The Evolution of Video Analysis in Golf

Video analysis has become an indispensable tool in modern golf instruction, evolving from grainy VHS recordings to high-speed digital systems capable of capturing thousands of frames per second. Tour players today rely on this technology to dissect every phase of the swing with surgical precision. Patrick Cantlay, consistently ranked among the world’s best, has fully embraced this evolution. His methodical nature and attention to detail make him an ideal candidate to leverage video analysis not just for diagnosing issues, but for building a repeatable, pressure-proof swing.

The shift started in the early 2000s when coaches began using simple camcorders to play back swings frame by frame. Soon after, dedicated software like V1 and K-Vest entered the market, allowing for simultaneous screen capture, angle overlays, and comparison tools. Today, Cantlay works with high-speed Phantom cameras that film at 1,000 frames per second, capturing positions invisible to the naked eye. This technological leap lets him see exactly where power leaks occur and where timing varies between a good shot and a bad one. The integration of launch monitors like TrackMan 4 further enhances the feedback loop, providing precise club data that video alone cannot deliver.

Cantlay’s Personalized Video Setup

Patrick Cantlay’s practice sessions are a controlled laboratory of motion analysis. He uses two or three cameras strategically placed to cover down-the-line, face-on, and behind angles. His primary setup includes:

  • Phantom VEO 710 high-speed cameras – Used for capture rates up to 1,000 fps, eliminating motion blur at impact and revealing subtle clubface rotations.
  • TrackMan 4 launch monitor – Provides club data (path, face angle, attack angle, club speed) to correlate with video, giving a complete picture of the swing.
  • V1 Pro video analysis software – Allows frame-by-frame scrubbing, side-by-side comparison, and drawing tools to mark key positions. Cantlay uses the overlay feature to compare his swing against a baseline or a model reference.
  • iPad or laptop station – Placed near the hitting area so Cantlay can review clips between shots without leaving the tee box, maintaining momentum in his practice session.

Every session begins with a baseline recording of his full swing with a middle iron. He hits five to ten balls while the cameras roll, then walks to the station with his coach. They tag key frames: setup, takeaway, top of backswing, transition, impact, and follow-through. This systematic approach ensures no detail is overlooked. Cantlay also records swings from multiple angles simultaneously, a practice that helps him understand how a change in one dimension affects the others.

Key Metrics Cantlay Tracks

While many golfers focus only on ball flight or face angle, Cantlay drills into deeper metrics that reveal the root of a flaw:

  • Club face angle at the top – Determines whether the face is open, closed, or square relative to the swing plane. A deviation of more than three degrees can require compensation later.
  • Attack angle (AoA) – Helps him control trajectory and spin, especially with wedges and long irons. Cantlay aims for a consistent AoA within one degree for each club.
  • Face-to-path ratio – A key indicator of curvature control; Cantlay keeps this within two degrees to hit draws or fades on command. On the course, he can adjust his setup based on the day’s flight pattern.
  • Spine tilt and hip depth – Monitored to maintain spine angle through impact and avoid early extension. Cantlay uses 3D motion capture occasionally to validate what the 2D video shows.
  • Shaft lean at impact – Ensures compression and consistent strike location. He looks for the shaft to be slightly ahead of the ball, creating a descending blow for irons.

By cross-referencing these numbers with video, Cantlay can confirm whether a swing change is being executed properly or if a feel-based drill needs adjustment. This data-driven feedback loop has helped him maintain one of the most consistent ball-striking records on the PGA Tour. For example, during the 2021 season, his strokes gained approach the green ranked inside the top five, a testament to how well his video analysis translates to scoring.

Common Swing Flaws Identified and Corrected

Even elite players develop subtle compensations that can become entrenched. Cantlay regularly uses video to catch these flaws before they affect tournament performance. Three common issues he addresses include:

Early Extension

When a golfer stands up or thrusts the hips toward the ball before impact, it forces the club to steepen, causing thin or fat shots. Cantlay spots this by overlaying his current swing with a model swing. If his belt line rises prematurely, he performs a simple drill: with a foam roller under his trail foot, he makes half-swings focusing on maintaining hip height into impact. Video confirms whether he stays in posture. He also uses a pressure plate to measure weight distribution, ensuring his pressure moves forward without his hips rising.

Over-the-Top Move

An out-to-in swing path leads to pulls and slices. Cantlay checks his down-the-line view for the shaft plane. If the shaft points outside the ball at the top of the downswing, he feels a “pump drill” – the club must drop into the slot before turning left. He records slow-motion swings to verify that his hands drop while his hips rotate, keeping the club on plane. Cantlay often practices this drill with a towel under his right armpit to keep the arms connected.

Stall-and-Flip Release

Some players stop their lower body rotation and flip their hands to square the face, costing power and control. Cantlay uses face-on video to measure his hip turn at impact. If his hips stall, he uses a resistance band around his knees to force rotation. Re-evaluation shows whether the body is delivering the club head consistently. He also monitors his lead wrist angle – a flat or slightly bowed wrist at impact prevents the flip and ensures a square face.

Each flaw correction follows the same pattern: video evidence, targeted drill, then re-recording to confirm. This process builds confidence because the golfer sees proof of improvement, not just feels it. Cantlay often notes that seeing the change on video is more powerful than any feel he can create.

The Iterative Process: Record, Analyze, Adjust, Re-evaluate

Cantlay’s practice routine is built on a four-step cycle that can be completed in minutes. This loop keeps his swing mechanics sharp and prevents drift. He never goes more than a few days without some form of video feedback, even during tournament weeks.

  1. Record – He swings with a specific intent (e.g., “keep the clubface square at the top”). Immediately after the shot, he tags the swing in the software. Each recording includes both video and data from TrackMan. He also records a “before” swing each day to see any variance from his baseline.
  2. Analyze – With his coach, they overlay the latest swing against a reference swing from a previous peak performance. They check key positions: left arm parallel, top of backswing, shaft parallel on the downswing, and impact. If a position deviates more than two degrees, it flags an adjustment. They also look at tempo – Cantlay uses a metronome app to compare the timing of his backswing and downswing.
  3. Adjust – They choose one specific change. It could be a grip alteration, a hip rotation earlier, or a different wrist set. Cantlay will hit five to ten balls focusing on that feel without worrying about ball flight. He often uses exaggeration to ingrain the new pattern, then dials it back.
  4. Re-evaluate – Another recording is made. He compares the adjusted swing to the previous flawed one. If the change matches the desired pattern, he continues drilling; if not, they refine the feel or try a different cue. Cantlay may also use a slower swing speed to isolate the movement before building speed.

This cycle repeats until the video shows consistent improvement. Cantlay rarely spends more than 20 minutes on a single flaw before moving to a full-swing block where he integrates the change into his natural rhythm. The goal is not to overanalyze, but to use video as a reality check against what his body feels. He keeps a journal of each session, noting what worked and what didn’t, so he can refer back during slumps.

Benefits Beyond Flaw Correction

While video analysis is often associated with fixing hooks and slices, Cantlay uses it for much more. Benefits include:

  • Course management preparation – He films practice rounds to see how his swing holds up under different lies and wind conditions. By reviewing video from a practice round, he can decide which shot shapes to trust on the course.
  • Consistency across clubs – By comparing his driver swing to his 7-iron swing, he ensures that the basic mechanics stay constant, with only setup changes. This reduces the number of swing thoughts he carries into a round.
  • Mental rehearsal – Watching positive swings on video before a round reinforces the neural pathways, boosting confidence. Cantlay has a library of “good” swings he can review on his phone during travel.
  • Injury prevention – If a video shows a sudden change in spine tilt or excess stress on the lower back, Cantlay can adjust to avoid strain. He works with a physical therapist who also reviews the footage to identify compensatory patterns.
  • Competitive edge – While other players rely on feel alone, Cantlay has objective evidence to back up his practice. This reduces doubt when pressure mounts. Knowing his swing is repeatable under the gun gives him a psychological advantage.

Since adopting a rigorous video protocol, Cantlay has improved his strokes gained: approach the green from around average to top-ten on tour for multiple seasons. He credits the ability to diagnose issues before they become multi-week slumps. In 2022, he recorded a career-best season in greens in regulation, attributing much of that to his video-driven practice.

How Amateur Golfers Can Implement Similar Methods

You do not need a Phantom camera or a million-dollar budget to benefit from video analysis. Amateurs can replicate Cantlay’s process with a smartphone. Here’s how:

  1. Use slow-motion capture – Most modern phones can record at 240 fps. Set a tripod behind and to the side of the ball. Record five swings from each angle. Ensure the camera is positioned at hand height and perpendicular to the target line for down-the-line shots.
  2. Download a free video analysis app – Apps like Coach’s Eye or V1 Golf (free version) allow drawing, overlays, and frame-by-frame scrubbing. You can also use simple editing apps to slow down the clip and draw lines.
  3. Compare to a reference – Find a slow-motion video of Patrick Cantlay online (for example, from his PGA Tour profile) or of a local professional. Overlay your swing to see where you diverge. Focus on one or two key positions at a time.
  4. Focus on two key positions – Start with impact and the top of the backswing. If your clubface is open or closed at the top, that is a common starting point. Also check your spine angle – many amateurs lose it in the downswing.
  5. Set a weekly check – Dedicate ten minutes per practice session to recording and reviewing. Track one flaw at a time until the video shows it is gone. Keep a log of your findings to monitor progress over weeks.

External resources: For more on Cantlay’s swing mechanics, see his PGA Tour bio with swing analysis. For a guide on using smartphone video, check Golf Digest’s step-by-step instructions. For advanced data tracking, consider a TrackMan or Mevo+ launch monitor. Additionally, you can find slow-motion comparison drills on the PGA Tour YouTube channel that showcase swing positions from the world’s best.

Integrating Video with Feel

One caution Cantlay stresses: video should support feel, not replace it. He warns against becoming overly robotic. After a video session, he always hits balls without recording, focusing only on his target and body sensations. The video serves as a diagnostic tool, not a constant crutch. This balance between data and instinct is what separates a practiced professional from a mechanical one. By periodically checking in with video, you can maintain a swing that works under pressure. Cantlay also recommends using video only when you feel a flaw creeping in, rather than after every shot, to avoid overloading yourself with information. The goal is to build a natural, athletic motion that is validated by the camera, not dictated by it.

Conclusion

Patrick Cantlay’s methodical use of video analysis has shaped one of the most reliable swings on the PGA Tour. By capturing high-speed footage, tracking precise metrics, and following a disciplined record-analyze-adjust loop, he turns subjective feels into objective improvements. Any golfer, from beginner to elite, can adopt these principles with simple equipment and a willingness to see the truth on screen. The next time you hit the range, set up your phone, and start building the same feedback loop that helps a top-ten player keep his swing flawless. The results will speak for themselves – in your scores, your consistency, and your confidence under pressure.