Appeal: the act of a fielder in claiming
violation of the rules by the offensive team.
Balk: an illegal act by the pitcher with a
runner or runners on base, entitling all
runners to advance one base.
Dead Ball: a ball out of play because of a
legally created temporary suspension of play.
Forfeited Game: a game declared ended by the
umpire in chief in favor of the offended team
by the score of 9 to 0, for violation of the
rules.
Illegal Pitch:
(1) a pitch delivered to the
batter when the pitcher does not have his pivot
foot in contact with the pitcher's plate;
(2) a quick return pitch. An illegal pitch when
runners are on base is a balk.
Interference:
(a) offensive interference is an act by the
team at bat which interferes with, obstructs,
impedes, hinders or confuses any fielder
attempting to make a play. If the umpire
declares the batter, batter runner, or a runner
out for interference, all other runners shall
return to the last base that was, in the
judgment of the umpire, legally touched at the
time of the interference, unless otherwise
provided by these rules. In the event the
batter runner has not reached first base, all
runners shall return to the base last occupied
at the time of the pitch.
(b) defensive interference is an act by a
fielder which hinders or prevents a batter from
hitting a pitch.
(c) umpire's interference occurs (1) When an
umpire hinders, impedes or prevents a catcher's
throw attempting to prevent a stolen base, or
(2) When a fair ball touches an umpire on fair
territory before passing a fielder.
(d) spectator interference occurs when a
spectator reaches out of the stands, or goes on
the playing field, and touches a live ball. On
any interference the ball is dead.
Obstruction: the act of a fielder who, while not in
possession of the ball and not in the act of fielding the
ball, impedes the progress of any runner. If a fielder is
about to receive a thrown ball and if the ball is in
flight directly toward and near enough to the fielder so
he must occupy his position to receive the ball he may be
considered "in the act of fielding a ball." It is
entirely up to the judgment of the umpire as to whether a
fielder is in the act of fielding a ball. After a fielder
has made an attempt to field a ball and missed, he can no
longer be in the "act of fielding" the ball. For example:
an infielder dives at a ground ball and the ball passes
him and he continues to lie on the ground and delays the
progress of the runner, he very likely has obstructed the
runner.
Squeeze Play: term to designate a play when a team, with
a runner on third base, attempts to score that runner by
means of a bunt.
Strike Zone: that area over home plate the upper limit of
which is a horizontal line at the midpoint between the
top of the shoulders and the top of the uniform pants,
and the lower level is a line at the hallow beneath the
knee cap. The Strike Zone shall be determined from the
batter's stance as the batter is prepared to swing at a
pitched ball.
Triple Play: a play by the defense in which three
offensive players are put out as a result of continuous
action, providing there is no error between putouts.