Full Definition
Ground reaction force (GRF) is Newton's third law applied to golf — when you push into the ground, the ground pushes back. Elite golfers use the ground as a power platform, driving force through their feet into the kinetic chain that accelerates the club. Modern force plate research shows tour professionals generate 1.5-2x their body weight in vertical ground force at key moments in the swing. GOATY's ANCHOR score evaluates the hip and lower body mechanics associated with effective ground force usage.
See How Ground Reaction Force Affects YOUR Swing — In Real Time
GOATY AI watches your swing live through your camera, speaks coaching cues in your ear while you swing, and measures the exact biomechanics — including ground reaction force — that determine your ball-striking quality.
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Ground force starts with the lower body — GOATY's ANCHOR score measures your hip and pelvis mechanics. Book a free live lesson to see your own ground reaction force data in real time during your practice session.
Frequently Asked Questions
What is Ground Reaction Force in golf?
The force the ground exerts back on the golfer's feet — the starting point of swing power.
Why does ground reaction force matter for scoring?
Ground reaction force (GRF) is Newton's third law applied to golf — when you push into the ground, the ground pushes back. Elite golfers use the ground as a power platform, driving force through their feet into the kinetic chain that accelerates the club. Modern force plate resea...
How can I improve my ground reaction force?
Ground force starts with the lower body — GOATY's ANCHOR score measures your hip and pelvis mechanics. GOATY AI measures your ground reaction force in real time during live practice sessions — giving you instant feedback without needing to film and review video after the fact.
What is a good ground reaction force for an amateur golfer?
The benchmark is the GOAT Model — elite swing mechanics scored at 97.3. GOATY AI shows you exactly how your ground reaction force compares to this elite standard and coaches you toward it session by session.