K****D 发帖数: 30533 | 1 Currently:
Nadal is
#38 in aces
#5 in 1st serve%
#21 in 1st serve points won%
#1 in 2nd serve points won%
#3 in service games won%
#1 in break points saved%
#7 in points won% returning 1st serve
#1 in points won% returning 2nd serve
#2 in break points converted%
#1 in return games won% |
t****7 发帖数: 11132 | |
a*****3 发帖数: 10373 | 3 1. what is different between 1st serve% and 1st serve points won%?
2. why is there no 2nd serve%?
【在 K****D 的大作中提到】 : Currently: : Nadal is : #38 in aces : #5 in 1st serve% : #21 in 1st serve points won% : #1 in 2nd serve points won% : #3 in service games won% : #1 in break points saved% : #7 in points won% returning 1st serve : #1 in points won% returning 2nd serve
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y****2 发帖数: 1601 | 4 He probably could not improve much more because he is naturally right handed
but playing left handed. I really wish he can serve bigger so that he can
save some energy in his service games, but it is not easy for him to do that.
【在 t****7 的大作中提到】 : 发球不是一般的差,有很大提升空间.
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y****2 发帖数: 1601 | 5 (1)1st serve % is the % of first serve that goes in, and you can lose the
point still. 1st serve point won % is the % of points won when the first
serve goes in.
(2) most people would be 90 and above for the 2nd serve %, unless double fault like crazy. Therefore it is a useless statistics.
【在 a*****3 的大作中提到】 : 1. what is different between 1st serve% and 1st serve points won%? : 2. why is there no 2nd serve%?
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K****D 发帖数: 30533 | 6 He is No.3 in service games won, just behind Roddick and Karlovic.
He is even better than Federer.
【在 t****7 的大作中提到】 : 发球不是一般的差,有很大提升空间.
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a*****3 发帖数: 10373 | 7 got it. thanks :)
fault like crazy. Therefore it is a useless statistics.
【在 y****2 的大作中提到】 : (1)1st serve % is the % of first serve that goes in, and you can lose the : point still. 1st serve point won % is the % of points won when the first : serve goes in. : (2) most people would be 90 and above for the 2nd serve %, unless double fault like crazy. Therefore it is a useless statistics.
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y****2 发帖数: 1601 | 8 A lot of Rafa's service games will go to Deuce but not for Roddick and
Karlovic.
【在 K****D 的大作中提到】 : He is No.3 in service games won, just behind Roddick and Karlovic. : He is even better than Federer.
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K****D 发帖数: 30533 | 9 1. 1st serve percentage means how many 1st serves are in;
1st serve points won% means if the 1st serve is in, how much
chance the point is won.
3. 2nd serve% is supposed to be near 100% and there is no
point comparing that.
【在 a*****3 的大作中提到】 : 1. what is different between 1st serve% and 1st serve points won%? : 2. why is there no 2nd serve%?
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y****2 发帖数: 1601 | 10 you bet, brother.
【在 a*****3 的大作中提到】 : got it. thanks :) : : fault like crazy. Therefore it is a useless statistics.
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y****2 发帖数: 1601 | 11 I was thinking whether it would be close to 100%. I actually originally
wrote 99% and above, but remembered sometimes people double fault 3-4 times
for a three set match. If for each service game, you serve 4 times, that is
4*6*3=72 serves (of course only an approximate depend on how many games you
serve for each set), that is 3/72=4%.
【在 K****D 的大作中提到】 : 1. 1st serve percentage means how many 1st serves are in; : 1st serve points won% means if the 1st serve is in, how much : chance the point is won. : 3. 2nd serve% is supposed to be near 100% and there is no : point comparing that.
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B*X 发帖数: 92 | 12 For more numbers, here is a link for your reading pleasure - in case you
have not read this.
http://online.wsj.com/article/SB10001424052748704103904575336984166968328.html?mod=WSJ_LifeStyle_Lifestyle_5
【在 K****D 的大作中提到】 : Currently: : Nadal is : #38 in aces : #5 in 1st serve% : #21 in 1st serve points won% : #1 in 2nd serve points won% : #3 in service games won% : #1 in break points saved% : #7 in points won% returning 1st serve : #1 in points won% returning 2nd serve
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K****D 发帖数: 30533 | 13 Let's do some simple maths.
Nadal has 69% 1st serve in, winning 74% of those.
For the rest 31% 2ns serves, he won 59% of those.
Overall: 69%*74% + 31%*59% = 69% of service points won
Nadal has 70% 1st serve in, winning 79% of those.
For the rest 30% 2ns serves, he won 57% of those.
Overall: 70%*79% + 30%*57% = 72% of service points won
Indeed there is a difference. But Roddick is No.1 in service
games won with 92% while Nadal is just No.3 with 90%. The
two sets of statistics generally agree with
【在 y****2 的大作中提到】 : A lot of Rafa's service games will go to Deuce but not for Roddick and : Karlovic.
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K****D 发帖数: 30533 | 14 My bad, anything above 90% sound near 100% to me. Note I am
an engineer, hehe.
times
is
you
【在 y****2 的大作中提到】 : I was thinking whether it would be close to 100%. I actually originally : wrote 99% and above, but remembered sometimes people double fault 3-4 times : for a three set match. If for each service game, you serve 4 times, that is : 4*6*3=72 serves (of course only an approximate depend on how many games you : serve for each set), that is 3/72=4%.
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y****2 发帖数: 1601 | 15 sure, but you are only talking about % here. My point was Rafa need to work
more for his service game, which means you need to count the actual number
of points but not just the percentage.
【在 K****D 的大作中提到】 : Let's do some simple maths. : Nadal has 69% 1st serve in, winning 74% of those. : For the rest 31% 2ns serves, he won 59% of those. : Overall: 69%*74% + 31%*59% = 69% of service points won : Nadal has 70% 1st serve in, winning 79% of those. : For the rest 30% 2ns serves, he won 57% of those. : Overall: 70%*79% + 30%*57% = 72% of service points won : Indeed there is a difference. But Roddick is No.1 in service : games won with 92% while Nadal is just No.3 with 90%. The : two sets of statistics generally agree with
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y****2 发帖数: 1601 | 16 haha, you are excused. :P
【在 K****D 的大作中提到】 : My bad, anything above 90% sound near 100% to me. Note I am : an engineer, hehe. : : times : is : you
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K****D 发帖数: 30533 | 17 It's true but you also need to notice that deuce games will drag
down the percentage.
Winning by 6 points to 4 (two deuces) is 60%.
Winning by 4 points to 2 (no deuces) is 66%.
In another words these two statistics are not necessarily linearly
correlated but they are highly coupled.
work
【在 y****2 的大作中提到】 : sure, but you are only talking about % here. My point was Rafa need to work : more for his service game, which means you need to count the actual number : of points but not just the percentage.
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y****2 发帖数: 1601 | 18 I thought about that too but was too lazy to think deeper. After all I am
only a biologist. Maths is not my strong suite. This has been enough
braining storming for me today. bow to you 数据 king.
【在 K****D 的大作中提到】 : It's true but you also need to notice that deuce games will drag : down the percentage. : Winning by 6 points to 4 (two deuces) is 60%. : Winning by 4 points to 2 (no deuces) is 66%. : In another words these two statistics are not necessarily linearly : correlated but they are highly coupled. : : work
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h****n 发帖数: 4860 | 19 #1 in break points saved%
#2 in break points converted%
这两个很牛 |
K****D 发帖数: 30533 | 20 hah, I've heard of the author Goodall.
【在 B*X 的大作中提到】 : For more numbers, here is a link for your reading pleasure - in case you : have not read this. : http://online.wsj.com/article/SB10001424052748704103904575336984166968328.html?mod=WSJ_LifeStyle_Lifestyle_5
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K****D 发帖数: 30533 | 21 I like these two more:
#3 in service games won%
#1 in return games won%
hoho.
【在 h****n 的大作中提到】 : #1 in break points saved% : #2 in break points converted% : 这两个很牛
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K****D 发帖数: 30533 | 22 Federer:
#10 in aces
#26 in 1st serve%
#8 in 1st serve points won%
#2 in 2nd serve points won%
#4 in service games won%
#6 in break points saved%
#5 in points won% returning 1st serve
#13 in points won% returning 2nd serve
#40 in break points converted%
#13 in return games won%
【在 K****D 的大作中提到】 : Currently: : Nadal is : #38 in aces : #5 in 1st serve% : #21 in 1st serve points won% : #1 in 2nd serve points won% : #3 in service games won% : #1 in break points saved% : #7 in points won% returning 1st serve : #1 in points won% returning 2nd serve
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y****2 发帖数: 1601 | 23 wow
I am surprised that the #1 in break points converted% is Hewitt. I had
thought it would be your Murray.
【在 K****D 的大作中提到】 : Federer: : #10 in aces : #26 in 1st serve% : #8 in 1st serve points won% : #2 in 2nd serve points won% : #4 in service games won% : #6 in break points saved% : #5 in points won% returning 1st serve : #13 in points won% returning 2nd serve : #40 in break points converted%
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j***b 发帖数: 5901 | 24 How did Fed win all those slams?
【在 K****D 的大作中提到】 : Federer: : #10 in aces : #26 in 1st serve% : #8 in 1st serve points won% : #2 in 2nd serve points won% : #4 in service games won% : #6 in break points saved% : #5 in points won% returning 1st serve : #13 in points won% returning 2nd serve : #40 in break points converted%
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a*****3 发帖数: 10373 | 25 Is this YTD based?
【在 K****D 的大作中提到】 : Currently: : Nadal is : #38 in aces : #5 in 1st serve% : #21 in 1st serve points won% : #1 in 2nd serve points won% : #3 in service games won% : #1 in break points saved% : #7 in points won% returning 1st serve : #1 in points won% returning 2nd serve
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K****D 发帖数: 30533 | 26 These are the statistics of 2010.
#4 in service games won%
#13 in return games won%
This is actually a not-bad combination.
Nadal's #3 and #1 is insane.
【在 j***b 的大作中提到】 : How did Fed win all those slams?
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K****D 发帖数: 30533 | 27 Of course ah.
【在 a*****3 的大作中提到】 : Is this YTD based?
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j***b 发帖数: 5901 | 28 Nadal's data may be biased due to the clay season.
【在 K****D 的大作中提到】 : These are the statistics of 2010. : #4 in service games won% : #13 in return games won% : This is actually a not-bad combination. : Nadal's #3 and #1 is insane.
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K****D 发帖数: 30533 | 29 Murray's numbers are horrible now. But with a full half-year of
hard court competition, his numbers are expected to rise.
Nadal's numbers should drop a little, while Federer's should be
stable or rise a little.
【在 y****2 的大作中提到】 : wow : : I am surprised that the #1 in break points converted% is Hewitt. I had : thought it would be your Murray.
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a*****3 发帖数: 10373 | 30 This is YTD based la. So not surprised.
【在 j***b 的大作中提到】 : How did Fed win all those slams?
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W*********l 发帖数: 624 | 31 his 1st serves are essentially the same as his 2nd serves?
【在 a*****3 的大作中提到】 : 1. what is different between 1st serve% and 1st serve points won%? : 2. why is there no 2nd serve%?
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t****7 发帖数: 11132 | 32 Rafa indeed needs to serve more Aces if he wants to win more on hard court,
even though it's difficult since he is not a naturally left-hand player. But
since he improved his serve already, let's see what is the outcome in USO. |
b*****t 发帖数: 758 | 33 What AK really meant was "Got you."
【在 y****2 的大作中提到】 : you bet, brother.
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