Worst thread title ever, I admit it! Anyway, I was talking to a tennis friend today and she raised an issue I am unsure about. She played a match, and her opponent committed some unsportsmanlike conduct (name-calling). The next day, she and I discussed what her options for handling this would be during the match. I said that if your opponent commits some significant rule infraction that makes it impossible or untenable to continue the match, you can walk off, file a grievance and be awarded the match (assuming you can prove whatever it is). Examples might be: Your opponent is cussing you out, threatening you, etc. Your opponent refuses to give you penalties to which you are entitled. For instance, your opponent arrives 14 minutes late, which under our rules would say she loses the toss and three games. She insisted the score begin at 0-0 like any other match. Your opponent insists that a set tiebreak is 10 points instead of 7. In those sorts of situations, am I correct that you could (read: could, not should) walk off the court and be awarded the match if you filed a grievance? What about more minor infractions, like crossing the net over your opponent's objection to examine a mark on clay? Could you refuse to play and win by filing a grievance?