Championship Green & Fall Line
Putt Record: 0 / 0 (0%)True Gravity Vector & Fall Line
The ball breaks in the direction of the fall line (maximum downhill gradient). Because gravitational acceleration along slope $a_g = g \sin\theta$ is constant while friction deceleration drops ball speed, putts curve much sharper as they lose forward velocity near the cup.
The 17-Inch Capture Speed Rule
Dave Pelz and PGA Tour statistics show the optimal putt pace has enough energy to roll 17 inches past the cup if it missed. Too soft (dying in the hole) makes the ball susceptible to spike marks and lip-outs; too fast shrinks the effective hole diameter to zero.
Presidents Cup Clutch Putting
Russell Henley’s lead-taking 30-footer at the Presidents Cup demanded matching an exacting 12.5+ Stimp tournament green with double-tier slope compensation. This simulator models the exact trajectory, break curvature, and drop window.