Tdub
New User
It amazes me how many good, seasoned intermediate club players do the following: a) overrule his non-serve-receiving partner's "out" service line call (especially where the serve is faster, and thus harder to judge, and the non-receiver is standing on the service line looking down the line), b) generally not understand when he should defer to his partner on line calls, not understanding, e.g., that looking down the line is a superior view than looking across the line, c) not call his or his partner's shot out on the other side of the net (except in cases of first service) which obviously landed out (where the opponents don't call it out because they don't have a good a view of where the ball lands), d) question opponents' line calls when you're not in a (clearly) better position to see whether the ball is in or out (as would the contrary be, e.g., where you are near the net and looking down the line the ball falls on), and e) have no idea that there are "rules" that apply to unofficiated club play, specifically that this is the USTA Code, only 7 pages long, published each year, and can be found for free on the web.