You Can Hear The Bad Stroke Before You See It.

The Gatekeeper clips onto the lower third of your putter shaft. A weighted ball hangs underneath and swings with your stroke — like a pendulum. Stroke straight and clean, the ball passes through the gate without touching it. Stroke off path, off tempo, or with face rotation, and the ball strikes the gate. You hear it. You feel it. You fix it.
  • Pendulum mechanism trains stroke path and tempo
  • Audible feedback — the gate strikes on every bad rep
  • Retractable tracking wings — fold flat for travel, deploy on the green
  • Front-gate-only mode for tempo and ball-stability work
  • Removable cuff fits any putter shaft
  • Multiple ball sizes — start large, shrink the ball as you improve

"You can hear the bad stroke before you see it. The bell on the gate is the coach."
— Michael R., Infinite Golf customer
$109.99 $49.99SAVE $60
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Why Golfers Trusted The Gatekeeper To Improve Their Start Line And Face Control

Featuring Stewart Cink using the original Gatekeeper training aid.

THE RESULT?

Watch how simple feedback helped golfers build a more consistent, repeatable stroke.

WATCH THE GATEKEEPER IN ACTION

What Makes The Gatekeeper So Effective

Six reasons audible feedback beats another swing thought.
Train a consistent start line

Instant feedback tells you immediately if your putter face is square, so you can start the ball on your intended line every time.

Improve face control without overthinking

Build a square, repeatable motion through simple feedback instead of complicated mechanics.

Develop a more reliable putting stroke

Eliminate guesswork and create consistency you can trust on the course.

Practice anywhere

Lightweight, compact design. Set it up in seconds at home, indoors, or on the green without needing extra equipment.

A proven training aid

Trusted by golfers worldwide. Thousands of players have used the Gatekeeper to sharpen their start line and build confidence.

Progressive difficulty

Start with the largest ball for a generous margin, then drop to a smaller one as your stroke tightens. The gate gets harder, the feedback gets sharper.

Build A Smoother Putting Stroke
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The Gatekeeper

How It Works

Clip the Gatekeeper to the lower third of your putter shaft. The ball hangs from the cuff, sitting just above the gate.

Address your putt. Make your stroke.

A square, on-path, tempo-controlled stroke swings the ball cleanly through the gate. Any deviation — a yanky takeaway, a face rotation, a rushed transition, a decel through impact — and the ball clips the gate. You hear the click. That's the miss.

Adjust. Repeat. Groove the stroke that doesn't make the click.

The Gatekeeper

Introducing The Original Gatekeeper Training Aid

Stroke path. Straight-back, straight-through. Or the slight arc, repeated. The pendulum exposes both.

Face rotation. A rotating face shifts the ball off the swing plane. The gate catches it.

Tempo. Rushed transitions break the pendulum. The gate catches that too.

Ball-front stability. Use the front gate alone to stop the takeaway from sliding the ball off your aim.

The Gatekeeper

Start Large. Shrink The Ball As You Improve.

The Gatekeeper ships with multiple ball sizes, and that's the training progression built into the product.

Begin with the largest ball. It gives you a generous margin through the gate, so you get clean reps early and learn what a good stroke feels like rather than fighting constant feedback.

As the strokes get cleaner, drop to a smaller ball. The margin shrinks, the gate gets less forgiving, and faults that used to slip through start showing up again. Same drill, tighter tolerance.

Get the Gatekeeper
Risk Free 30-Day Money Back Guarantee

Infinite Golf 30-Day Money Back Guarantee

We'll send the original Gatekeeper training aid straight to your door, and if it doesn't help you improve your start line and build more consistent face control, just send it back for a full refund. We make this promise because we've seen how effective simple, immediate feedback can be. When you can clearly see whether your putter face is square at impact, improvement becomes consistent instead of random. Use it at home, indoors, or on the green. Within 30 days, you'll know exactly how your putting is improving.

Final Inventory. Once The Gatekeeper Is Gone, It's Gone.

$109.99 $49.99SAVE $60
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Get the original Gatekeeper before this version is discontinued for good. Secure checkout · Fast shipping · 30-day guarantee