年份
|
修改的内容
|
1930
|
Volleyed net-cord service results in a point to the
server.
|
1932
|
Artificial aids (eg rubber bands) and deformation of ball
to enhance finger-spin in service banned.
|
1934
|
Volleyed net-cord service to be a let.
|
1938
|
Reduction of net height and ban on finger-spin and
incorporated in Laws.
|
1947
|
In
service, free hand must be open and flat, with fingers together and
thumb free, and ball must not be gripped. Ball may be released by
free hand moving upward or dropping away.
|
1949
|
Ball in service must be projected
upwards.
|
1951
|
In
service the ball must be projected vertically upwards and the free
hand, while in contact with ball, must be
horizontal.
|
1952
|
Strict observance of service law may be waived where umpire
is notified beforehand that full compliance is prevented by
physical disability.
|
1954
|
Ball in service need not be projected
vertically.
|
1956
|
In
service, free hand need not be flat and horizontal, with fingers
straight.
|
1967
|
Limits set for bounce of ball on table. At start of
service, free hand must be stationary and above level of playing
surface; ball must be projected near vertically upwards and not
struck until it is descending.
|
1969
|
In
service, ball must be projected upwards within
45°of
vertical; free hand must be open and flat and, while in contact
with the ball, above the level of the playing
surface.
|
1981
|
obstructed net-cord service to be a let.
|
1983
|
Free hand and racket must be above level of playing surface
from start of service until ball is struck. Ball must be struck not
farther from table than rearmost part of server's body, other than
arm or leg. Point is scored by opponent if player stamps foot when
serving.
|
1987
|
In
service, ball must be projected near vertically upwards so that it
rises at least 16cm.
|
1989
|
Free hand, while in contact with ball in service, must be
behind server's end line. Ball in service must be projected 'near
vertically'.
|
1991
|
In
service the ball, but not necessarily whole of the free hand, must
be behind the server's end line. Foot-stamping in service will not
automatically incur the award of a point.
|
2002
|
Requirement for flat hand in service eliminated. In
service, racket need not be above level of playing surface and ball
may be struck anywhere behind server's end line provided it is not
hidden from opponent.
|
2003
|
As
soon as the ball has been projected in service, the server's free
arm must be removed from the space between the server's body and
the net.
|
2005
|
As
soon as the ball has been projected in service, the server's free
arm must be removed from the space between the ball and the
net.
|
