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Chess ELO rating system adapted to men’s tennis. From RafaFan. Thanks.

Posted by tennisplanet on June 20, 2010

RAFAFAN

Chess ELO rating system adapted to men’s tennis

In chess player strength is calculated by the ELO equation which is used by FIDE organization.
Arpad Elo a former USCF chess player and American physics professor introduced this statistical method which calculates the relative skill level in two player games. – This rating system has been adapted by some tennis freaks (wuornos & leapfrog) to compare all time greats in tennis! WOW!
For more information on the statistical ELO approach check out wikipedia (searching for “chess elo”).
The outcome (peak rating) for tennis greats so far is shown in the list below:

1 Roger,Federer,SUI 2007.7 2890.2
2 John,McEnroe,USA 1985.3 2835.6
3 Ivan,Lendl,USA 1990.1 2814.3
4 Rafael,Nadal,ESP 2009.4 2799.6
5 Bjorn,Borg,SWE 1980.5 2771.4
6 Jimmy,Connors,USA 1980.1 2665.1
7 Novak,Djokovic,SRB 2009.9 2619.4
8 Pete,Sampras,USA 1997.2 2609.6
9 Andy,Murray,GBR 2010.1 2584.2
10 Rod,Laver,AUS 1975.2 2567.8
11 Boris,Becker,GER 1991.1 2558.3
12 Andy,Roddick,USA 2009.6 2540.9
13 Stefan,Edberg,SWE 1991.8 2533.0
14 Andre,Agassi,USA 1995.7 2500.5
15 Lleyton,Hewitt,AUS 2005.2 2499.0
16 Guillermo,Vilas,ARG 1979.0 2498.1
17 Nikolay,Davydenko,RUS 2010.1 2485.8
18 Mats,Wilander,SWE 1988.8 2467.7
19 Michael,Chang,USA 1997.3 2416.9
20 Juan_Martin,Del_Potro,ARG 2009.7 2390.9
21 Ilie,Nastase,ROU 1976.9 2382.8
22 David,Nalbandian,ARG 2009.1 2369.4
23 Arthur,Ashe,USA 1976.2 2366.4
24 Fernando,Gonzalez,CHI 2009.7 2365.5
25 Thomas,Muster,AUT 1997.2 2351.0
26 Gustavo,Kuerten,BRA 2001.7 2341.3
27 Jim,Courier,USA 1993.5 2339.1
28 Robin,Soderling,SWE 2010.1 2336.3
29 Vitas,Gerulaitis,USA 1980.5 2334.7
30 Brian,Gottfried,USA 1978.3 2330.1
31 Goran,Ivanisevic,CRO 1997.2 2328.8
32 Jo-Wilfried,Tsonga,FRA 2010.1 2322.9
33 Ivan,Ljubicic,CRO 2007.2 2311.0
34 Carlos,Moya,ESP 2004.5 2309.9
35 Guillermo,Canas,ARG 2007.3 2309.9
36 David,Ferrer,ESP 2008.5 2302.3
37 Fernando,Verdasco,ESP 2010.1 2301.7
38 Juan_Carlos,Ferrero,ESP 2003.8 2301.6
39 Eddie,Dibbs,USA 1978.6 2300.2
40 James,Blake,USA 2008.3 2300.0

Let’s compare the list with the highest achieved ratings in chess:

1. Kasparov, Gary……………… g RUS 2851 2851
2. Anand, Viswanathan………….. g IND 2771 2769
3. Kramnik, Vladimir…………… g RUS 2760 2758
4. Shirov, Alexei……………… g ESP 2734 2751
5. Morozevich, Alexander……….. g RUS 2758 2748
6. Leko, Peter………………… g HUN 2701 2725
7. Adams, Michael……………… g ENG 2708 2715
8. Ivanchuk, Vassily…………… g UKR 2702 2709
9. Bareev, Evgeny……………… g RUS 2698 2709
10. Topalov, Veselin……………. g BUL 2690 2702

It’s not that surprising that Federer is on the top. More surprising is pistol Pete’s #8 position.
I’m aware that the elo system is just one more way of comparison. What can we learn from this? You can pull out as many comparison approaches as you want Roger Federer results on top. Geeeezzz!

Dear Banti, TP has no room left for tomato cans! LOL! ;-)

Btw Nalby is ranked #22 and here is the rest of the pack:

41 Michael,Stich,GER 1995.6 2294.7
42 Guillermo,Coria,ARG 2005.6 2290.3
43 Patrick,Rafter,AUS 2001.7 2287.0
44 John,Newcombe,AUS 1975.0 2285.1
45 Tommy,Haas,GER 2007.2 2277.5
46 Jose-Luis,Clerc,ARG 1982.6 2272.5
47 Todd,Martin,USA 1999.3 2272.1
48 Gene,Mayer,USA 1983.3 2270.5
49 Tommy,Robredo,ESP 2009.4 2268.7
50 Radek,Stepanek,CZE 2010.0 2261.4
51 Manuel,Orantes,ESP 1977.8 2261.3
52 Yannick,Noah,FRA 1987.2 2260.7
53 Harold,Solomon,USA 1980.8 2254.4
54 Stan,Smith,USA 1973.4 2254.4
55 Yevgeny,Kafelnikov,RUS 1999.1 2254.3
56 Richard,Krajicek,NED 1999.2 2251.1
57 Marin,Cilic,CRO 2010.1 2250.7
58 Ken,Rosewall,AUS 1975.6 2248.2
59 Tim,Henman,GBR 2002.3 2239.6
60 Sergi,Bruguera,ESP 1994.6 2238.7
61 Tomas,Berdych,CZE 2010.0 2237.0
62 Marcelo,Rios,CHI 1999.4 2236.6
63 Tom,Okker,NED 1974.2 2235.5
64 Marat,Safin,RUS 2005.2 2234.4
65 Brad,Gilbert,USA 1989.8 2230.6
66 Mario,Ancic,CRO 2009.2 2226.6
67 Gael,Monfils,FRA 2010.1 2224.1
68 Alex,Corretja,ESP 2001.6 2221.7
69 Roscoe,Tanner,USA 1979.7 2221.0
70 Andres,Gomez,ECU 1986.6 2215.9
71 Marcos,Baghdatis,CYP 2010.1 2215.4
72 Raul,Ramirez,MEX 1978.5 2209.4
73 Gaston,Gaudio,ARG 2005.6 2208.4
74 Mikhail,Youzhny,RUS 2010.1 2205.4
75 Petr,Korda,CZE 1998.1 2202.0
76 Jose,Higueras,ESP 1983.5 2200.4
77 Richard,Gasquet,FRA 2010.1 2195.2
78 Gilles,Simon,FRA 2009.9 2194.9
79 Thomas,Enqvist,SWE 2000.8 2185.4
80 Wayne,Ferreira,RSA 1996.7 2178.6
81 Miloslav,Mecir_Sr.,SVK 1988.7 2176.5
82 Stanislas,Wawrinka,SUI 2010.1 2175.8
83 Greg,Rusedski,GBR 1999.8 2172.7
84 Joakim,Nystrom,SWE 1986.4 2163.6
85 Nicolas,Kiefer,GER 2008.6 2151.5
86 Eliot,Teltscher,USA 1982.1 2151.4
87 Kent,Carlsson,SWE 1989.3 2150.2
88 Wojtek,Fibak,POL 1980.6 2148.7
89 Juan,Monaco,ARG 2010.2 2142.5
90 Sebastien,Grosjean,FRA 2003.5 2141.0
91 Magnus,Norman,SWE 2000.8 2135.4
92 Philipp,Kohlschreiber,GER 2009.5 2134.9
93 Guy,Forget,FRA 1992.9 2133.6
94 Tomas,Smid,CZE 1984.3 2132.8
95 Jiri,Novak,CZE 2004.8 2132.3
96 Tim,Mayotte,USA 1988.8 2127.6
97 Anders,Jarryd,SWE 1988.2 2126.6
98 Thomas,Johansson,SWE 2006.1 2124.1
99 Dmitry,Tursunov,RUS 2008.8 2123.7
100 Mark,Philippoussis,AUS 2001.2 2123.6

Let’s hope this post is not ending behind the scene… then probably I could come up with more details? Huh?

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12 Responses to “Chess ELO rating system adapted to men’s tennis. From RafaFan. Thanks.”

  1. O said

    Interesting, Rafafan! From the result list, I see Djokovic, Pete and Murray have similar strength. If Djokovic and Murray do not win quite a bit more, the result may argue that Pete played in a chocolate era…

    • RafaFan said

      CHOCOLATE ERA! LOL! This is a good point O! I’ll do some statistical calculations with the top 100’s. I’ll compare the decades and post the results in a new “Wanna post” thread! :-) Maybe with the title: “A Statistical Chocolate Era Proof”! ;-) I’m quite curious whether a statistical difference can be proven! At least I hope for a wall of fame listing! LOL. I’m not kidding: The result is based on true data and proven mathematical relationships! Yeah! ;-) You know I’m sick of lame arguments!!! ;-)

  2. Blake said

    ….what?

  3. Jenny said

    I don’t agree with some of these standings, but to be fair, I haven’t had time so far to check out Chess ELO on Wiki, but interesting, thanks RafaFan.

  4. Kitty said

    The ELO of ches players is not correct. I know anand,kramnik,topalov,carlsen all have career high ratings above 2800
    Fed rating close to 2900…wooow!!!!!!

    • RafaFan said

      Kitty, thanks for your comment. The ranking for May of this year is:
      Carlsen 2813
      Topalow 2812
      Kramnik 2790
      Anand 2789
      Aronjan 2783
      Məmmədyarov 2763
      Grischtschuk 2760
      Wang Yue 2752
      Pawel Eljanow 2751
      Bobby Fischers best rating was 2785.

  5. Somebody Else said

    I’m not sure what any of this has to do with the Electric Light Orchestra.

  6. M said

    Most interesting. I always thought tennis was chess with (well-sculpted) muscles. :-)

    Thanks for this, RafaFan.

    • UM17 said

      Don’t you think each point in tennis is like a mini chess game? Cuz each point is a discrete entity, there’s no break in play between moves in chess, it just continues. I mean I see how a whole match could be like a chess game too, with the whole mental aspect, and how tides can turn…

      Just musing, the answer doesn’t really matter to me. :)

  7. Max said

    I’m just curious, where did you get the match database to run this? I just saw a link to it from a message board and thought it was totally cool, maybe a regular reader would already know the answer (do you run a site that keeps track of this, or is there some source you bought it from or what)

    Also, does the system really work for comparing between generations? According to the internet, Elo can experience ratings inflation or deflation over time (http://en.wikipedia.org/wiki/Elo_rating_system#Ratings_inflation_and_deflation) depending on the characteristics of what ratings people start playing at or retire at or suchlike. Is this really accurate for comparisons between eras?

    • RafaFan said

      Max, thanks for your comment. The ELO calculation was done by “wuornos” and “leapfrog”. I found their results on another blog. I do not know the name of their source database. It could be “Tennis Navigator”, “OnTour” or even the stevegtennis site. I’m too busy to run a site that keeps track of the results.
      I don’t think that inflation/deflation can be proven. In your Wikipedia link they say that the ELO rating for chess players rose from 2644 in July 2000 to 2689 in January 2010. I don’t think that 45 pts are enough for let’s say a P=0.99 (=highly significant). For the tennis elo’s I’ll do a a proper t-test (between the eras) and calculate Spearman’s rank correlation coefficient.

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