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post #31 of 195 (permalink) Old 08-12-2013, 03:02 PM
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Re: The Rankings Database

Weren't several of the Australian Open's boycotted by many top players? It may not have been anywhere near the level of the boycott of Wimbledon 1973, but IMO if the boycotted AO's are counted in the ranking then so should the boycotted Wimbledon.
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post #32 of 195 (permalink) Old 08-12-2013, 03:42 PM
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Re: The Rankings Database

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So, who here agrees that I count Wimbledon 1973, unlike the ATP did officially? The rankings will be a little different, but can we consider this a mistake made by ATP that needs correcting?
I believe they cut it intentionally. Whether they should have is another question.
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post #33 of 195 (permalink) Old 08-12-2013, 03:43 PM
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Re: The Rankings Database

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Originally Posted by Pratik View Post
Weren't several of the Australian Open's boycotted by many top players? It may not have been anywhere near the level of the boycott of Wimbledon 1973, but IMO if the boycotted AO's are counted in the ranking then so should the boycotted Wimbledon.
I don't think it was boycotted, I just don't think it was a priority. Just like noone calls is a boycott if Washington gets a less than impressive entry list.
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post #34 of 195 (permalink) Old 08-12-2013, 03:55 PM Thread Starter
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Re: The Rankings Database

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I believe they cut it intentionally. Whether they should have is another question.
So, that's a vote against counting it, correct?

That's 2-1 for not counting Wimbledon 1973.

Anyone else?
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post #35 of 195 (permalink) Old 08-13-2013, 12:08 AM
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Re: The Rankings Database

I say you count Wimbledon 1973. It should still count. I have it counted in all of my stats pages, and Borg made a QF there, and Kodes deserves the title, regardless of the mug ATP.

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post #36 of 195 (permalink) Old 08-13-2013, 03:18 PM Thread Starter
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Re: The Rankings Database

In the mean time I have managed to recreate 95% of the original system that ran for 1973. With this recreation of their experiment, despite the ATP using decimal points, I have been able to correctly place the entire Top 11 of the YE 1973, which is a lot to say actually. Unfortunately, this development forces me to redo 1970 and 1971 with the more loyal system (stay tuned for the results). This has now become the natural progression from 1970 to 1973:



Notice how strange this "experimental" rankings system looked like. But I think I have the proportions right. All I'm missing is the decimal points, which frankly could have caused these minor differences between players. I see no evidence of a bonus system being applied yet, so I'm going to remove it.

@Johnny and @Pratik, so many players are down in the rankings because ATP didn't count this Grand Slam. Kodes is only one of them.

@Litotes and @Freaky, this seems like a fair course of action and the resulting rankings will be loyal to the official rankings.

2-2.
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post #37 of 195 (permalink) Old 08-15-2013, 11:27 PM
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Re: The Rankings Database

Strange how the ATP decided not to count it. Since we're looking for the true rankings here, I don't think it should be overlooked. I'd say you should count Wimbledon 1973.

I'll just echo the others and say amazing work with the database, mate.
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post #38 of 195 (permalink) Old 08-20-2013, 01:27 PM Thread Starter
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Re: The Rankings Database

Database updated with the official rankings of August 19, 2013.

Thanks for the votes guys. My vote would have fallen against calculating with Wimbledon. So 3-3.

Given the tie, I have decided to make everyone happy. I will do two calculations between Wimbledon 1973-Wimbledon 1974. Both will be displayed here, but the one without Wimbledon will be called CORRECTED OFFICIAL RANKINGS. The one with Wimbledon will be called WIMBLEDON ADDED SIDE-RANKINGS.
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post #39 of 195 (permalink) Old 08-22-2013, 02:31 PM Thread Starter
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Re: The Rankings Database

I have managed to reconstruct the 1973 original rankings system with maximum fidelity possible, given that the error ratio for it was estimated at 43.5%. This system accurately gets the YE Top 10 right for 1973 with minimum differences in points and gets a lot of the other players right as well, but there are major differences to the official, which will be cataloged as inconsistencies in the way ATP calculated points as tournaments were counted differently for different players.

The system has been extended to the period 1970-1973, and 1970-1971, previously available here, have been recalculated. You will notice some differences than before, including the fact that John Newcombe gets to be YE #1 in 1971.

Here are the number 1 streaks I got until the end of 1971:

Quote:
1. Ken Rosewall - 29.04.1968 - 10 weeks
2. Rod Laver - 08.07.1968 - 9 weeks

Ken Rosewall (2) - 09.09.1968 - 21 weeks (31 total)
Rod Laver (2) - 03.02.1969 - 84 weeks (93 total)
Ken Rosewall (3) - 14.09.1970 - 6 weeks (37 total)
Rod Laver (3) - 26.10.1970 - 22 weeks (115 total)
Ken Rosewall (4) - 29.03.1971 - 1 week (38 total)
Rod Laver (4) - 05.04.1971 - 2 weeks (117 total)
Ken Rosewall (5) - 19.04.1971 - 1 week (39 total)
Rod Laver (5) - 26.04.1971 - 1 week (118 total)
Ken Rosewall (6) - 03.05.1971 - 1 week (40 total)
Rod Laver (6) - 10.05.1971 - 1 week (119 total)
Ken Rosewall (7) - 17.05.1971 - 7 weeks (47 total)
Rod Laver (7) - 05.07.1971 - 2 weeks (121 total)
Ken Rosewall (8) - 19.07.1971 - 1 week (48 total)
3. John Newcombe - 26.07.1971 - 7 weeks
4. Stan Smith - 13.09.1971 - 11 weeks

John Newcombe (2)* - 29.11.1971 - 5 weeks (12 total)
1972 and 1973 coming soon.
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post #40 of 195 (permalink) Old 08-22-2013, 02:37 PM
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Re: The Rankings Database

So 121 weeks and two YE#1s for Laver in the Open Era. Great work
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post #41 of 195 (permalink) Old 08-23-2013, 04:25 PM
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Re: The Rankings Database

ATP's "Celebrating 40 years of the ATP Rankings" should link to this thread.
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post #42 of 195 (permalink) Old 08-24-2013, 12:15 PM Thread Starter
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Re: The Rankings Database

Well, thanks to Markus, without whom this project would have been in shambles, once again, 1970-1971 will be redone with the exact (yes, exact!!!) ranking system that was used in 1973. His help has made it possible for me to reconstruct the exact system of 1973, by getting his hands on a document showing a small part of how the first rankings of Aug 23, 1973 were calculated.
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post #43 of 195 (permalink) Old 08-25-2013, 03:55 AM
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Re: The Rankings Database

I can't believe thus is real... What a monstrous work you've done here! It feels just like you give us a time machine to make us travel to those forgotten times. I guess it was the same kind of feeling I got the first time I saw some color footage of WWII on TV! Truly amazing stuff

And by the way, this duel between Laver and Rosewall must have been breathtaking! THAT was a true rivalry!

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post #44 of 195 (permalink) Old 08-25-2013, 10:40 AM Thread Starter
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Re: The Rankings Database

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And by the way, this duel between Laver and Rosewall must have been breathtaking! THAT was a true rivalry!
Yes it was, and it stretched for a bit longer than the beginning of the Open Era.

Now, I want to keep this as precise as possible, a true gateway to those times. So, I apologize for the fact that I had and still have to redo certain periods of time to make it even closer to reality and loyal to the system of that time.
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post #45 of 195 (permalink) Old 08-25-2013, 11:37 AM
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Re: The Rankings Database

Fantastic work as always Slasher.

Much appreciated.
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