See the rule text (8)
U. When a runner abandons a base and enters the team area or leaves live ball territory. Effect: 1 The ball is dead. 2 The runner is out. 3 Runners must return to the last base touched at the time of the infraction. V. When a runner is positioned behind and not in contact with a base to get a running start on any fly ball. Effect: 1 The ball remains live. 2 The runner is out.
F. When the runner leaves a base to advance to another base before a caught fly ball has touched a fielder, providing the ball is returned to the infield and properly appealed. G. When the runner fails to touch a base or bases in regular or reverse order and the ball is returned to the infield and properly appealed. If the runner put out is the batter-runner at first base, or any other runner forced to advance because the batter became a batter-runner, this is a force out. H. When the batter-runner legally overruns first base, attempts to run to second base and is legally touched with the ball while not in contact with the base.
Following a "Time Out", should two or more base runners change positions on the base they originally held, the runners involved shall be called out and the manager of the offending team ejected.
c Responsibilities of the batter-runner after reaching first base, and while the pitcher has control of the ball within the eight foot radius of the pitcher's plate, including a base on balls or a dropped third strike, are as follows: 1 A batter-runner who rounds first base toward second base may stop once, but then must immediately non-stop return to first base or attempt to advance non-stop to second base. 2 A batter-runner who over-runs first base toward right field, turns left and immediately stops, must then return non-stop to first base or attempt to advance non-stop to second base. 3 A batter-runner who over-runs first base toward right field, turns left and moves directly toward second base and stops, is committed to second base and must attempt to advance non-stop to second base. 4 A batter-runner who over-runs first base toward right field, turns left and moves back toward the infield in any direction except directly toward second base, is committed to first base and must return non-stop to first base. 5 A batter-runner who over-runs first base toward right field, and turns right, is committed to first base and must return non-stop to first base.
P. When a runner legally returns to a base left too soon or missed prior to an appeal being made, or is returning to a base during a dead ball.
S. (Fast Pitch) When the runner fails to keep contact with the base to which the runner is entitled until the ball leaves the pitcher's hand. Effect - Section 7S: 1 The ball is dead. 2 "No pitch" is declared. 3 The runner is out.
A. When running to any base in regular or reverse order and the runner runs more than three feet from the base path to avoid being touched by the ball in the hand or glove of a fielder. B. When the ball is live and while the runner is not in contact with a base, the runner is legally touched with the ball in the hand(s) of a fielder. C. When, on a force play, a fielder contacts the base while holding the ball or tags the runner before the runner reaches the base. If the forced runner, after touching the next base, retreats for any reason toward the base first occupied, the force play is reinstated and the runner may again be put out if the defense tags the runner or the base to which the runner is forced. Effect - Section A-C: The ball remains live.
Exception: 1. When a fielder loses possession of the ball, and the ball leaves live ball territory or becomes blocked. Effect: a. The ball is dead. b. Each runner is awarded one base from the last base touched at the time the ball entered dead ball territory or became blocked. 2. When the ball becomes dead, runners must return to touch a base missed or left too soon if they have advanced, touched, and are a base beyond the base missed or left too soon. Note: Runners must be given the opportunity to complete their base running responsibilities. A runner shall not be declared out if a fielder deliberately carries or throws the ball into dead ball territory to prevent that runner from returning to a base missed or left too soon. Once a runner leaves live ball territory they cannot return to touch any base missed or left too soon.