vi. Determine if a court continues to be fit for play. If a change in condition occurs during a match that the Chair Umpire considers sufficient to make the court unfit for play or if weather conditions require stoppage of play, the Chair Umpire should stop play and immediately notify the Supervisor. 

vii. Give the result of the match to the Referee and Supervisor immediately upon completion of the match and any action taken under the Code of Conduct during the match. 

viii. If necessary, overrule a Line Umpire. He/She must do so when a clear mistake has been made and must give a decision when a Line Umpire is unsighted. 

ix. Provide a detailed report on any Code of Conduct penalty issued in connection with the relevant match(es). 

x. Wear and use the officiating clothing, tablet, tablet holder, and microphone provided by the WTA. Except for the WTA Logo, no other commercial branding may be applied to the Chair Umpire clothing, scoring tablet, scoring tablet holder, or microphone without the WTA’s and the applicable Tournament’s prior approval. 

d. Line Umpires 

i. Responsibilities 

The responsibilities for Line Umpires shall be as follows: 

(a) Base, Side, Center Service, and Service Line Umpires call “Out” and “Fault” for their respective lines. 

(b) Base, Side, and Center Service Line Umpires call “Foot Fault” on their respective lines. 

(c) The Net Umpire calls all net cord services and assists with measuring the net and with ball changes. 

(d) To give the recognized safe signal to acknowledge that a ball is good. 

(e) To give the recognized unsighted hand signal when their view of the ball landing is obstructed. 

(f) To correct their call immediately upon realizing they have made a mistake. 

