Issue link: http://itf.uberflip.com/i/536583
7 be elevated above the surface of the court and should be positioned no less than twelve (12) feet (3.66 metres) from the side of the court. Chairs for Centre Service and Side Line Umpires should be located in the corners at the back of the court unless otherwise directed. Whenever the sun is a factor, Line Umpires' chairs should be positioned so that Line Umpires are not facing the sun. When the sun is not a factor, Line Umpire's chairs should be positioned on the opposite side of the court from the Chair Umpire. c. Net Device or Net Umpire's Chair A Net Device or a chair for the Net Umpire which shall be located at the net post on the opposite side from the Chair Umpire. d. Players' Chairs Chairs for the players shall be located on each side of the Chair Umpire. e. On-court Service Water, electrolyte drinks, cups, towels and sawdust shall be available to the players during each match. f. Measuring Device A measuring stick, tape measure or other measuring device shall be available for the measuring of the net height and location of the singles sticks. g. PDA or Scorecard, Stopwatch A PDA or Scorecard, Stopwatch shall be available to the Chair Umpire of each match. 9. Determine and notify competitors of the conditions of play (i.e. make of ball, number of balls, ball changes, type of surface, number of sets, tie- break/advantage sets and other items of interest), prior to the commencement of the tournament. 10. Designate in a highly visible place in a general players' area an Official Bulletin Board and notify all players of its designation and location. The daily Order of Play shall be posted on the Official Bulletin Board as soon as issued. It is the responsibility of all players to ascertain their schedules from the Referee for each day's play. 11. Designate a visible timepiece at a fixed location as the Official Clock of the tournament and notify all players of its designation and location. 12. Designate a specific area from which matches shall be called in accordance with the Order of Play using all available and reasonable means. Players must be ready to play when their matches are called. In unusual cases the Referee