Something that I noticed happening in almost every game is the following: The hitter grounds out and the defense has an easy out on first. The defense takes the out on the first base and the hitter, who has since become a runner, hasn't even made it halfway to the first. Yet he continuous to jog to first, he steps on it and then he retires.
Why does he continue to run, although he is out? Does it have any effect on statistics whether the runner made it to first or not? Or maybe it is a way of the hitter to gain some confidence or even get into the pitchers/defense head. "You didn't get me this time because you beat me to the first. Next time I will be there in time". Is this the case?