In most sports, scores, calls and points are kept by a neutral party.
In tennis, like golf, those are made by the players.
They decide if a ball is in or out and keep a running score during the match.
You would think it a few girls might cut corners and not make accurate calls to benefit them.
''Ninety-nine percent of the time, the girls in this area, the girls do the honor system,'' Liberty girls tennis coach Jimmy Leslie said.
It begins with proper instruction from the coach.
''What you have to do is train the girls appropriately on how to keep score,'' Leslie said. ''Then, you hope they go out there and do it.''
During the matches, Leslie and other coaches are just spectators.
''As a coach, I can't go out there and overrule a score unless a girl asks for a line judge,'' he said.
There's a procedure to go through before a line judge, which are used more frequently during sectionals, districts and state, comes into play. Normally, there are no line judges for regular-season play.
''We have a three-rule system,'' Leslie said. ''The first time you let it go, everybody makes mistakes. The second time, you make sure you question the other girl, like, 'Hey, are you sure that was out?' Then if it comes up to a third time, that's when you can call for a line judge.''
The home court has to provide a line judge, which is normally the head coach or assistant coach.
''They just go out there and watch,'' Leslie said. ''The girls still continue to make the calls. The only time the coach is allowed to interject is if the girl questions it. For example, if someone hits it in and the girl calls it out. If the girl wants to question it, they look to the line judge and they will overrule.''
Normally, all the coach can do is watch and hope the practice and instruction paid off prior to the matches.
''Even as a coach you see the ball clearly out, but they don't call it out. That gets frustrating,'' Leslie said. ''The last couple of years, a lot of my girls will play balls that are out and won't call them out.''
But, that's part of tennis.