The gap between where the clubface points and where the clubhead is traveling at impact — face angle minus club path. This one number governs curve: the ball starts near the face and bends away from the path, so zero face-to-path flies straight, positive curves right, negative curves left. Small gaps matter enormously at speed: on a Tour driver carrying 275 yards, −2° is roughly 19 yards of left curve, and 5° balloons to about 44 yards right. A proper draw is a face closed to the path but still open to the target — which is why the sim shows both numbers side by side.

The gap between where the clubface points and where the clubhead is traveling at impact — face angle minus club path. This one number governs curve: the ball starts near the face and bends away from the path, so zero face-to-path flies straight, positive curves right, negative curves left. Small gaps matter enormously at speed: on a Tour driver carrying 275 yards, −2° is roughly 19 yards of left curve, and 5° balloons to about 44 yards right. A proper draw is a face closed to the path but still open to the target — which is why the sim shows both numbers side by side.