Onform’s 3D features show golf coaches exactly how a swing moves through space, not just what it looks like on video. Instead of guessing at timing or sequencing from a single camera angle, coaches can see the precise mechanics behind a swing fault and show the athlete exactly what changed.

3D features are currently available for golf. This guide covers what 3D swing data actually measures, how top golf coaches are using it right now, and how to get started with it yourself.

How Onform’s 3D Technology Works

Onform uses markerless 3D motion capture, meaning coaches get 3D swing data straight from video, no wearable sensors or dedicated capture studio needed.

  • 3D Press Release — The original announcement introducing 3D swing analysis, including how it works, what it measures, and how Onform tested its accuracy against lab-grade motion capture systems.
  • 3D Data Now Available For Golf — The full rundown of what Onform’s 3D tools measure (12 core swing metrics, including torso and pelvis rotation, sway, lift, and tempo), how the data was validated against lab-grade systems, and how to start using it in a normal coaching session.
  • Onform’s 3D Data Model Card — Onform was the first company in golf technology to publish a full model card, covering how the 3D motion capture model was trained and tested against lab-grade systems like OptiTrack and Qualisys, including the accuracy, limitations, and intended use of Kinematic Sequence and Reference Ranges specifically.

How Coaches Use 3D in Practice

  • How Markerless 3D Technology Is Used in Golf Coaching — Ken Racca explains how mobile 3D capture replaced $35,000 lab equipment, including a real case study diagnosing why a 74-year-old student’s driver speed lagged behind his irons, something standard video couldn’t reveal.
  • Using 3D Data to Stabilize Your Gaze and Your Golf Swing — PGA Tour Champions coach Michael Manavian breaks down the 1:1 forward bend to side bend ratio that keeps a golfer’s head steady through the swing, including a case study with Tour player Tom Pernice Jr.
  • Six Red Flags to Look For in a Golf Swing — Coach Hugh Marr breaks down six specific checkpoints he screens for using Onform’s skeleton and sway data, from pelvis re-centering to a “flat shoulder smile,” each tied to a visible cause, not just a symptom.
  • Fixing Your Slice with 3D Video Analysis — A breakdown of the two most common causes behind a slice, early hip extension and limited backswing rotation, with the exact 3D thresholds (pelvis thrust, torso rotation degrees, hip-to-torso separation) that reveal each one.

Understanding Your 3D Data

Before you can use 3D data to coach, it helps to know what you’re looking at. Every metric has a normal range, and knowing where a student falls in that range is the first step to knowing what to work on.

  • How to Use Reference Ranges in Your Coaching — How Onform’s color-coded ranges compare a student’s swing to the top 10 male and female golfers in the world, so coaches know what “good, bad, or ok” actually looks like

Swing Timing and Sequencing

Kinematic sequence measures the order and timing of energy transfer through the body during a swing, from the ground up through the pelvis, torso, arm, and club. It’s one of the most important diagnostic tools 3D data provides.

  • A Beginner’s Guide to Kinematic Sequence — What kinematic sequence actually is (the order pelvis, torso, arm, and club accelerate through a swing), why “ugly” swings often outperform textbook ones, and how to spot the top-down sequencing fault behind most amateur slices.
  • How to Fix an Out-of-Sequence Golf Swing — Biomechanics expert Drew Cooper answers real coaching questions on out-of-sequence swings, when to introduce kinematic sequence to students, and the drills that fix common breakdowns like early arm firing and late pressure shifts.

Watch: 3D Webinars

Getting Started with 3D Golf Coaching

3D features are available with Coach Pro or Individual Premium for golf. Once upgraded, you can capture a swing, review the sequencing and biomechanics data, and share it in the same session, no separate software or hardware needed.

Coaches who complete Onform’s upcoming 3D certification course get a deeper foundation in reading and applying this data with their own students. Join the waitlist.