What does FORCE ERROR and UNFORCE ERROR means in tennis?
78959
Forced error, when your play has forced your opponent into making a mistake on a returned ball. \n(A short shot at the net forces you to run in, you get to it but hit it long.)\nUnforced error, when you make a mistake in playing the ball with no real cause.\n(A realtively routine shot is hit to you, you return but hit it long)
101298
Contact sports seem to lead to spitting and patting of arses. Tennis players, fortunately, are separated by a net, so that can't happen...the patting part, anyway.\n\nAnd spitting isn't allowed on any tennis court that I know of.
758718
instructions here --> http://tennis.about.com/od/forehandbackhand/ss/fhtopspinlobsbs.htm
364970
The first and second serves are fundamentally different.  A first serve is an aggressive serve you hit to try either for an ouright winner or at least a weak return.  The second serve should be a defensive serve you know will go in that minimizes the chance your opponent will hit a return winner.  Most pro's hit a hard first serve, either flat or a slice, then for a second serve they hit either a kick or a twist because the top spin makes sure it goes in and the high bounce makes it tough to hit an aggressive return on.  You definitely don't want to double fault and give away free points.\n\nThe trick to getting your second serve solid is to 1. pick which serve you're going to use and 2. hit nothing but second serves everytime you play, until you can hit the second serve with 100% guarantee it's going to go in.  Once you have it down, go back to your usual 1st serve/ 2nd serve strategy.  You'll no longer feel shaky on your second serve because you'll know for sure you can put it in the service box.  This will also free you up on your first serve to really go for it, since you don't have to worry about double faults.
643548
The vast majority of the time, the problem is the toss.  If a serve falls short and into the net, the server has usually tossed the ball too far in front of him/herself or not high enough.  If a serve goes long, the server has usually tossed the ball too far behind him/herself or too high.  Try practicing the service motion and toss without a racquet.  Then, when you practice serving with a racquet, try adjusting your toss when you miss either short or long.
1158415
i thought it was used in tennis when you play one vs two.... i could be wrong though
531815
Irregardless\n\nHundreds more at http://www.wsu.edu/~brians/errors/errors.html#errors
1160190
Yellow = warning (2 = red card)\n\nRed = sent off\n\nIn tournaments if you get more than (say) 1 yellow card or a single red card you can be banned for a few matches ... in league matches a certain amount will also lead to a match ban.\n\nIt could also mean "your agent is on the phone with an outrageous deal to wear silly coloured shoes" but that might just be David Beckam.
175675
what the hell does this have to do with tennis?
722527
Tennis scoring history\n\n"A game consists of a sequence of points played with the same player serving, and is won by the first player to have won at least four points and at least two points more than their opponent. The half of the court used for service alternates between sides, beginning with the right-hand half, known as the deuce court, and continuing with the left-hand side, known as the ad court.\n\nAs simple as this scoring appears, the running score of each game is described in a manner peculiar to tennis: scores of zero to three points are described as "love" (or "zero"), "fifteen", "thirty", and "forty", respectively. The origin of this scoring comes from the (quarterly) stations of the clock, where "forty" was, presumably, easier to say than "forty-five." When stating the score, the server's score is stated first. If the server announces the score as "thirty-love," for example, it means that the server has won two points and the receiver none.\n\nIf each player has won three points, the score is described as "deuce" rather than "forty-all". From this point on, whenever the score is tied, it is described as "deuce" regardless of how many points have been played. The player who wins the next point after deuce is said to have the advantage. If the player with advantage loses the next point, the score is again deuce, since the score is tied. If the player with the advantage wins the next point, that player has won the game, since the player now leads by two points. When the server is the player with the advantage, the score is stated by him before the next point as "advantage in." When the server's opponent has the advantage, the server states the score as "advantage out." These phrases are sometimes shortened to "ad in" and "ad out."\n\nNote that a score of "thirty-all" is functionally equivalent to "deuce", and "forty-thirty" is equivalent to "advantage". These equivalences are not used in a professional match where the umpire states the score. A score of "thirty-all" means that the players have won exactly two points each, while a score of "deuce" means that the players have won at least three points each."
892914
volley- when the ball is hit out of the air\nace- when the opponent does not return your serve\nfault-when you miss your serve 2 times in a row\ndeuce-when the game score is tied 40-40
997188
This is something that doesn't happen very often and so it's not specifically addressed in the ITF rules (I'll include a link below), however a study of the rules will give you bits and pieces of how to decide what should happen. That being said, it does occasionally happen--I've actually seen it--and now you'll know how to handle such a situation. Here's how it works and the philosophy behind the call. The first 'IF' is more than likely the answer to your question, but there could be several variations to that situation that are noteworthy.\n\nIF: the ball bounces in the opponent's court and spins back over the net and bounces in your court the point ends and you win the point. This is because the opponent did not make contact with the ball while it was in his court/his turn to make contact. As soon as the ball bounces in your court the point is dead and you're awarded the point.\n\nIF: the ball bounces in the opponent's court and spins back over the net and the opponent makes contact with the ball before it bounces in your court and correctly hits the ball into play, then play continues normally (see Rule 25b, which states that a player can reach over the net to contact a ball that has spun back over as long as he/she respects Rule 24; and Rule 24 Case 4, which states that a player can make contact with the ball after it has crossed back over the net as long as that player doesn't touch either the net or his opponent's court). \n\nIF: the ball bounces in your opponent's court and spins backwards around a net post, the opponent can hit the ball back into your court without clearing the net (see: Rule 25c).\n\nAnyway, you may want to get a copy of the rulebook to keep in your tennis bag--you never know when it could come in handy. I've included a link to the official ITF rules that the USTA distributes. It's a nice little booklet because it also includes "The Code" and USTA commentaries.\n\nI'd also like to remind everyone that in the second 'IF', the only reason the opponent could reach over the net to make contact was because the ball hit his court and bounced back over the net. This is just an exception to the rule that players can only make contact on their own side of the net. It is NOT the general rule (meaning, in general, players cannot make contact with the ball on their opponent's side of the net).\n\nI hope that helps!!
424961
the reason they show it is two-fold.\n\n#1 is to see how well your team's defense has been playing and how it has affected the game.\n\n#2 has to do with a pitchers ERA. if a run is unearned due to an error the pitcher is not charged for the run.\n\nerrors can have a game changing effect. one error can result in up to 4 runs immediately.  using your example, in basketball the most points a foul can produce is 5(3 pointer made + foul + technical foul)\n4 runs in baseball is the equivalent to 30 points in basketball, if not more. if a foul cost 30 points it would be in EVERY box score
302441
Hey man, the sports-tennis section is not where you should be asking this. You ought to re-ask this question in, lets think, the Yahoo section. Someone may be able to help you there.
478453
The numbers on the balls are only there to help people distinguish their balls from another can of the same brand on an adjacent court. \n\nNumbers on the tennis balls are right under the logo. This is so that when you have, say, 8 adjacent courts and some are using the same brand or type of ball, then there won't be a mix-up of someone's ball sprays onto the other court. Unless, of course, they're both using the same number tennis balls. For instance, if you are using Penn 3s, the court on your left has Penn 1s, and the court to your right has Wilson 3s, you can tell at a glance which court to throw the extra ball to and in turn they can get your lost ball to you easier.
306205
A single-stroke point won by the server who produces a legal service that his/her opponent cannot reach with his/her racket and thus fails to return. By definition, an ace will not occur should the opponent touch the ball in any way, even if the return is illegal.
622659
The unlucky bowler was Robin Peterson of South Africa.The over's six balls went for 4-6-6-4-4-4.This match was played in 2003.