Center mark
 A mark half-way across the baseline,
 effectively the extension of the center line.
 When serving, players must remain on the
 correct side of this mark.

 Change of ends
 The players change ends of the court regularly
 during tennis matches, e.g. after every
 "uneven" game (1,3,5) in a set.

 Chop
 A backspin, defensive shot used to return fast
 services. Occasionally also used for drop
 shots.

 Claycourt
 A court with a surface made of crushed shale,
 stone or brick.

 Continental grip
 Method of holding the racquet for playing
 powerful backhands, serves, volleys and
 smashes. The most common grip for forehand
 and backhand strokes.

 Cross shot
 A stroke played diagonally across the court,
 either long or short. Long cross shots are
 usually played from baseline to baseline, while
 short cross shots generally bounce near the
 opponent's service court line, often being
 played with topspin.