Full Definition
The two-plane swing (popularized by Jim Hardy's book The Plane Truth for Golfers) describes a swing where the arm swing plane is significantly steeper (more vertical) than the shoulder turn plane. Characteristics: more upright address, arms swing independently of body rotation more, club approaches impact from a steeper angle, suits golfers with a natural tendency to lift the arms in the backswing. The one-plane swing (contrast) keeps arms and shoulders on the same plane, requiring more shoulder tilt. The two-plane swing can produce accurate iron play through the steep angle (descending blow on irons) but can create an over-the-top path if the arms outrun the body turn. GOATY arm and shoulder tracking measures whether your swing operates on one or two planes.
See How Two Plane Swing 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 two plane swing — that determine your ball-striking quality.
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GOATY arm and shoulder tracking measures your swing plane tendencies — one-plane vs two-plane — informing coaching decisions about your natural motion. Book a free live lesson to see your own two plane swing data in real time during your practice session.
Frequently Asked Questions
What is Two Plane Swing in golf?
A swing style where the arm plane during the downswing is steeper than the shoulder turn plane.
Why does two plane swing matter for scoring?
The two-plane swing (popularized by Jim Hardy's book The Plane Truth for Golfers) describes a swing where the arm swing plane is significantly steeper (more vertical) than the shoulder turn plane. Characteristics: more upright address, arms swing independently of body rotation mo...
How can I improve my two plane swing?
GOATY arm and shoulder tracking measures your swing plane tendencies — one-plane vs two-plane — informing coaching decisions about your natural motion. GOATY AI measures your two plane swing 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 two plane swing for an amateur golfer?
The benchmark is the GOAT Model — elite swing mechanics scored at 97.3. GOATY AI shows you exactly how your two plane swing compares to this elite standard and coaches you toward it session by session.