From the moment of address, through takeaway, forward stroke, impact, and followthrough … OnePuttPro precisely measures motion, lines, path, and angles. In other words, it is measuring and recording your entire putting stroke.
The OnePuttPro Smart Putting Aid does something that we humans are not quite capable of doing: It measures motion in perfect straight lines and angles. We don’t quite move in perfect lines and angles, which makes moving objects a bit tricky. OnePuttPro provides precise feedback on excessive or insufficient movement that may influence the ball’s roll, utilizing its ability to measure straight lines and angles with accuracy.

Without OnePuttPro, when you miss a putt, the best you can do is try to determine what you did wrong and then try to fix it. And you may be right, or you may be wrong. But when you use OnePuttPro, it’s going to measure everything you did, analyze it and give you a score, eliminating the guess work.
For example, during a missed putt, you may have thought that it was your acceleration that was off, when, in fact, OnePuttPro determined it was your lie angle that was off. This allows you to develop a consistent putt stroke with practice. Having something that measures your motion and angles as precisely as OnePuttPro does, can, at first, be unsettling. However, as you keep working with it and your putts start to improve, you’ll appreciate that initial learning curve.
How OnePuttPro’s Six Metrics Reveal the Little Things that Shape Your Putting Stroke
When you review your results, OnePuttPro doesn’t just place you in a green, yellow, or red zone…it also assigns you a specific number. That number tells a deeper story about what the putter is doing throughout your motion, not just at setup or impact. So, if the result surprises you, don’t worry, that’s often where the learning begins.
As you move the putter back from address, even small changes in posture, hand position, or putter movement can influence how you return to the ball. OnePuttPro is designed to recognize those subtle shifts. It’s not judging a single moment … it’s helping you understand the entire motion that leads to your result.
OnePuttPro senses everything that happens from the point of address through the point of impact. It senses and records the total variation (delta) from the initial address position through the final moment of impact.
Let’s talk lie angle for a moment, which is impacted by shaft angle.

Let’s say you start with your putter shaft at a 70‑degree lie angle at address. During the takeaway, your hands raise slightly, increasing the lie angle to 75 degrees. On the forward stroke, they drop back 4 degrees, arriving at 71 degrees at impact. The device will show a reading of +1, because the final lie angle at impact is 1 degree higher than it was at address.
If you had not corrected the lie angle on the forward stroke and reached impact at 75 degrees, the reading would have been +5, resulting in poor impact as well as misdirection of your ball. OnePuttPro captures all movement during the stroke but reports the final variation at the point of impact for that putt.
Let’s look at another variation. As before, you start with a 70‑degree lie angle at address, but this time during the takeaway, your hands shift slightly downward, reducing the lie angle of the putter shaft to 64 degrees. On the forward stroke, your hands shift back up 3 degrees, arriving at 67 degrees at impact. The device will show a reading of –3, because the final lie angle at impact is 3 degrees lower than it was at address.
If you had not corrected the lie angle on the forward stroke and reached impact at 64 degrees, the reading would have been –6, again significantly impacting the quality of your putt. OnePuttPro captures all movement during the stroke but reports the final variation at the point of impact for that putt.
Here’s an Example for Face Angle at Impact

Let’s say you’re working on your face angle at impact — one of the most sensitive elements in putting. In fact, roughly 85–90% of a putt’s start direction comes from the face at impact.
We’re often talking about fractions of a degree… changes so small they’re impossible to see with the naked eye.
You may or may not notice that, at impact, the putter face was ever-so-slightly open, but OnePuttPro “sees” exactly where the putter face is pointing as it moves into impact. As a result, you get a reading that reflects subtle face-angle variations that aren’t always obvious to the naked eye.
Even though you may have felt the face was square, OnePuttPro “knows” when it’s just slightly open.
Perhaps there was a subtle change in your setup or motion — a small shift in your hips, a slight variation in your grip, or even a tiny adjustment in how your hands moved through the stroke.
Some of these changes influence the path directly, while others affect how the putter face rotates into impact. When you look at a metric, remember that your entire motion is being sensed from address to impact. You may have even made the putt — but that doesn’t always mean the face was truly square. OnePuttPro helps reveal the “micro truth” of what actually happened.
Loft Angle is Measured a Little Differently
Loft works a little differently than lie angle. Instead of comparing it to your setup, OnePuttPro shows the loft you actually delivered at impact … in other words, how much the face was tilted when it met the ball. Most putters are built with about 2–4 degrees of loft and delivering something in that same range usually helps the ball launch cleanly and start rolling sooner.
If your hands move too far forward through the stroke, you can reduce that loft and drive the ball into the turf, which often leads to extra skid. If your hands fall behind, you add loft and the ball may pop up slightly before settling into a roll. OnePuttPro highlights these small changes, helping you see how subtle hand position shifts influence the roll you get at impact, while lie angle shows how the putter moved during the stroke.
And That’s HowOnePuttPro Takes the Guesswork Out of Putting

It’s just like real life, if you don’t start your putt correctly, follow through correctly and complete it correctly, you won’t get 6 green metrics across the board. That’s what OnePuttPro is showing you.
The best way to get a fully green metrics score is to practice each metric individually until you hit green consistently. If you keep working on a metric, before you know it, you’ll have corrected any detrimental tendencies that you have.
OnePuttPro is a precision tool, because putting requires precision. With putting being more than 30% of the game, you will soon begin to appreciate what you’re getting from putting practice with OnePuttPro.
Additional Reading
Science & Motion Sports – The Fundamentals of Putting (Face & Path)



