New technology for line-calling

This was the first time that the tournament used the Hawk-Eye system in an official line-calling capacity, as an auxiliary to the human line judges. Players were given the opportunity to challenge a human line call if they believed it to be incorrect, by having Hawk-Eye confirm or overrule the original call. The system was installed on only one court being used for the tournament, in the Rod Laver Arena.







At the beginning of a set, the players were each given the opportunity to incorrectly challenge a maximum of two line calls during the set. A player who still had some incorrect challenges remaining was allowed to make an unlimited number of correct challenges, but when a player had no incorrect challenges remaining, his or her opportunity to challenge line calls was lost. Players received an extra incorrect challenge during a tiebreak. The players regained both challenges at the beginning of each set and also after every 12 games in the final deciding set. Unused challenges did not carry over when this happened.





An additional aspect to the new system was that a video replay screen was installed inside the arena for the first time, to display the results of the challenges. The screen also allowed the spectators (and players themselves) to view instant replays that could previously only be seen by the television audience and those viewing the match on screens outside the stadium. This implementation caused noticeable drama in a match between No. 2 Amélie Mauresmo and Olga Poutchkova in which Mauresmo challenged the in call on Poutchkova's shot and the replay showed the ball out graphically but still called the ball in.