How sure must you be?

Majik

Rookie
How sure must you be when calling balls out? I mean, it seems a little pretentious to say you're 100% sure of anything. Afterall, you're going on your memory of what you thought you saw. It seems there is a slight chance that you're seeing what you want to see. So if we're not talking about 100% certainty, then what is acceptable? When we ask the opponent whether he's "sure" or not, what are we asking him to do but to reevaluate the basis of his decision, did he actually see court when the ball touched the ground, or how the ball came up off the court far from the line, etc.
 

damazing

Rookie
If you are not sure then the ball was in. If you have no doubt, like if you are standing beyond the baseline and the ball bounces past your feet then you can be sure the ball is out.
 
How sure must you be when calling balls out?

As sure as you are of the accuracy of your eyesight. Your eyes are controlled by tiny muscles, it is just as important to develop them as any other aspect of your game, maybe it is the MOST fundamentally important aspect.

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'I mean, it seems a little pretentious to say you're 100% sure of anything.'

Ah, moral relativism comes to Tennis Talk; how sure are you of how to spell your name? 80%, 90%, 99%--do you sometimes spell it wrong?

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'Afterall, you're going on your memory of what you thought you saw. It seems there is a slight chance that you're seeing what you want to see.'

With some people it's a BIG chance--they are called delusional or CHEATERS.

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'So if we're not talking about 100% certainty, then what is acceptable?'

In honest tennis only 100% is acceptable.

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' When we ask the opponent whether he's "sure" or not, what are we asking him to do but to reevaluate the basis of his decision, did he actually see court when the ball touched the ground, or how the ball came up off the court far from the line, etc.'

Tennis is a game of second chances, when we ask "Are you sure?", we are, in a nice way, saying "You are a cheating, thieving liar. I'm giving you one last chance to give me that point before I condemn you to eternal damnation, you dick-hole".


As long as one hair on that ball hit the line, it's GOOD!
 

darkhorse

Semi-Pro
My personal rule is that if I don't immediately call it out, it's in. If I have to stand there and think about for more than a split second, then I can't call the ball out.
 

ProgressoR

Hall of Fame
sometimes on serves, you have to play the ball and then only realise it was long, i often do that on close serve calls.
 

Jim A

Professional
My personal rule is that if I don't immediately call it out, it's in. If I have to stand there and think about for more than a split second, then I can't call the ball out.

I was in this boat yesterday where by the time I realized the ball was out it was far too late to call it...

to the OP at times I would say my opponent was working at 0.01% as there were a few balls hit towards the sideline where I could still see the color of the court between ball/sideline :)
 

jswinf

Professional
I'd say it's like "if you have to ask how much the yacht costs, you can't afford it." (I don't have a yacht.)

If you have to think about whether it was out or not, call it in. Or rather, don't call it anything. Sometimes I've had an opponent make a strangled cry when I hit a shot near the line and I stop playing, thinking it was called out, and they say "no, I called it good." The proper call for good is (silence) and play the ball. If you can't reach it, OK, call it good then.
 

North

Professional
It seems there is a slight chance that you're seeing what you want to see.
I think it is probably more than a slight chance. Just my opinion, but I don't think most people outright cheat on line calls. I think many players have such an emotional/psychological investment in winning that their brains "see" close balls as out. No doubt about the call even occurs because the subconscious stuff going on is so powerful. There is lots of research on the phenomenon in terms of witnesses to a single crime who give wildy different versions of events that have a lot to do with biases, preconceived notions, personal needs, etc. This is why when people who give terrible line calls are asked if they are sure, they almost invariably say yes.

In addition, most of us simply do not see the ball well when both we and it are in motion (which is on nearly every call) - try reading a newspaper while walking or going up or down stairs.





So if we're not talking about 100% certainty, then what is acceptable?

We are talking about 100% certainty. Nothing else is acceptable.
 

jc4.0

Professional
I sleep well

Please, for the love of god, call the ball GOOD if you cannot with 100% certainty call it in. If you hesitate for even a fraction of a second, then the ball is GOOD. If your opponent doesn't give you the same courtesy, don't play with them anymore. If you're playing on clay, you can ask for a second look at the mark - but that's probably not going to resolve it. Half the time, the person can't even identify the correct mark. Just err on the side of your opponent, and you'll sleep well at night (and have more good people to play with).
 

Majik

Rookie
Please, for the love of god, call the ball GOOD if you cannot with 100% certainty call it in. If you hesitate for even a fraction of a second, then the ball is GOOD. If your opponent doesn't give you the same courtesy, don't play with them anymore. If you're playing on clay, you can ask for a second look at the mark - but that's probably not going to resolve it. Half the time, the person can't even identify the correct mark. Just err on the side of your opponent, and you'll sleep well at night (and have more good people to play with).

Is that what the USTA states, "100%" certain? The difficult calls are those that are close and are moving too fast. Very rarely does your eye actually see the instant when the ball touches the ground. Instead you go by trajectory, or when the ball comes up off the ground giving say a 4 inch skid. So in those instances, I think it is pretentious to think you're certain by 100% because you're only going on partial information, trajectory etc. Still you have some certainty that the must have been out even though you did not actually see the crush of the ball as it hit the ground. So for me the question remains.
 

jc4.0

Professional
Is that what the USTA states, "100%" certain? The difficult calls are those that are close and are moving too fast. Very rarely does your eye actually see the instant when the ball touches the ground. Instead you go by trajectory, or when the ball comes up off the ground giving say a 4 inch skid. So in those instances, I think it is pretentious to think you're certain by 100% because you're only going on partial information, trajectory etc. Still you have some certainty that the must have been out even though you did not actually see the crush of the ball as it hit the ground. So for me the question remains.

Yes, the USTA actually says that if the ball is 99.9% out, then it's "in". It's true that sometimes when the ball lands right at your feet it's difficult to see. If you didn't see it, then the ball is "good". If there is even a tiny shred of doubt about the call, give your opponent the benefit of doubt. Wouldn't you want your opponent to do that for you?
 

ProgressoR

Hall of Fame
yeh, i generally only call out when 100% sure its out, sometimes i play on when i am not sure and the opponent stops the point, as he saw it out. Then its a little awkward as i am ready to carry on the rally and he has stopped, so i kind of act like i knew it was out all the time, sometimes i call a feeble "yeh that was just out" and hope he hasnt noticed i am crouched in the ready position bouncing on my feet.
 

Majik

Rookie
Yes, the USTA actually says that if the ball is 99.9% out, then it's "in". It's true that sometimes when the ball lands right at your feet it's difficult to see. If you didn't see it, then the ball is "good". If there is even a tiny shred of doubt about the call, give your opponent the benefit of doubt. Wouldn't you want your opponent to do that for you?

What I don't want is for my opponent calling obvious good balls out, or balls that clearly paint the line out. Apart from that he may call it out if he wishes.
 

West Coast Ace

G.O.A.T.
My personal rule is that if I don't immediately call it out, it's in. If I have to stand there and think about for more than a split second, then I can't call the ball out.
Well said. I have a friend I play with almost every week. He'll occasionally do the 'stare' - bugs me a little - but I think all in all he's pretty 'forgiving' with his calls - as I am - so I don't worry about it.

If you hesitate for even a fraction of a second, then the ball is GOOD. If your opponent doesn't give you the same courtesy, don't play with them anymore.
I agree 100%

Please, for the love of god, ...
And atheists!

What I don't want is for my opponent calling obvious good balls out, or balls that clearly paint the line out.
If he does and
wins either congratulate him on his great hooking skills - or refuse to shake his hand. He might get the message.
 

jc4.0

Professional
New contacts?

What I don't want is for my opponent calling obvious good balls out, or balls that clearly paint the line out. Apart from that he may call it out if he wishes.

Y'know this is what we all wish, that our opponents could see the calls as well as we do. I think we've all endured having a clear service ace called wide, even when it cleaned the line... but I say, just play on, and call your side of the court as well as you can. Some people need better eyes, or better attitudes. Don't ever be one of them!
 

raiden031

Legend
If you have any doubt, then its good. Thats not a difficult way to assess the situation. If you have to think more than this and are still calling it out, consider yourself a line hooker.

I'd say it's like "if you have to ask how much the yacht costs, you can't afford it." (I don't have a yacht.)

Sorry but this is a terrible analogy. I want to know what everything I buy costs, doesn't mean I can't afford it. BTW, I can't afford a yacht, but thats irrelevant.
 
Is that what the USTA states, "100%" certain?

The code says if there is ANY doubt, you award the point to your opponent.

I play on my club's challenge court a lot and use it for practice to improve my technique and prepare for tournaments. I'll be serving in doubles and I can see my first serve long. I can see the gap between the service line and the ball by inches. The returner isn't sure and is looking at his partner for help. His partner right on the line is looking dumbfounded. I know my serve was long and I just go into my service motion for a second serve. I made the call for them, relieving them of the responsibility.

For me it's practice and just not worth the hassle of convening a meeting at the net to discuss it. I just want to get on with it. If it were a tournament, I would "play the call",--my opponent's call. I have good eyesight from playing for years. Some people don't have good eyesight--drinking doesn't help one's eyesight.
 
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Delano

Rookie
Is that what the USTA states, "100%" certain? The difficult calls are those that are close and are moving too fast. Very rarely does your eye actually see the instant when the ball touches the ground. Instead you go by trajectory, or when the ball comes up off the ground giving say a 4 inch skid. So in those instances, I think it is pretentious to think you're certain by 100% because you're only going on partial information, trajectory etc. Still you have some certainty that the must have been out even though you did not actually see the crush of the ball as it hit the ground. So for me the question remains.

I'm going to agree with the majority of the comments here - there *is* certainty in this situation: you must call the ball good. I agree that the question remains on whether the ball was actually in or out, but no question remains on how you should call it.
 

Majik

Rookie
Is it legal to put baby power on the edges so you can actually see the mark if it's out? It would not take much, perhaps normal dust accumulation would also work.

Sometimes it take a second to process the information before you feel sure it was out. First glance it seems in, but then you remember actually seeing a sliver of court in front of the ball and you realize it was out. It's not an instant process, but it should not take more than a second.
 

Gemini

Hall of Fame
When I make an out call, I'm 100% sure that it was out as I saw it. There is the occasion when I'll call out and then change the call to in and give the point to my opponent as initially I "saw" the ball as being out but then realized it to actually have touched the line.
 

mtommer

Hall of Fame
Just try to be honest and call what you think you see. That's all anyone can ask or expect if you ask me.
 

bluetrain4

G.O.A.T.
I'd say you have to be almost certain. In everday play, I call pretty liberally in favor of my opponent, even being told sometimes that I played out balls.

In tournament play, I call a little bit tighter, but my standard is "did I honestly believe it was out." I know that a ball that lands super close to the line can be a fraction in or a fraction out. It's almost a gut instinct (and years of having called my own balls and looking at similar shots over and over again) as to how I call it. I'm sure there are a few times when I honestly thought it was out, but it may have been in by a hair. I'm not trying to cheat anyone. I'm not saying, "it could have been in or out, so I'm going to call it out." I'm saying "I genuinely believed it to be out, there was something about it that distinguished it from balls that are just a fraction in," so I call it out.

IMO, the call has to come almost immediately. On non-clay courts, you can't really pause and then call it out. And, we've all wanted to. We've all had those calls where you kinda of feel that it was out, really think it was out, but just didn't get that good look or that automatic feeling. So, you groan to yourself and indicate to your opponent that it was in.

And, for me, balls that land parallel to me on the side lines are a really tough call. If I'm at the baseline and the ball hits the sidelines somewhere ahead of me, then it's fairly easy, but when it's straight to the side of me, it's a tough call. In normal play, when I'm playing against guys I know and generally trust as honest players, if I call that shot out, and I get a bad look, I'll just ask them what they thought and change the call.

Being a good line-caller takes honesty, focus, and experience. Everyone will make mistakes.
 

Majik

Rookie
Being a good line-caller takes honesty, focus, and experience. Everyone will make mistakes.

I'm wondering if there is a technique to get your eyes to synchronize with the ball touching the ground. I mean most times it's just a wash and all you see is a trace going by and another trace after it bounces. You go by where the angle of the two traces must have touched the court. But occasionally, your eye is in sych with the ball touching the ground and you can actually get a mental picture of the ball crushing against the court so that you can see court between the ball and the line. Maybe there's a way to synchronize your eyes with the ball touching the ground. Does anyone know?
 

blakesq

Hall of Fame
Majik,

I thought the same thing a few months ago. How can anyone be 100% sure about ANYTHING. But, as someone pointed out to me, the code is clear, you must be sure. If you see the ball bounce in the center of the court, then, I think you can consider that you saw it "in" with 100% certainty. If you see the ball bounce near the outside of the baseline, you must have the same type of certainity to call it "out".

How sure must you be when calling balls out? I mean, it seems a little pretentious to say you're 100% sure of anything. Afterall, you're going on your memory of what you thought you saw. It seems there is a slight chance that you're seeing what you want to see. So if we're not talking about 100% certainty, then what is acceptable? When we ask the opponent whether he's "sure" or not, what are we asking him to do but to reevaluate the basis of his decision, did he actually see court when the ball touched the ground, or how the ball came up off the court far from the line, etc.
 

LuckyR

Legend
How sure must you be when calling balls out? I mean, it seems a little pretentious to say you're 100% sure of anything. Afterall, you're going on your memory of what you thought you saw. It seems there is a slight chance that you're seeing what you want to see. So if we're not talking about 100% certainty, then what is acceptable? When we ask the opponent whether he's "sure" or not, what are we asking him to do but to reevaluate the basis of his decision, did he actually see court when the ball touched the ground, or how the ball came up off the court far from the line, etc.


IMO the issue is not the player's "certainty" of where they saw the ball land, it is in the myth that you can even see where the ball lands. Ever since HawkEye showed all of us that 99% "out", is "in" I don't even look at the ball anymore. I look for the space between the ball and the line, if I don't see it the ball is "in" and if I do (whether immediately or a little late) the ball is 100% "out".
 
I'm wondering if there is a technique to get your eyes to synchronize with the ball touching the ground.


There are many programs and methods to improve vision. You could spend much time or your whole life devoted to the topic. I've read books by a Dr. Michael Kaplan, a renowned Vision/vision doctor. There are video training tapes and yoga for the eyes. There are special vision therapists that can teach you how to improve your vision with eye exercises.

If you google eye exercises, I'm sure you will find a plethora of programs, tools etc., I've delved into many of them. In the end, I feel for me, playing TENNIS is the BEST eye exercise! Trying to give the best call I can, and erring on the side of my opponent, if I'm not sure, (unless he's a complete a-hole), keeps my vision sharp and healthy.
 

HunterST

Hall of Fame
Is that what the USTA states, "100%" certain? The difficult calls are those that are close and are moving too fast. Very rarely does your eye actually see the instant when the ball touches the ground. Instead you go by trajectory, or when the ball comes up off the ground giving say a 4 inch skid. So in those instances, I think it is pretentious to think you're certain by 100% because you're only going on partial information, trajectory etc. Still you have some certainty that the must have been out even though you did not actually see the crush of the ball as it hit the ground. So for me the question remains.

You're still not understanding. In the situation you're describing, THE BALL IS IN!!! You have to be absolutely 100% positive that there was blue space between where the ball landed and the line.

IF you're in a situation where the balls are going so fast and you have to guess based on the trajectory, guess what. It's in.

Nothing makes me angrier than when someone says "ooh I think that was out."
 

sureshs

Bionic Poster
For balls coming at a low angle to the ground, players often don't see the ball, but extrapolate the trajectory. That extrapolation is often wrong. They call it in when it is out.

You see the same thing for heavily topspin balls. Many club players call it out even though the spin brought it in.

So many people don't see the actual bounce, but do a mental dead reckoning.
 

Majik

Rookie
There are many programs and methods to improve vision. You could spend much time or your whole life devoted to the topic. I've read books by a Dr. Michael Kaplan, a renowned Vision/vision doctor. There are video training tapes and yoga for the eyes. There are special vision therapists that can teach you how to improve your vision with eye exercises.

If you google eye exercises, I'm sure you will find a plethora of programs, tools etc., I've delved into many of them. In the end, I feel for me, playing TENNIS is the BEST eye exercise! Trying to give the best call I can, and erring on the side of my opponent, if I'm not sure, (unless he's a complete a-hole), keeps my vision sharp and healthy.

I was thinking something like throw a hand or nod your head at the instant the ball lands, like you're about to grab the ball at that instant. I'm wondering if this may sync your eye up with the actual bounce. Is this a technique from our preditory instincts?
 
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