Rules

20. Player Loses Point
A player loses the point if:
a. He fails, before the ball in play has hit the ground twice consecutively, to return it directly over the net (except as provided in Rule 24(a) or (c)); or
b. He returns the ball in play so that it hits the ground, a permanent fixture, or other object, outside any of the lines which bound his opponent's Court; or
c. He volleys the ball and fails to make a good return even when standing outside the Court; or

USTA Comment: A ball hitting a scoring device or other object attached to a net post results in loss of point to the striker.

d. In playing the ball he deliberately carries or catches it on his racket or deliberately touches it with his racket more than once; or

USTA Comment: Only when there is a definite "second push" by the player does his shot become illegal, with consequent loss of point. The word "deliberately" is the key word in this rule. Two hits occurring in the course of a single continuous swing are not deemed a double hit.

e. He or his racket (in his hand or otherwise) or anything which he wears or carries touches the net, posts, singles sticks, cord or metal cable, strap or band, or the ground within his opponent's Court at any time while the ball is in play; or

USTA Comment: Touching a pipe support that runs across the Court at the bottom of the net is interpreted as touching the net. See USTA Comment under Rule 23 for a ball which hits a pipe support.

f. He volleys the ball before it has passed the net; or
g. The ball in play touches him or anything that he wears or carries, except his racket in his hand or hands; or

USTA Comment: This loss of point occurs regardless of whether the player is inside or outside the bounds of his Court when the ball touches him.

h. He throws his racket at and hits the ball; or
i. He deliberately and materially changes the shape of his racket during the playing of the point.

Case 1. In serving, the racket flies from the Server's hand and touches the net before the ball has touched the ground. Is this a fault, or does the player lose the point?
Decision: The Server loses the point because his racket touches the net whilst the ball is in play (Rule 20(e)).

Case 2. In serving, the racket flies from the Server's hand and touches the net after the ball has touched the ground outside the proper court. Is this a fault, or does the player lose the point?
Decision: This is a fault because the ball was out of play when the racket touched the net.

Case 3. A and B are playing against C and D, A is serving to D, C touches the net before the ball touches the ground. A fault is then called because the service falls outside the Service Court. Do C and D lose the point?
Decision: The call "fault" is an erroneous one. C and D had already lost the point before "fault" could be called, because C touched the net whilst the ball was in play (Rule 20(e)).

Case 4. May a player jump over the net into his opponent's Court while the ball is in play and not suffer penalty?
Decision. No. He loses the point (Rule 20(e)).

Case 5. A cuts the ball just over the net, and it returns to A's side. B, unable to reach the ball, throws his racket and hits the ball. Both racket and ball fall over the net on A's Court. A returns the ball outside of B's Court. Does B win or lose the point?
Decision: B loses the point (Rule 20(e) and (h)).

Case 6. A player standing outside the service Court is struck by a service ball before it has touched the ground. Does he win or lose the point?
Decision: The player struck loses the point (Rule 20(g)), except as provided under Rule 14(a).

Case 7. A player standing outside the Court volleys the ball or catches it in his hand and claims the point because the ball was certainly going out of court.
Decision: In no circumstances can he claim the point:
i. If he catches the ball he loses the point under Rule 20(g).
ii. If he volleys it and makes a bad return he loses the point under Rule 20(c).
iii. If he volleys it and makes a good return, the rally continues.