Five Most Important Iron Fitting Parameters
Today’s launch monitors provide a wealth of data during a golf fitting — but not every data point is critical when it comes to choosing your next set of irons. To make the most of your fitting, it’s important to focus on the metrics that directly impact on-course performance. Here are the five key fitting parameters every golfer should understand before selecting new irons.
1. Carry Distance
Carry distance refers to how far the ball travels in the air before hitting the ground — not including roll. It's essential for clearing hazards and holding greens, and it provides a more accurate picture of usable distance than total yardage.
2. Ball Speed
Ball speed measures how fast the ball leaves the clubface. It's one of the biggest contributors to distance. The right combination of clubhead and shaft can significantly increase ball speed, helping you hit longer and more efficient iron shots.
3. Descent Angle
The descent angle is the angle at which the ball comes down toward the ground. A steeper descent angle helps the ball stop more quickly on the green, improving accuracy and proximity to the pin. This is crucial for scoring, especially with mid and short irons.
4. Dispersion
Dispersion measures the consistency of your shot pattern. A tight dispersion means your shots are grouping closer together — a key to improved accuracy and predictability. Wide dispersion, on the other hand, leads to missed greens and inconsistent results.
5. Spin Rate
Spin rate affects launch, height, and stopping power. The ideal spin rate varies based on swing speed and playing style, but finding the right balance is key. Too little spin may cause the ball to fly low and run off greens; too much spin can balloon shots and rob distance.
Conclusion
During your iron fitting, your professional fitter will evaluate these five parameters along with additional data to find the best clubhead and shaft combination for your game. Not every number has to be perfect, but focusing on these core metrics will give you a reliable foundation for improved iron performance.