Closure Rate

How fast the clubface is rotating closed at impact, measured in degrees per second.

Full Definition

Closure rate measures the rotational speed of the clubface at impact, indicating how quickly the face is closing (rotating from open to closed). A positive closure rate means the face is rotating toward closed at impact; negative would mean it's opening. This metric is captured by photometric launch monitors like Foresight that can track clubhead rotation through high-speed cameras.

Optimal Range

Varies significantly by swing type; typically 1500-3000°/sec for full swings

Why It Matters

Closure rate affects timing and consistency. A high closure rate means your face angle is changing rapidly through impact—if your timing is off by even a few milliseconds, the face angle will be different. Players with lower closure rates often have more consistent face angles. Understanding your closure rate helps diagnose directional inconsistency.

Related Terms

Ready to analyze your launch monitor data?

SimSights uses AI to turn your shot data into actionable insights. Upload screenshots or import CSV files from any launch monitor.

Request Beta Access