Day 119 without playing golf
Q: A player’s ball is lying against a root. He makes a stroke and the ball pops up into the air. In disgust, he swings at it on the way down, but misses. Was the swing in disgust a stroke?
A: No. Such an instinctive swing in anger is not a stroke. Nor should the player be considered to have taken action to influence the movement of the ball in breach of Rule 1-2. However, if the player had struck the ball accidentally while it was in motion, he would have incurred a penalty of loss of hole in match play or two strokes in stroke play – Rule 19-2a and -2b.
The Armchair Golfer
(Source: USGA)