Hi guys,
I finally calculated some stats that interested me already few months ago. We all know that one of the many criteria of evaluating player's career is overall W/L percentage. We can find these numbers at wikipedia or at the official page of ATP tour. The best players are ranked as following (ATPWorldTour.com):
1.Novak Djokovic 0.829
2.Bjorn Borg 0.827
3.Rafael Nadal 0.822
4.Jimmy Connors 0.818
5.John McEnroe 0.816
6.Ivan Lendl 0.815
7.Roger Federer 0.815
8.Rod Laver 0.792
9.Andy Murray 0.784
10.Pete Sampras 0.774
11.Boris Becker 0.769
12.Guillermo Vilas 0.765
13.Andre Agassi 0.760
14.Arthur Ashe 0.752
15.Stefan Edberg 0.748
16.John Newcombe 0.743
17.Andy Roddick 0.742
18.Ken Rosewall 0.740
19.Ilie Nastase 0.721
20.Mats Wilander 0.720
21.Manuel Orantes 0.718
22.Jose Luis Clerc 0.717
23.Juan Martin Del Potro 0.712
24.Stan Smith 0.711
25.Tom Okker 0.703
26.Lleyton Hewitt 0.702
27.Vitas Gerulaitis 0.701
These are players with W/L percentage higher than 0.7 (+Kent Carlsson, but he played significantly less matches so I excluded him from my calculations)
I calculated W/L percentage for each of mentioned players after each season. As a career of particular player develops, his W/L is changing. Let's rank them according to their highest W/L ratio calculated for the end of the season (example - Steve Darcis had his best career W/L ratio 0.347 at the end of 2014)
1.Jimmy Connors 0.86501 (after 1979 season)...........his 10th season
2.John McEnroe 0.85676 (1985)........................10
3.Ken Rosewall 0.85246 (1968)*.........................7
4.Ivan Lendl 0.85226 (1989).............................12
5.Rod Laver 0.85050 (1970)*............................10
6.Bjorn Borg 0.84401 (1981)............................11
7.Rafael Nadal 0.83609 (2013)..........................12
8.Novak Djokovic 0.82892 (2016).....................13
9.Ilie Nastase 0.81651 (1973)...........................8
10.Roger Federer 0.81650 (2015)......................18
11.Guillermo Vilas 0.81433 (1978).....................11
12.Boris Becker 0.80720 (1990).........................8
13.Stan Smith 0.79144 (1973)...........................10
14.Mats Wilander 0.78966 (1988).......................9
15.Pete Sampras 0.78897 (1999).......................12
16.Andy Murray 0.78358 (2016)........................12
17.John Newcombe 0.78014 (1974)....................15
18.Stefan Edberg 0.77976 (1991).......................10
19.Tom Okker 0.77600 (1969)...........................6
20.Lleyton Hewitt 0.76983 (2005).......................9
21.Andy Roddick 0.76559 (2005)........................6
22.Andre Agassi 0.76511 (2003)........................18
23.Arthur Ashe 0.76289 (1970)..........................12
24.Manuel Orantes 0.75949 (1976)......................9
25.Jose Luis Clerc 0.75079 (1981).......................5
26.Michael Chang 0.72914 (1997).......................11
27.Vitas Gerulaitis 0.72787 (1982)......................12
28.Yannick Noah 0.72727 (1988).........................12
29.Juan Martin Del Potro 0.71626 (2013)..............8
30.Jim Courier 0.71561 (1995)............................9
31.Thomas Muster 0.71448 (1996).......................13
32.Eddie Dibbs 0.71184 (1979)...........................10
33.Marcelo Rios 0.70545 (1999)...........................7
34.Yevgeni Kafelnikov 0.69970 (1996)...................5
35.Juan Carlos Ferrero 0.69851 (2003).................5
36.Michael Stich 0.69715 (1995)..........................7
37.Andres Gomez 0.69358 (1987)........................9
38.Brian Gottfried 0.69289 (1980)........................11
39.Roscoe Tanner 0.69095 (1981)........................13
40.Jo-Wilfried Tsonga 0.68856 (2013)...................10
41.Raul Ramirez 0.68739 (1978)..........................9
42.Milos Raonic 0.68571 (2017)...........................9
43.Kei Nishikori 0.68107 (2017)...........................11
44.David Ferrer 0.67942 (2015)...........................14
45.David Nalbandian 0.67886 (2010).....................11
46.Gustavo Kuerten 0.67617 (2001).......................6
47.Jose Higueras 0.67446 (1983)..........................12
48.Richard Krajicek 0.66126 (1999).......................9
49.Tomas Berdych 0.65724 (2016)........................14
50.Marin Cilic 0.65512 (2017)..............................13
51.Pat Rafter 0.65209 (2001)...............................11.....his last!
52.Marat Safin 0.64588 (2005).............................9
Then I focused on each player's career and found out, when exactly reached his best W/L ratio.
1.Jimmy Connors 0.86779 (at Las Vegas 1979 before defeat in F)
2.John McEnroe 0.85889 (USO 1985 before defeat in F)
3.Ivan Lendl 0.85480 (Stuttgart Indoors 1990 before defeat in F)
4.Bjorn Borg 0.85246 (USO 1981 before famous final against JMac)
5.Rafael Nadal 0.83851 (Indian Wells 2014 before losing to Dolgopolov in R32)
6.Novak Djokovic 0.83091 (USO 2016 before losing to Wawrinka in F)
7.Ilie Nastase 0.82188 (South Orange 1973 before losing in R16)
8.Roger Federer 0.81930 (Right now!)
9.Guillermo Vilas 0.81672 (Birmingham 1979 before losing in SF)
10.Boris Becker 0.81198 (Brussels 1991 before losing in SF)
11.Stan Smith 0.80363 (after winning 1973 Brussels WCT title)
12.Mats Wilander 0.79748 (after winning 1988 Palermo title)
13.Tom Okker 0.79091 (after reaching final in Hamburg 1969)
14.Pete Sampras 0.79083 (after winning Miami 2000 title)
15.Andy Murray 0.78484 (after Dubai 2017 title)
16.John Newcombe 0.78354 (Manila 1974 before defeat in SF)
17.Stefan Edberg 0.78176 (after reaching final in Stockholm Masters 1991)
18.Lleyton Hewitt 0.77189 (2005 Indian Wells before losing to Federer in F)
19.Arthur Ashe 0.77128 (after winning Paris Masters 1970)
20.Jose Luis Clerc 0.76792 (Indianapolis 1982 before losing in SF)
21.Andy Roddick 0.76750 (2005 Paris Masters before losing in SF)
22.Andre Agassi 0.76636 (after winning Houston 2003 title)
23.Manuel Orantes 0.76190 (Stockholm 1976 before losing in F)
24.Michael Chang 0.73684 (after 1997 Orlando title)
25.Yannick Noah 0.73022 (Miami 1988 before SF loss to Wilander)
26.Vitas Gerulaitis 0.72906 (after winning Johannesburg 1982 title)
27.Jim Courier 0.72336 (Hong Kong 1996 before losing in SF)
28.Thomas Muster 0.71946 (after 1996 Bogota title)
29.Juan Martin Del Potro 0.71698 (Paris 2013 after R16)
30.Eddie Dibbs 0.71388 (North Conway 1980 after SF)
31.Juan Carlos Ferrero 0.71125 (Paris 2003 before R16 loss)
32.Marcelo Rios 0.70896 (Stittgart 1999 before QF loss)
33.Yevgeni Kafelnikov 0.70701 (Vienna 1996 before QF)
34.Michael Stich 0.70276 (French Open 1996 before F loss to Kafelnikov)
35.Jo-Wilfried Tsonga 0.69718 (2009 Shanghai before R16 loss)
36.Andres Gomez 0.69526 (Memphis 1988 before QF loss)
37.Roscoe Tanner 0.69471 (Memphis 1981 before F loss)
38.Brian Gottfried 0.69449 (Stockholm 1980 before R16 loss)
39.Raul Ramirez 0.69298 (Maui 1978 before SF loss)
40.Gustavo Kuerten 0.69149 (USO 2001 before QF loss to Kafelnikov)
41.Milos Raonic 0.69114 (Istanbul 2016 before F loss to Cilic)
42.Kei Nishikori 0.68578 (Basel 2016 before F loss)
43.David Ferrer 0.68224 (Paris 2015 before SF loss)
44.David Nalbandian 0.68145 (Auckland 2011 before F loss)
45.Jose Higueras 0.67808 (Hilversum 1983 before R16 loss)
46.Richard Krajicek 0.66667 (after Miami 1999 title before DC R1 loss)
47.Tomas Berdych 0.66017 (Paris 2015 before QF loss)
48.Pat Rafter 0.65683 (USO 2001 before R16 loss to Sampras)
49.Marin Cilic 0.65611 (Paris 2017 before QF loss)
50.Marat Safin 0.64741 (Indian Wells 2005 before R16 loss)
*- data for Rosewall and Laver may not be totally correct, as most of their careers were before the start of Open Era and ATP rankings.
Also my numbers may not be totally correct, so thanks in advance for corrections and hope these numbers may be helpful.
I finally calculated some stats that interested me already few months ago. We all know that one of the many criteria of evaluating player's career is overall W/L percentage. We can find these numbers at wikipedia or at the official page of ATP tour. The best players are ranked as following (ATPWorldTour.com):
1.Novak Djokovic 0.829
2.Bjorn Borg 0.827
3.Rafael Nadal 0.822
4.Jimmy Connors 0.818
5.John McEnroe 0.816
6.Ivan Lendl 0.815
7.Roger Federer 0.815
8.Rod Laver 0.792
9.Andy Murray 0.784
10.Pete Sampras 0.774
11.Boris Becker 0.769
12.Guillermo Vilas 0.765
13.Andre Agassi 0.760
14.Arthur Ashe 0.752
15.Stefan Edberg 0.748
16.John Newcombe 0.743
17.Andy Roddick 0.742
18.Ken Rosewall 0.740
19.Ilie Nastase 0.721
20.Mats Wilander 0.720
21.Manuel Orantes 0.718
22.Jose Luis Clerc 0.717
23.Juan Martin Del Potro 0.712
24.Stan Smith 0.711
25.Tom Okker 0.703
26.Lleyton Hewitt 0.702
27.Vitas Gerulaitis 0.701
These are players with W/L percentage higher than 0.7 (+Kent Carlsson, but he played significantly less matches so I excluded him from my calculations)
I calculated W/L percentage for each of mentioned players after each season. As a career of particular player develops, his W/L is changing. Let's rank them according to their highest W/L ratio calculated for the end of the season (example - Steve Darcis had his best career W/L ratio 0.347 at the end of 2014)
1.Jimmy Connors 0.86501 (after 1979 season)...........his 10th season
2.John McEnroe 0.85676 (1985)........................10
3.Ken Rosewall 0.85246 (1968)*.........................7
4.Ivan Lendl 0.85226 (1989).............................12
5.Rod Laver 0.85050 (1970)*............................10
6.Bjorn Borg 0.84401 (1981)............................11
7.Rafael Nadal 0.83609 (2013)..........................12
8.Novak Djokovic 0.82892 (2016).....................13
9.Ilie Nastase 0.81651 (1973)...........................8
10.Roger Federer 0.81650 (2015)......................18
11.Guillermo Vilas 0.81433 (1978).....................11
12.Boris Becker 0.80720 (1990).........................8
13.Stan Smith 0.79144 (1973)...........................10
14.Mats Wilander 0.78966 (1988).......................9
15.Pete Sampras 0.78897 (1999).......................12
16.Andy Murray 0.78358 (2016)........................12
17.John Newcombe 0.78014 (1974)....................15
18.Stefan Edberg 0.77976 (1991).......................10
19.Tom Okker 0.77600 (1969)...........................6
20.Lleyton Hewitt 0.76983 (2005).......................9
21.Andy Roddick 0.76559 (2005)........................6
22.Andre Agassi 0.76511 (2003)........................18
23.Arthur Ashe 0.76289 (1970)..........................12
24.Manuel Orantes 0.75949 (1976)......................9
25.Jose Luis Clerc 0.75079 (1981).......................5
26.Michael Chang 0.72914 (1997).......................11
27.Vitas Gerulaitis 0.72787 (1982)......................12
28.Yannick Noah 0.72727 (1988).........................12
29.Juan Martin Del Potro 0.71626 (2013)..............8
30.Jim Courier 0.71561 (1995)............................9
31.Thomas Muster 0.71448 (1996).......................13
32.Eddie Dibbs 0.71184 (1979)...........................10
33.Marcelo Rios 0.70545 (1999)...........................7
34.Yevgeni Kafelnikov 0.69970 (1996)...................5
35.Juan Carlos Ferrero 0.69851 (2003).................5
36.Michael Stich 0.69715 (1995)..........................7
37.Andres Gomez 0.69358 (1987)........................9
38.Brian Gottfried 0.69289 (1980)........................11
39.Roscoe Tanner 0.69095 (1981)........................13
40.Jo-Wilfried Tsonga 0.68856 (2013)...................10
41.Raul Ramirez 0.68739 (1978)..........................9
42.Milos Raonic 0.68571 (2017)...........................9
43.Kei Nishikori 0.68107 (2017)...........................11
44.David Ferrer 0.67942 (2015)...........................14
45.David Nalbandian 0.67886 (2010).....................11
46.Gustavo Kuerten 0.67617 (2001).......................6
47.Jose Higueras 0.67446 (1983)..........................12
48.Richard Krajicek 0.66126 (1999).......................9
49.Tomas Berdych 0.65724 (2016)........................14
50.Marin Cilic 0.65512 (2017)..............................13
51.Pat Rafter 0.65209 (2001)...............................11.....his last!
52.Marat Safin 0.64588 (2005).............................9
Then I focused on each player's career and found out, when exactly reached his best W/L ratio.
1.Jimmy Connors 0.86779 (at Las Vegas 1979 before defeat in F)
2.John McEnroe 0.85889 (USO 1985 before defeat in F)
3.Ivan Lendl 0.85480 (Stuttgart Indoors 1990 before defeat in F)
4.Bjorn Borg 0.85246 (USO 1981 before famous final against JMac)
5.Rafael Nadal 0.83851 (Indian Wells 2014 before losing to Dolgopolov in R32)
6.Novak Djokovic 0.83091 (USO 2016 before losing to Wawrinka in F)
7.Ilie Nastase 0.82188 (South Orange 1973 before losing in R16)
8.Roger Federer 0.81930 (Right now!)
9.Guillermo Vilas 0.81672 (Birmingham 1979 before losing in SF)
10.Boris Becker 0.81198 (Brussels 1991 before losing in SF)
11.Stan Smith 0.80363 (after winning 1973 Brussels WCT title)
12.Mats Wilander 0.79748 (after winning 1988 Palermo title)
13.Tom Okker 0.79091 (after reaching final in Hamburg 1969)
14.Pete Sampras 0.79083 (after winning Miami 2000 title)
15.Andy Murray 0.78484 (after Dubai 2017 title)
16.John Newcombe 0.78354 (Manila 1974 before defeat in SF)
17.Stefan Edberg 0.78176 (after reaching final in Stockholm Masters 1991)
18.Lleyton Hewitt 0.77189 (2005 Indian Wells before losing to Federer in F)
19.Arthur Ashe 0.77128 (after winning Paris Masters 1970)
20.Jose Luis Clerc 0.76792 (Indianapolis 1982 before losing in SF)
21.Andy Roddick 0.76750 (2005 Paris Masters before losing in SF)
22.Andre Agassi 0.76636 (after winning Houston 2003 title)
23.Manuel Orantes 0.76190 (Stockholm 1976 before losing in F)
24.Michael Chang 0.73684 (after 1997 Orlando title)
25.Yannick Noah 0.73022 (Miami 1988 before SF loss to Wilander)
26.Vitas Gerulaitis 0.72906 (after winning Johannesburg 1982 title)
27.Jim Courier 0.72336 (Hong Kong 1996 before losing in SF)
28.Thomas Muster 0.71946 (after 1996 Bogota title)
29.Juan Martin Del Potro 0.71698 (Paris 2013 after R16)
30.Eddie Dibbs 0.71388 (North Conway 1980 after SF)
31.Juan Carlos Ferrero 0.71125 (Paris 2003 before R16 loss)
32.Marcelo Rios 0.70896 (Stittgart 1999 before QF loss)
33.Yevgeni Kafelnikov 0.70701 (Vienna 1996 before QF)
34.Michael Stich 0.70276 (French Open 1996 before F loss to Kafelnikov)
35.Jo-Wilfried Tsonga 0.69718 (2009 Shanghai before R16 loss)
36.Andres Gomez 0.69526 (Memphis 1988 before QF loss)
37.Roscoe Tanner 0.69471 (Memphis 1981 before F loss)
38.Brian Gottfried 0.69449 (Stockholm 1980 before R16 loss)
39.Raul Ramirez 0.69298 (Maui 1978 before SF loss)
40.Gustavo Kuerten 0.69149 (USO 2001 before QF loss to Kafelnikov)
41.Milos Raonic 0.69114 (Istanbul 2016 before F loss to Cilic)
42.Kei Nishikori 0.68578 (Basel 2016 before F loss)
43.David Ferrer 0.68224 (Paris 2015 before SF loss)
44.David Nalbandian 0.68145 (Auckland 2011 before F loss)
45.Jose Higueras 0.67808 (Hilversum 1983 before R16 loss)
46.Richard Krajicek 0.66667 (after Miami 1999 title before DC R1 loss)
47.Tomas Berdych 0.66017 (Paris 2015 before QF loss)
48.Pat Rafter 0.65683 (USO 2001 before R16 loss to Sampras)
49.Marin Cilic 0.65611 (Paris 2017 before QF loss)
50.Marat Safin 0.64741 (Indian Wells 2005 before R16 loss)
*- data for Rosewall and Laver may not be totally correct, as most of their careers were before the start of Open Era and ATP rankings.
Also my numbers may not be totally correct, so thanks in advance for corrections and hope these numbers may be helpful.