is faulty, you'll spend the entire 1.5 seconds of your swing trying to make compensations. Let’s build a foundation that promotes a clean, downward strike.

1. Ball Position

For a middle iron (think 7-iron, 8-iron, 9-iron), the simplest and most effective ball position is right in the center of your stance. Right under the buttons of your shirt or the logo on your sweater. Many amateurs who hit it fat play the ball too far forward, believing they need to help "lift" it. This just moves the low point further back and encourages a fat shot. For your shorter irons (pitching wedge, 9-iron), keep it dead center. For slightly longer irons (7-iron, 6-iron), you can move it about a half-ball width forward of center, but not much more.

2. Weight Distribution

At address, your weight should be balanced, but if you have a tendency to hit it fat, it’s beneficial to feel just a little more pressure in your lead foot. Think of a 55% / 45% split, with the slightly greater percentage on your left side (for a right-handed golfer). This presets a feeling of being on top of the ball and subtly encourages your low point to move forward. Avoid leaning back or letting your weight settle onto your heels, stay athletic and centered over the balls of your feet.

3. Posture and Arm Position

Get into an athletic posture by tilting from your hips, not by slouching your shoulders. Keep your spine relatively straight and stick your backside out a bit. Your arms should hang down naturally and comfortably from your shoulders. A great checkpoint is to let your lead arm hang straight down, the butt end of your grip should be about a hand's width, or a little more, away from your thigh. If your arms are jammed up against your body or reaching too far out, it restricts your ability to rotate properly.

Sync Up Your Swing: Weight Shift and Rotation

The single biggest reason amateurs hit fat iron shots is they fail to move their weight to their front side during the downswing. They keep their center of gravity behind the ball and essentially fall backward as they hit. The only possible result is a low point that's too early.

The solution is to learn the feeling of rotating your body and shifting your weight through the shot, not just at it.

Drill: The Step-Through Drill

This is one of the best drills ever for feeling a proper weight transfer. It's impossible to do it while hanging back.

  1. Set up to a golf ball as you normally would.
  2. Take your normal backswing.
  3. As you begin your downswing, I want you to feel your weight move forward and then, just after you make contact with the ball, let your back foot (right foot for a righty) release and step forward, walking towards the target.
  4. You should finish in a totally balanced position with both feet together past the spot where you hit, fully facing your target.

You can do this at half speed to get the sequence right. Hitting a shot correctly with this drill forces you to get your pressure onto your lead foot. The goal is a swing that feels like a fluid, athletic throw, not a stationary hit. When you get back to a regular swing, try to replicate that feeling of moving through the ball to a full, balanced finish with your belt buckle pointing at the target.

Stop Casting, Start Compressing

"Casting" is the technical term for unhinging your wrists way too early from the top of the downswing. It feels like you’re trying to generate speed, but you are actually bleeding power and throwing the clubhead into the ground behind the ball.

The feeling of a great iron shot is one of "compression," where your hands lead the clubhead into the ball. This delofts the club slightly, squeezes the ball against the face, and guarantees the low point of the swing will be in front of the ball. Here are two fantastic drills to encourage this.

Drill #1: The Towel Drill

This is a classic that provides instant feedback.

  1. Take a small hand towel, folded up, or a spare headcover.
  2. Place it on the ground about 6-8 inches directly behind your golf ball.
  3. Your job is simple: hit the ball without hitting the towel.

If you're casting or hanging back, you will hit the towel first. To miss the towel, you are forced to create a slightly steeper angle of attack into the ball and shift your entire swing arc forward, creating that "ball-then-turf" contact you’re looking for.

Drill #2: The Line Drill

This is perhaps the purest drill for training your low point control.

  1. On the driving range, draw a straight line on the turf with an alignment stick or the heel of your club.
  2. First, take some practice swings without a ball. Set up to the line and your only goal is to make the divot start on the line or just ahead of it. Your entire focus should be on the location of your divot.
  3. Once you can consistently make a "forward divot," place a ball directly on the line.
  4. Repeat the same process. Hit the ball, focusing completely on taking that divot just in front of the line.

This drill removes the obsession with hitting the ball and shifts it to the real goal: controlling where your swing bottoms out. If your divot starts behind the line, your weight is back. If the divot starts ahead of the line, you're doing it right.

Final Thoughts

Stopping those frustrating fat iron shots boils down to controlling the low point of your swing. By focusing on a solid setup, a proper forward weight shift, and a descending strike, you can transform that dreaded "thump" into the pure, compressed "thwack" of a perfectly struck iron.

Sometimes, the hardest part of improving is not having honest, instant feedback on the course or range. I've found that tech like Caddie AI can fill that gap. Rather than guessing why you hit that last shot fat, you can describe what happened or even analyze your lie and get immediate, personalized coaching advice. It helps you focus on the right drill for your specific issue, taking the guesswork out of practice so you can spend more time enjoying the game.

Spencer has been playing golf since he was a kid and has spent a lifetime chasing improvement. With over a decade of experience building successful tech products, he combined his love for golf and startups to create Caddie AI - the world's best AI golf app. Giving everyone an expert level coach in your pocket, available 24/7. His mission is simple: make world-class golf advice accessible to everyone, anytime.

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