ATP Equipment Rules

1.2 The Ball

The ball shall have a uniform outer surface and

shall be white or yellow in color. If there are any

seams they shall be stitchless.

The ball shall conform to the requirements

specified (...) and be more than two ounces

(56.7 grams) and less than two and

one-sixteenth ounces (58.5 grams) in weight.

(...)

1.3 The Racquet

Racquets failing to comply with the following

specifications are not approved for play under

the Rules of Tennis:

a. The hitting surface of the racquet shall

be flat and consist of a pattern of crossed

strings connected to a frame and

alternately interlaced or bonded where

they cross; and the stringing pattern shall

be generally uniform, and in particular not

less dense in the centre than in any other

area. The strings shall be free of attached

objects and protrusions other than those

utilized solely and specifically to limit or

prevent wear and tear or vibration, and

which are reasonable in size and

placement for such purposes.

b. For professional play, the frame of the

racquet shall not exceed 29 inches (73.66

cm.) in overall length, including the handle,

as from 1st January 1997. For

non-professional play, the frame of the

racquet shall not exceed 29 inches (73.66

cm.) in overall length including the handle,

as from 1st January 2000. Until 1st

January 2000, the maximum length of a

racquet for non-professional play shall be

32 inches (81.28 cm.). The frame of the

racquet shall not exceed 12 1/2 inches

(31.75 cm.) in overall width. The strung

surface shall not exceed 15 1/2 inches

(39.37cm.) in overall length, and 11 1/2

inches (29.21 cm.) in overall width.

c. The frame, including the handle, shall

be free of attached objects and devices

other than those utilized solely and

specifically to limit or prevent wear and

tear or vibration, or to distribute weight.

Any objects and devises must be

reasonable in size and placement for such

purposes.

d. The frame, including the handle, and the

strings, shall be free of any device which

makes it possible to change materially the

shape of the racquet, or to change the

weight distribution in the direction of the

longitudinal axis of the racquet which

would alter the swing moment of inertia,

during the playing of a point.

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