Getting Started with PuttrLab

How to Attach the Tracking Marker

The marker attaches to the top of your putter head — the flat surface you see when you look down at address. It works with both blade and mallet style putters. The black dot must be closest to the putter face or metrics will be inaccurate.

Printing and Attaching Your Marker

Print the marker PDF on pure white cardstock, or print on regular paper and secure it to a piece of thin cardboard for rigidity. The printing quality must be high for the tracking to work effectively (no smudges, streaks, lines, fading, etc.). Cut out the marker precisely along the thin black line — the white border around the black pattern is part of the marker and must be included. Apply a piece of double-sided tape to the back, then press it firmly onto the top of your putter head with no bubbles or lifted edges. The tab at the bottom is intended for blade style putters and can be cut off if it's not needed.

Tips for Best Results

• The marker should not move or flex during your stroke. If it shifts, your data will be inaccurate.
• For a more rigid DIY marker, glue or tape the printed marker onto a thin piece of cardboard before attaching to the putter.
• Keep the marker clean and free of dirt or scuff marks.
• The marker adds minimal weight and should not affect the feel of your putter.

Running Your First Session

1. Open PuttrLab and allow camera access when prompted.
2. In the free version, sessions are pre-configured (3 putts, 8 seconds between putts, 4-second putt window) — just tap to start. With PuttrLab Pro, you can configure the number of putts, timing, and add a session tag before you begin.
3. Position yourself at address and check the camera preview — you should see a live feed with the marker in view of the camera. Ensure the camera is level for highest metric accuracy (you can use the Measure app to ensure the phone is level).
4. When the app confirms the marker is detected, you're ready to go.
5. Putt naturally. The app will automatically detect each stroke and record the metrics.
6. After each putt, the metrics will be displayed on the screen. At the end of a session, the session averages will be displayed.
7. Pro only: Every session is saved automatically. Tap View Data on the home screen to see your metrics charted over time — session by session or date by date — along with personalized coaching tips based on your averages.

Tips for Accurate Sessions

• Keep your phone plugged in or fully charged. Camera-based tracking can consume battery.
• Putt on a flat, well-lit surface. The app works best in natural daylight but also works under artificial lighting.
• Avoid shadows falling across the marker during your stroke.
• Stay consistent with your setup — same tripod height and angle for each session so your data is comparable over time.
• For best accuracy, position the ball as close to the green dot as possible. A slight tilt of the phone is fine — keeping the tracker near the center of the frame is more important than being perfectly level.