andyson:lateball's shot seems to be repelled by the cup while Donko's seems attracted to the cup.
It's all about speed. One shot bulled its way past the hole, lost the momentum and rolled back down the hill, too fast to avoid that swerve. The other shot rolled up just past the hole and in rolling back down was slow enough for that swerve to not affect it the same way. In fact, it steered the ball to the hole. I'd say the laws of physics played true.