AI Fitting vs Expert Fitting: Two approaches. One principle: adapt the putter to the player.
For years, choosing a putter has often been based on feel or appearance. But a putting stroke is never standard. It has its own face rotation, rhythm, and consistency profile.
At RUNNER, we built our philosophy around one idea: the putter must adapt to the golfer — not the other way around.
That is why we developed two complementary fitting experiences: Easy AI Fitting and Expert Fitting. They share the same modular foundation but differ in analytical depth.
Easy AI Fitting
A structured digital questionnaire for fast customization
Easy AI Fitting is based on a guided digital questionnaire. The process is designed to be simple, clear, and efficient, without requiring motion capture or sensor-based analysis.
Golfers answer a series of targeted questions about:
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Stroke type (arc or straight)
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Miss tendency (right, left, short)
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Height, to determine proper length
Preferred head design (blade or mallet)

Based on these inputs, the system recommends a suitable configuration within the 2800 possible combinations offered by RUNNER’s modular platform.
From there, balance can be fine-tuned using the 78 available weight adjustment positions, allowing players to correct directional tendencies or stabilize impact dynamics.
Easy AI Fitting does not measure the stroke directly. It interprets structured player inputs to guide them toward a coherent, performance-driven setup.
It is ideal for golfers seeking clarity, speed, and real customization without deep technical analysis.

Expert Fitting
Complete data analysis for maximum precision
Expert Fitting operates on a different level. It is based on a comprehensive data analysis of the golfer’s stroke.
Using the GolfBoy tool, the putting motion is captured and measured. Key performance indicators include:
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Average face rotation
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Club head path
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Tempo consistency
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Impact stability
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Repeated directional deviations
These objective data points define the golfer’s true stroke signature. The putter is then configured within the 2800 available combinations, tested, and dynamically validated.
Weight distribution is precisely refined using the 78 adjustment positions until the balance fully aligns with the golfer’s natural motion.
The distinction is clear:
Easy AI Fitting structures a recommendation through a questionnaire.
Expert Fitting builds a solution from measured data.
This approach is particularly relevant for committed players, competitors, and golfers who treat equipment as a performance tool rather than a simple purchase.
One philosophy. Two levels of precision.
Both fitting experiences rely on the same modular DNA and the same objective: reducing compromise.
Easy AI Fitting delivers structured, rapid adaptation.
Expert Fitting provides deep analytical optimization.
A standard putter forces adaptation from the player.
A fitted putter works in harmony with the stroke.
At RUNNER, performance is not a claim.
It is a measurable outcome.
Our ambition goes beyond our own products. We are already working on the next evolution of fitting.



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EXPERT FITTING, Where data meets precision