10 drives
Map the contact
Use a safe face-marking method allowed at your range. Hit ten drives with your usual tee height and count strikes near the center of the face.
A slice can have more than one cause. Observe contact, start direction, and curve separately so your next change is based on a pattern rather than one shot.
Choose your focus Start with the shot that needs work.
Follow one clear test Keep the setup and attempts consistent.
Track your result Repeat and compare your own scores.
Your practice toolkit
This guide helps you collect evidence. It does not diagnose your swing from a single ball flight.
10 drives
Use a safe face-marking method allowed at your range. Hit ten drives with your usual tee height and count strikes near the center of the face.
10 more drives
Pick two distant landmarks that form a realistic fairway-width window. Keep the same target for ten drives and count starts inside it.
One pattern
For each shot, note where it started and how it curved. Starting left and curving right is a different pattern from starting right and continuing right.
Illustrations show the setup, not exact distances. Use a designated practice area and keep other golfers clear of your shots.
Follow your facility's rules for face-marking products and use a safe target area.
Put the plan into practice
Adjust tee height only if contact is consistently high or low. If strikes vary widely, work on centered contact before drawing conclusions from flight.
Record your sessionMake five controlled swings before starting the test.
Use your normal setup and safe face-marking method.
Aim toward the same window and keep every attempt.
Record the common flight and repeat the setup next time.