Fielder has the right to occupy the territory necessary to field the ball, runner must give right of way to the fielder. In this case, runner is out.
No.
if the fielder is a) in the baseline, and b) doesn't have the ball, then no. If the runner goes out of the baseline to strike the fielder, he is out for leaving the baseline. If the fielder has the ball, and as a result of the collision he tags the runner, then runner is out. If the fielder has the ball and is trying to tag the runner, but the collision knocks the ball loose, then the runner is out if the umpire felt the contact was intentional, but it is a loose/live ball if the contact was accidental or otherwise part of the game.
The runner is out as long as the fielder you touches has the ball in his glove
No. The runner would be called for interference if, for some reason, he ran into the fielder.
No, once the fielder comes in contact with the batted ball a runner cannot be called for runner interference unless he intentionally goes out of his way (basepath) to make contact with the fielder
A player can run out of the path (for instance, while rounding the bases) as long as there is not a possible play. Once there is a possible play, the runner must be within 3-4 feet of the base path.
Yes. The fielder covering the base does NOT have to tag the runner. The runner is forced out when the fielder steps on the base before the runner can make it back. Got that.
Safe
If the fielder has fielded a ball and has it in his possesion yes. If the fielder is in the path of the base and does not have the ball, the answer is no New answer: The fielder may enter the base path to field a BATTED ball and the runner must avoid contact whether the fielder has possession or not. The above answer is correct for a thrown ball only. (ie. the third baseman cannot position himself on the basepath while waiting for a throw from left field while the runner is advancing from 1st to 3rd on a hit.
The fielder has to have the ball in his possession but if he drops it he doesn't have to tag up. Actually, the fielder doe NOT have to have possession of the ball for a base runner to tag up and advance. Once the runner is on the base ("tagging up") he may advance as soon as the fielder touches the ball, whether he has possession or not. In other words, the base runner may advance even if the fielder is bobbling the ball and then catches it, i. e. has possession.
An appeal has to be made by a fielder, though the Manager can point it out to his fielders.