EXPERT FITTING

Where data meets precision

Choosing a putter based on feel can work.
Optimizing a putter based on measured data changes everything.

At RUNNER, Expert Fitting represents the most advanced level of our fitting philosophy. This is not about answering questions. It is about measuring, understanding, and engineering your putter around your real stroke dynamics.

The goal is simple: build a putter that works in perfect harmony with your natural motion.

GolfBoy: measure to understand

Expert Fitting relies on GolfBoy, a stroke analysis system that captures and interprets putting data.

Using video capture and performance tracking, GolfBoy analyzes key parameters such as:

• Average face rotation at impact

• Club head path

• Tempo consistency

• Face stability

• Repeated directional deviations

• Impact consistency

This is not subjective evaluation.
It is measurable data.

From this analysis, the golfer’s true stroke signature is defined.

2800 configurations for total adaptation

Once the data has been analyzed, the putter is configured within RUNNER’s modular architecture, offering more than 2800 possible combinations.

Head shape, shaft type, initial weight distribution — every element is selected based on measured results.

The recommended configuration is then tested and validated through a new stroke analysis session.

This creates a feedback loop focused on optimization, not assumption.

78 weight adjustment positions for fine-tuning

Like all RUNNER putters, Expert Fitting includes the sliding weight system offering 78 precise adjustment positions.

The difference lies in how those adjustments are made.

If data shows the face remains slightly open at impact, weight distribution is modified to encourage natural closure.
If tempo instability appears, balance is refined to improve dynamic control.
If dispersion is inconsistent, mass placement is optimized to stabilize head movement.

Every adjustment can be validated through measurable feedback.

A rational approach to performance

Expert Fitting is designed for golfers who want to understand and optimize their stroke objectively.

It is particularly suited for:

• Competitive players

• Low-handicap golfers

• Performance-focused athletes

• Golfers seeking measurable improvement

GolfBoy transforms fitting from a subjective experience into a structured, repeatable, data-driven process.

The fundamental difference

Easy AI Fitting structures a recommendation through a questionnaire.
Expert Fitting builds a solution from real stroke data.

Both rely on RUNNER’s modular platform.
Expert Fitting simply pushes precision to its highest level.

A standard putter forces adaptation.
A precisely engineered putter works with your mechanics.

At RUNNER, performance is not a claim.
It is measured.

Our ambition goes beyond our own products. We are already working on the next evolution of fitting.