I'd like to see her get to 18 or 19 majors before she hangs her racket up. That would put her in the Navratilova and Evert league - Grand Slam wise - but not dominance wise. (Evert and Martina - are all over Serena in terms of weeks at number 1). Also, I don't think she is in the Graf league. Steffi is just that much better. In her early 40's she played an exhibition against Kim Clisters at Wimbledon - she didn't look all that bad - so at her peak - the current players could forget it.
Here's the stats for all the players in the open era. I updated on some of the stats for current players since I've posted this list quite some time ago. Appologize if there's any error.
IN THE OPEN ERA
Most GS titles
player total
1 Steffi Graf 22
2 Martina Navratilova 18
2 Chris Evert 18
4
Serena Williams 15
5 Margaret Court 11
6 Monica Seles 9
7 Billie Jean King 8
8 Justine Henin 7
8 Evonne Goolagong Cawley 7
8 Venus Williams 7
Most GS finals
Rank Name Total
1 Chris Evert 34 (18 )
2 Martina Navrátilová 32 (18 )
3 Steffi Graf 31 (22)
4
Serena Williams 19 (15)
5 Evonne Goolagong 18 (7)
6 Venus Williams 14 (7)
7 Monica Seles 13 (9)
8 Margaret Court 12 (11)
8 Martina Hingis 12 (5)
8 Billie Jean Moffitt 12 (8 )
Most single titles
Rank Player Singles
1 Martina Navratilova 167
2 Chris Evert 157
3 Steffi Graf 107
4 Margaret Court 92
5 Evonne Goolagong Cawley 68
6 Billie Jean King 67
7 Lindsay Davenport 55
8 Virginia Wade 55
9 Monica Seles 53
10 Hingis,
Serena 45
Most weeks at #1
Rank Player weeks
1 Steffi Graf 377
2 Martina Navratilova 332
3 Chris Evert 260
4 Martina Hingis 209
5 Monica Seles 178
6
Serena Williams 123
7 Justine Henin 117
8 Lindsay Davenport 98
9 Amélie Mauresmo 39
10 Dinara Safina * 26
Consecutive weeks at #1
1 Steffi Graf (1) 186
2 Martina Navratilova (1) 156
3 Chris Evert (1) 113
4 Steffi Graf (2) 94
5 Monica Seles (1) 91
6 Martina Navratilova (2) 90
7 Steffi Graf (3) 87
8 Martina Hingis (1) 80
9 Chris Evert (2) 76
10 Martina Hingis (2) 73
Year end No. 1 players
player year
Steffi Graf 8
Martina Navratilova 7
Chris Evert 5
Lindsay Davenport 4
Justine Henin 3
Martina Hingis 3
Monica Seles 3
Caroline Wozniacki 2
Serena Williams 2
Jelena Jankovic 1
All surface single winning percentage
Rank Player Wins Losses Win %
1 Margaret Court 593 56 91.37
2 Chris Evert 1309 146 89.97
3 Steffi Graf 902 115 88.69
4 Martina Navratilova 1442 219 86.82
5
Serena Williams 549-108 83.56
6 Monica Seles 595 122 82.98
7 Justine Henin 525 115 82.03
8 Billie Jean King 695 155 81.76
9 Evonne Goolagong Cawley 704 165 81.01
Clay court singles career winning percentage
Rank Player Wins Losses Win %
1 Chris Evert 316 20 94.05
2 Steffi Graf 273 30 90.1
3 Justine Henin 130 22 85.83
4 Monica Seles 142 25 85.03
5 Martina Hingis 109 25 81.34
6 Martina Navratilova 202 47 81.12
7 Gabriela Sabatini 196 49 80
8 Maria Sharapova 79 20 79.80
9
Serena Williams 104 29 78.20
10 Venus Williams 143 40 78.14
Hard court singles career winning percentage
Rank Player Wins Losses Win %
1 Steffi Graf 335 36 90.3
2 Chris Evert 304 37 89.15
3 Martina Navratilova 340 48 87.63
4
Serena Williams 333 60 84.72
5 Monica Seles 311 59 84.05
6 Kim Clijsters 323 69 82.4
7 Justine Henin 251 56 81.76
8 Venus Williams 335 80 80.78
9 Lindsay Davenport 469 116 80.17
10 Maria Sharapova 264 66 80.00
Grass court singles career winning percentage
Rank Player Wins Losses Win %
1 Martina Navratilova 305 39 88.66
2
Serena Williams 63 10 86.30
3 Chris Evert 184 25 88.04
4 Venus Williams 74 11 85.39
5 Steffi Graf 85 15 85
6 Maria Sharapova 65 13 83.33
7 Justine Henin 53 11 82.82
8 Jana Novotna 79 21 79
9 Tracy Austin 43 12 78.18
10 Kim Clijsters 56 16 77.78
Carpet court singles career winning percentage
Rank Player Wins Losses Win %
1 Martina Navratilova 516 58 89.9
2 Steffi Graf 189 23 89.2
3 Chris Evert 209 39 84.3
4
Serena Williams 34 7 82.93
5 Martina Hingis 97 23 80.83
6 Kim Clijsters 50 13 79.37
7 Monica Seles 98 26 79.03
8 Lindsay Davenport 93 27 77.5
9 Tracy Austin 85 25 77.27
10 Venus Williams 50 17 74.63
Most singles matches won
Player Wins
1 Martina Navratilova 1442
2 Chris Evert 1309
3 Steffi Graf 902
4 Virginia Wade 839
5 Arantxa Sánchez Vicario 759
6 Lindsay Davenport 753
7 Conchita Martínez 739
8 Evonne Goolagong Cawley[5] 704
9 Billie Jean King 695
10 Gabriela Sabatini 632
Most match winning streak(all surfaces)
Rank Player Matches
1 Martina Navratilova 74
2 Steffi Graf 66
3 Martina Navratilova 58
4 Margaret Court 57
5 Chris Evert 55
6 Martina Navratilova 54
7 Steffi Graf 46
8 Steffi Graf 45
9 Steffi Graf 44
10 Martina Navratilova 41
Most consecutive singles titles
1. 13 - Martina Navratilova (1984)
2. 12 - Margaret Court (1972-1973)
3. 11 - Steffi Graf (1989-1990)
4. 10 - Chris Evert (1974)
5. 9 - Martina Navratilova (1986)
5. 9 - Margaret Court (1970)
7. 8 - Steffi Graf (1988 )
7. 8 - Martina Navratilova (1983)
Best annual singles winning percentage
No Player Year W-L %
1. Martina Navratilova 1983 86-1 98.85
2. Steffi Graf 1989 86-2 97.73
3. Martina Navratilova 1984 78-2 97.50
4. Steffi Graf 1987 75-2 97.40
5. Martina Navratilova 1982 90-3 96.77
6. Martina Navratilova 1986 89-3 96.73
7. Steffi Graf 1988 72-3 96.00
8. Steffi Graf 1995 47-2 95.91
9. Margaret Court 1973 102-5 95.32
10. Chris Evert 1978 56-3 94.92
11. Chris Evert 1977 70-4 94.59
12. Martina Navratilova 1985 84-5 94.38
13 Justine Henin 2007 63-4 94.03
Most consecutive years winning at least one singles title
1. 21 - Martina Navratilova (1974-1994)
2. 18 - Chris Evert (1971-1988 )
3. 14 - Steffi Graf (1986-1999)
4. 11 - Evonne Goolagong Cawley (1970-1980)
4. 11 - Virginia Wade (1968-1978 )
6. 9 - Sandra Cecchini (1984-1992)
6. 9 - Margaret Court (1968-1976)
6. 9 - Lindsay Davenport (1993-2001)
6. 9 - Conchita Martinez (1988-1996)
6. 9 - Arantxa Sanchez Vicario (1988-1996)
Most singles titles won in a year
1. 21 - Margaret Court (1970)
2. 18 - Margaret Court (1969, 1973)
3. 17 - Billie Jean King (1971)
4. 16 - Chris Evert (1974, 1975)
4. 16 - Martina Navratilova (1983)
6. 15 - Evonne Goolagong Cawley (1970)
6. 15 - Martina Navratilova (1982)
8. 14 - Margaret Court (1968 )
8. 14 - Steffi Graf (1989)
8. 14 - Martina Navratilova (1986)
11. 13 - Martina Navratilova (1984)
12. 12 - Chris Evert (1973, 1976)
12. 12 - Evonne Goolagong Cawley (1971)
12. 12 - Martina Navratilova (1985)
15. 11 - Tracy Austin (1980)
15. 11 - Chris Evert (1977)
15. 11 - Steffi Graf (1987, 1988 )
15. 11 - Martina Navratilova (1978, 1979)