content_image/662437.jpg
## X. EXHIBITS 

d.  Only the ball types specified in the table below can be used in 10 and under tennis competition: 

<img src='content_image/662437.jpg'>

Notes: 

1 The deformation shall be the average of a single reading along each of three perpendicular axes. There is no limit on the difference between individual forward deformation readings. There is no specification for return deformation. 

2  All coloured dots shall be reasonable in size and placement. 

e.  All tests for rebound, mass, size, deformation and durability shall be made in accor - dance with the Regulations described in the current edition of ITF Approved Tennis Balls & Classified Court Surfaces. 

The ITF test method used for determining the pace of a court surface is ITF CS 01/02 (ITF Court Pace Rating) as described in the ITF publication entitled “ITF guide to test methods for tennis court surfaces”. 

Court surfaces which have an ITF Court Pace Rating of 0 to 29 shall be classified as being Category 1 (slow pace). Examples of court surface types which conform to this classification will include most clay courts and other types of unbound mineral surface. 

Court surfaces which have an ITF Court Pace Rating of 30 to 34 shall be classified as being Category 2 (medium-slow pace), while court surfaces with an ITF Court Pace Rating of 35 to 39 shall be classified as being Category 3 (medium pace). Examples of court surface types which conform to this classification will include most acrylic coated surfaces plus some carpet surfaces. 

Court surfaces with an ITF Court Pace Rating of 40 to 44 shall be classified as being Category 4 (medium-fast pace), while court surfaces which have an ITF Court Pace Rating of 45 or more shall be classified as being Category 5 (fast pace). Examples of court surface types which conform to this classification will include most natural grass, artificial grass and some carpet surfaces. 

Case 1: Which ball type should be used on which court surface? 

## CLASSIFICATION OF COURT PACE 

## X. EXHIBITS 

Decision: 3 different types of balls are approved for play under the Rules of Tennis, however: 

Note : In addition to the ball types specified under paragraph (b) above, the Stage 1 (Green) ball may be used for all levels of competitive play except for world ranking professional tennis events, Davis Cup and Billie Jean King Cup, the Olympic and Paralympic Tennis Events, World Tennis Tour Men’s, Women’s and Junior Tourna - ments and Team events sanctioned by the ITF and affiliated Regional Associations, ITF Senior Circuit and Team events and ITF Wheelchair Tennis Tour Circuit and Team events. 

Each National Association shall have the right to decide which national competitive events should use the stage 1 (green) ball. 

For all measurements in Appendix II, SI units shall take precedence 

a. The racket shall consist of a frame and string(s). The frame shall consist of a handle and head, and may also include a throat. The head is defined as that part of the racket to which the string(s) connect. The handle is defined as that part of the racket connected to the head which is held by the player in normal use. The throat, where present, is that part of the racket that joins the handle to the head. 

b. The hitting surface, defined as the main area of the stringing pattern bordered by the points of entry of the strings into the head or points of contact of the strings with the head, whichever is the smaller, shall be flat and consist of a pattern of crossed strings, which shall be alternately interlaced or bonded where they cross. The stringing pattern must be generally uniform and, in particular, not less dense in the center than in any other area. The racket shall be designed and strung such that the playing characteristics are identical on both faces. 

c. The racket shall not exceed 73.7 cm (29.0 inches) in overall length, and 31.7 cm (12.5 inches) in overall width. The hitting surface shall not exceed 39.4 cm (15.5 inches) in overall length, when measured parallel to the longitudinal axis of the handle, and 29.2 cm (11.5 inches) in overall width, when measured perpendicular to the longitudinal axis of the handle. 

d. The racket shall be free of any attached object, protrusion or device which makes it possible to change materially the shape of the racket, or its moment of inertia about any principal axis, or to change any physical property which may affect the performance of the racket during the playing of a point. Attached objects, protrusions and devices that are approved as Player Analysis Technology, or that 

a. Ball Type 1 (fast speed) is intended for play on slow pace court sur - faces 

b. Ball Type 2 (medium speed) is intended for play on medium-slow, medium and medium-fast pace court surfaces 

c. Ball Type 3 (slow speed) is intended for play on fast pace court sur - faces 

APPENDIX II 

THE RACKET 

