Originally Posted by dlam
...Played another league match...
Play Senior Age Group tournaments instead and you will get the right call. You will get a good shellacking for awhile but consider it cheap lessons. Use your team and league matches for practice for your real competition. Your frustrations with rec/league players will not lessen, they will only get greater as your game improves. These players eyesight and ethics are not going to improve with age, they will only get worse, they are "ham"atures. They have trouble tracking a close fast ball, they will cheat themselves too--but eight out of ten times it's you they cheat. They haven't heard of the admonition in The Code, when in doubt the call goes to your opponent or to ask for your opponent's help on calls since they may have a better angle of view--or better eyesight. Age Group players are like pros--and many of them are teaching pros--hence a cheap lesson for you on what it takes to really win at tennis and maybe life.
You must learn to let go of the cheating by your opponents in your practice matches. Your goal should be to hit as many practice shots with intention as you can to improve. Arguing and letting your mind stray from improving your game to your opponents "games" will delay your progress. If your opponent screws you on one point, that could account for 25% of that game--it's going to be hard to overcome that kind of unfair advantage--make him buy the beer after and don't be too anxious to show your new can of balls.