13.E.5.   .  If a player disagrees with a line judges “out” call that benefited their team, the player may overrule the “out” call as “in” per rule 6.D.13.  A replay will occur, unless the team that made the call to their detriment wishes to concede the rally.

Legislative format showing the changes to the original rule.

13.E.5.   .  If a player disagrees with a line judges “out” call that benefited their team, the player may overrule the “out” call as “in” per rule 6.D.13.  A replay will occur, unless the team that made the call to their detriment wishes to concede the rally.

Rule 13.E.5.  If a player disagrees with a line judges “out” call that benefited their team, the player may overrule the “out” call as “in” per rule 6.D.13.  A replay will occur.

It has been a cause for frustration and conflict in more than one match I know about that the referee is by rule forced to replay a rally when a player overrules a line judges or referees "out" call call to their disadvantage.   The team gets upset and argues with the ref when he calls for a replay,  when they feel that they had no chance to return what was in their opinion a clear winner and they want to concede the rally.   It seems only fair and in the spirit of good sportsmanship to allow the player or team to concede the rally after making the call to their own detriment if they so choose.

During a singles match with lines judges, Player A hits a hard cross court shot to the baseline corner away from Player B who is at the NVZ.  The line judge calls "out".  Lead Referee calls "Point".  Player B overrules the call and says the ball hit both lines in the corner for a clear winner.  The lead referee calls "Referee Error, replay".   Player B tells the lead referee that the ball was a clear winner and he wishes to concede the rally.  The lead referee says "by rule a team may concede a rally ended by a referee error to their detriment.  Point".