Leaderboard data updated: 2026-09-15 10:35 UTC

Best Grand Slam Win Percentage in a Single WTA Season

Ashleigh Barty (2022), Billie Jean King (1975), and others share the lead in the single-season standings for grand slam win percentage: 100%. Qualification: at least 7 recorded main-draw singles results matching this metric in one season.

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About this leaderboard

Grand Slam main-draw singles wins as a share of recorded results, including credited walkovers. Each row is one player season; a player can appear more than once.

How to read this table
  • Match Log opens the results behind a player's record with the relevant filters applied.
  • Related columns compare wins and win percentage across all events, Grand Slams, and 1000-level events.

Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

# Player Season Wins Win % GS Wins GS Win % WTA 1000 Wins including documented historical predecessor categories WTA 1000 Win % including documented historical predecessor categories Match Log
1 Ashleigh Barty 2022 11 — 7 100.0% — — Match Log
2 Billie Jean King 1975 23 88.5% 7 100.0% — — Match Log
3 Billie Jean King 1972 89 85.6% 17 100.0% — — Match Log
4 Chris Evert 1976 63 92.7% 13 100.0% — — Match Log
5 Kim Clijsters 2009 13 — 7 100.0% 5 — Match Log
6 Margaret Court 1970 114 95.0% 23 100.0% — — Match Log
7 Monica Seles 1993 17 — 7 100.0% — — Match Log
8 Monica Seles 1991 74 92.5% 21 100.0% 10 90.9% Match Log
9 Serena Williams 2017 8 — 7 100.0% — — Match Log
10 Serena Williams 2002 57 91.9% 21 100.0% 17 89.5% Match Log
11 Steffi Graf 1996 51 92.7% 21 100.0% 18 94.7% Match Log
12 Steffi Graf 1995 48 96.0% 21 100.0% 10 90.9% Match Log
13 Steffi Graf 1988 73 96.1% 28 100.0% — — Match Log
14 Martina Hingis 1997 72 93.5% 27 96.4% 16 94.1% Match Log
15 Monica Seles 1992 70 93.3% 27 96.4% 11 78.6% Match Log
16 Steffi Graf 1993 77 93.9% 27 96.4% 27 90.0% Match Log
17 Steffi Graf 1989 85 97.7% 27 96.4% — — Match Log
18 Serena Williams 2015 50 89.3% 26 96.3% 23 85.2% Match Log
19 Martina Navratilova 1984 78 97.5% 25 96.2% — — Match Log
20 Martina Navratilova 1983 84 98.8% 23 95.8% — — Match Log
21 Margaret Court 1973 105 93.8% 21 95.5% — — Match Log
22 Margaret Court 1969 103 94.5% 21 95.5% — — Match Log
23 Martina Navratilova 1986 84 96.6% 20 95.2% — — Match Log
24 Justine Henin 2007 63 94.0% 19 95.0% 17 89.5% Match Log
25 Serena Williams 2003 36 92.3% 19 95.0% 13 86.7% Match Log
26 Aryna Sabalenka 2024 56 80.0% 18 94.7% 28 80.0% Match Log
27 Chris Evert 1980 66 88.0% 18 94.7% — — Match Log
28 Serena Williams 2010 25 86.2% 18 94.7% 4 — Match Log
29 Venus Williams 2000 41 91.1% 18 94.7% 1 — Match Log
30 Chris Evert 1975 85 92.4% 17 94.4% — — Match Log
31 Evonne Goolagong 1971 94 86.2% 16 94.1% — — Match Log
32 Martina Navratilova 1987 56 87.5% 25 92.6% — — Match Log
33 Martina Navratilova 1985 84 94.4% 25 92.6% — — Match Log
34 Chris Evert 1977 63 94.0% 12 92.3% — — Match Log
35 Jennifer Capriati 2001 56 80.0% 24 92.3% 20 80.0% Match Log
36 Justine Henin 2003 73 86.9% 24 92.3% 22 95.7% Match Log
37 Nancy Richey 1968 56 91.8% 12 92.3% — — Match Log
38 Arantxa Sanchez-Vicario 1994 69 88.5% 23 92.0% 10 76.9% Match Log
39 Serena Williams 2009 50 79.4% 23 92.0% 14 66.7% Match Log
40 Amélie Mauresmo 2006 50 78.1% 22 91.7% 9 69.2% Match Log
41 Chris Evert 1978 49 92.5% 11 91.7% — — Match Log
42 Martina Navratilova 1979 91 88.4% 11 91.7% — — Match Log
43 Martina Navratilova 1978 78 89.7% 11 91.7% — — Match Log
44 Tracy Austin 1979 73 85.9% 11 91.7% — — Match Log
45 Virginia Wade 1977 50 73.5% 11 91.7% — — Match Log
46 Chris Evert 1982 66 91.7% 21 91.3% — — Match Log
47 Iga Swiatek 2022 65 87.8% 21 91.3% 24 92.3% Match Log
48 Serena Williams 2013 77 93.9% 21 91.3% 36 94.7% Match Log
49 Angelique Kerber 2016 60 76.0% 20 90.9% 14 60.9% Match Log
50 Billie Jean King 1971 114 88.4% 10 90.9% — — Match Log
51 Billie Jean King 1968 40 88.9% 20 90.9% — — Match Log
52 Chris Evert 1974 97 93.3% 20 90.9% — — Match Log
53 Emma Raducanu 2021 12 — 10 90.9% — — Match Log
54 Martina Navratilova 1990 52 88.1% 10 90.9% 14 93.3% Match Log
55 Martina Navratilova 1982 85 96.6% 20 90.9% — — Match Log
56 Steffi Graf 1987 70 97.2% 19 90.5% — — Match Log
57 Venus Williams 2001 46 88.5% 19 90.5% 11 84.6% Match Log
58 Billie Jean King 1974 54 87.1% 9 90.0% — — Match Log
59 Chris Evert 1979 81 85.3% 18 90.0% — — Match Log
60 Naomi Osaka 2020 16 — 9 90.0% 4 — Match Log
61 Chris Evert 1986 56 90.3% 17 89.5% — — Match Log
62 Elena Rybakina 2026 49 79.0% 17 89.5% 25 75.8% Match Log
63 Serena Williams 2012 54 90.0% 17 89.5% 15 83.3% Match Log
64 Steffi Graf 1999 34 79.1% 17 89.5% 12 75.0% Match Log
65 Steffi Graf 1992 66 90.4% 17 89.5% 14 93.3% Match Log
66 Justine Henin 2006 57 87.7% 25 89.3% 11 73.3% Match Log
67 Aryna Sabalenka 2025 64 84.2% 24 88.9% 27 81.8% Match Log
68 Billie Jean King 1973 56 82.4% 8 88.9% — — Match Log
69 Chris Evert 1984 68 89.5% 24 88.9% — — Match Log
70 Evonne Goolagong 1976 57 90.5% 16 88.9% — — Match Log
71 Jana Novotna 1998 50 78.1% 16 88.9% 10 66.7% Match Log
72 Kim Clijsters 2011 21 75.0% 8 88.9% 5 — Match Log
73 Serena Williams 2016 38 86.4% 24 88.9% 12 85.7% Match Log
74 Sofia Kenin 2020 23 74.2% 16 88.9% — — Match Log
75 Steffi Graf 1990 72 93.5% 24 88.9% 9 90.0% Match Log
76 Aryna Sabalenka 2023 56 80.0% 23 88.5% 23 76.7% Match Log
77 Chris Evert 1985 77 90.6% 23 88.5% — — Match Log
78 Martina Hingis 1998 60 83.3% 23 88.5% 22 84.6% Match Log
79 Ann Jones 1969 74 83.2% 15 88.2% — — Match Log
80 Arantxa Sanchez-Vicario 1989 47 78.3% 15 88.2% — — Match Log
81 Chris Evert 1983 59 84.3% 15 88.2% — — Match Log
82 Evonne Goolagong 1975 53 79.1% 15 88.2% — — Match Log
83 Chris Evert 1981 64 87.7% 21 87.5% — — Match Log
84 Evonne Goolagong 1980 38 66.7% 7 87.5% — — Match Log
85 Evonne Goolagong 1974 64 85.3% 14 87.5% — — Match Log
86 Iga Swiatek 2025 58 78.4% 21 87.5% 28 75.7% Match Log
87 Lindsay Davenport 1999 58 84.1% 21 87.5% 4 — Match Log
88 Lindsay Davenport 1998 68 82.9% 21 87.5% 18 81.8% Match Log
89 Maria Sharapova 2012 60 84.5% 21 87.5% 25 83.3% Match Log
90 Sloane Stephens 2017 15 65.2% 7 87.5% 8 66.7% Match Log
91 Steffi Graf 1991 64 88.9% 21 87.5% 13 86.7% Match Log
92 Venus Williams 2007 46 82.1% 14 87.5% 9 75.0% Match Log
93 Victoria Azarenka 2012 69 85.2% 21 87.5% 28 84.8% Match Log
94 Virginia Ruzici 1978 59 69.4% 14 87.5% — — Match Log
95 Jennifer Capriati 2002 48 75.0% 20 87.0% 18 75.0% Match Log
96 Maria Sharapova 2006 59 85.5% 20 87.0% 23 88.5% Match Log
97 Kim Clijsters 2010 39 84.8% 13 86.7% 14 87.5% Match Log
98 Kim Clijsters 2005 66 88.0% 13 86.7% 23 92.0% Match Log
99 Monica Seles 1990 55 90.2% 13 86.7% 16 94.1% Match Log
100 Tracy Austin 1981 56 88.9% 13 86.7% — — Match Log
101 Arantxa Sanchez-Vicario 1998 47 73.4% 19 86.4% 12 70.6% Match Log
102 Hana Mandlikova 1981 56 70.0% 19 86.4% — — Match Log
103 Lindsay Davenport 2000 57 80.3% 19 86.4% 16 80.0% Match Log
104 Martina Hingis 1999 70 85.4% 19 86.4% 31 88.6% Match Log
105 Martina Navratilova 1981 90 85.7% 19 86.4% — — Match Log
106 Serena Williams 2008 44 83.0% 19 86.4% 15 88.2% Match Log
107 Serena Williams 2007 34 77.3% 19 86.4% 11 73.3% Match Log
108 Victoria Azarenka 2013 43 78.2% 19 86.4% 18 78.3% Match Log
109 Angelique Kerber 2018 46 73.0% 18 85.7% 15 65.2% Match Log
110 Conchita Martínez 1994 51 78.5% 18 85.7% 10 90.9% Match Log
111 Iga Swiatek 2020 13 — 12 85.7% 1 — Match Log
112 Kim Clijsters 2004 18 81.8% 6 85.7% 2 — Match Log
113 Monica Seles 1996 46 83.6% 18 85.7% 6 — Match Log
114 Monica Seles 1995 11 — 6 85.7% 5 — Match Log
115 Serena Williams 2005 21 70.0% 12 85.7% 4 — Match Log
116 Steffi Graf 1994 58 90.6% 18 85.7% 20 95.2% Match Log
117 Virginia Wade 1968 85 81.7% 6 85.7% — — Match Log
118 Ashleigh Barty 2019 52 81.3% 17 85.0% 22 75.9% Match Log
119 Gabriela Sabatini 1990 49 77.8% 17 85.0% 10 71.4% Match Log
120 Garbiñe Muguruza 2017 46 69.7% 17 85.0% 17 68.0% Match Log
121 Hana Mandlikova 1985 53 80.3% 17 85.0% — — Match Log
122 Hana Mandlikova 1980 76 81.7% 17 85.0% — — Match Log
123 Iga Swiatek 2023 67 85.9% 17 85.0% 28 82.4% Match Log
124 Venus Williams 2008 40 78.4% 17 85.0% 6 60.0% Match Log
125 Betty Stove 1977 46 64.8% 11 84.6% — — Match Log
126 Justine Henin 2004 36 90.0% 11 84.6% 6 — Match Log
127 Kim Clijsters 2003 86 87.8% 22 84.6% 22 84.6% Match Log
128 Margaret Court 1971 56 93.3% 11 84.6% — — Match Log
129 Maria Sharapova 2008 31 83.8% 11 84.6% 15 78.9% Match Log
130 Marion Bartoli 2013 23 60.5% 11 84.6% 6 50.0% Match Log
131 Mima Jausovec 1977 32 60.4% 11 84.6% — — Match Log
132 Serena Williams 1999 38 84.4% 11 84.6% 15 83.3% Match Log
133 Venus Williams 2002 63 87.5% 22 84.6% 4 — Match Log
134 Ana Ivanovic 2008 38 70.4% 16 84.2% 12 63.2% Match Log
135 Maria Sharapova 2014 50 79.4% 16 84.2% 23 79.3% Match Log
136 Martina Navratilova 1989 68 89.5% 16 84.2% — — Match Log
137 Svetlana Kuznetsova 2009 41 71.9% 16 84.2% 15 65.2% Match Log
138 Venus Williams 2005 34 77.3% 16 84.2% 5 — Match Log
139 Arantxa Sanchez-Vicario 1995 47 78.3% 21 84.0% 13 76.5% Match Log
140 Andrea Jaeger 1983 50 73.5% 15 83.3% — — Match Log
141 Barbora Krejcikova 2021 44 73.3% 15 83.3% 13 68.4% Match Log
142 Chris Evert 1973 86 90.5% 15 83.3% — — Match Log
143 Conchita Martínez 1995 57 85.1% 20 83.3% 12 85.7% Match Log
144 Hana Mandlikova 1987 47 78.3% 10 83.3% — — Match Log
145 Helena Sukova 1993 24 61.5% 10 83.3% 2 — Match Log
146 Helena Sukova 1986 69 76.7% 15 83.3% — — Match Log
147 Iga Swiatek 2024 55 85.9% 15 83.3% 31 91.2% Match Log
148 Jelena Ostapenko 2017 43 68.3% 15 83.3% 8 50.0% Match Log
149 Justine Henin 2005 34 87.2% 10 83.3% 19 90.5% Match Log
150 Kerry Reid 1977 45 67.2% 15 83.3% — — Match Log
151 Kim Clijsters 2006 41 77.4% 15 83.3% 5 — Match Log
152 Lindsay Davenport 2005 58 84.1% 20 83.3% 14 82.4% Match Log
153 Maria Sharapova 2004 55 77.5% 15 83.3% 15 65.2% Match Log
154 Martina Hingis 2000 78 88.6% 20 83.3% 31 93.9% Match Log
155 Martina Navratilova 1991 53 85.5% 10 83.3% 4 — Match Log
156 Mary Joe Fernandez 1990 40 80.0% 15 83.3% 1 — Match Log
157 Mirra Andreeva 2026 44 75.9% 15 83.3% 16 66.7% Match Log
158 Naomi Osaka 2021 20 71.4% 10 83.3% 5 — Match Log
159 Olga Morozova 1974 55 80.9% 10 83.3% — — Match Log
160 Serena Williams 2018 18 72.0% 15 83.3% 3 — Match Log
161 Simona Halep 2019 39 69.6% 15 83.3% 18 66.7% Match Log
162 Simona Halep 2018 45 79.0% 15 83.3% 24 75.0% Match Log
163 Tracy Austin 1980 81 89.0% 10 83.3% — — Match Log
164 Venus Williams 2017 38 71.7% 20 83.3% 13 72.2% Match Log
165 Venus Williams 2003 24 82.8% 15 83.3% 2 — Match Log
166 Arantxa Sanchez-Vicario 1996 57 77.0% 19 82.6% 15 75.0% Match Log
167 Arantxa Sanchez-Vicario 1991 56 78.9% 19 82.6% 7 — Match Log
168 Aryna Sabalenka 2026 46 83.6% 19 82.6% 20 83.3% Match Log
169 Dinara Safina 2009 55 77.5% 19 82.6% 19 73.1% Match Log
170 Eugenie Bouchard 2014 39 62.9% 19 82.6% 6 40.0% Match Log
171 Gabriela Sabatini 1992 65 84.4% 19 82.6% 17 89.5% Match Log
172 Gabriela Sabatini 1991 62 84.9% 19 82.6% 24 88.9% Match Log
173 Jelena Jankovic 2008 66 77.7% 19 82.6% 27 79.4% Match Log
174 Maria Sharapova 2005 53 80.3% 19 82.6% 19 79.2% Match Log
175 Anastasia Myskina 2004 49 73.1% 14 82.4% 17 77.3% Match Log
176 Ann Jones 1968 41 80.4% 14 82.4% — — Match Log
177 Ashleigh Barty 2021 43 84.3% 14 82.4% 18 90.0% Match Log
178 Chris Evert 1987 68 85.0% 14 82.4% — — Match Log
179 Coco Gauff 2025 43 72.9% 14 82.4% 27 75.0% Match Log
180 Coco Gauff 2023 51 76.1% 14 82.4% 20 74.1% Match Log
181 Francesca Schiavone 2010 38 64.4% 14 82.4% 13 59.1% Match Log
182 Gabriela Sabatini 1988 65 82.3% 14 82.4% — — Match Log
183 Hana Mandlikova 1986 44 74.6% 14 82.4% — — Match Log
184 Hana Mandlikova 1984 47 81.0% 14 82.4% — — Match Log
185 Jennifer Capriati 2004 29 70.7% 14 82.4% 11 68.8% Match Log
186 Lindsay Davenport 2001 64 86.5% 14 82.4% 14 87.5% Match Log
187 Maria Sharapova 2015 35 77.8% 14 82.4% 11 73.3% Match Log
188 Marketa Vondrousova 2023 36 67.9% 14 82.4% 15 65.2% Match Log
189 Mary Pierce 2000 29 72.5% 14 82.4% 10 71.4% Match Log
190 Monica Seles 1998 42 76.4% 14 82.4% 13 76.5% Match Log
191 Na Li 2011 33 66.0% 14 82.4% 9 52.9% Match Log
192 Naomi Osaka 2018 40 66.7% 14 82.4% 14 66.7% Match Log
193 Petra Kvitova 2011 50 82.0% 14 82.4% 12 63.2% Match Log
194 Serena Williams 2004 39 78.0% 14 82.4% 12 80.0% Match Log
195 Arantxa Sanchez-Vicario 1993 72 83.7% 18 81.8% 16 84.2% Match Log
196 Bianca Andreescu 2019 35 81.4% 9 81.8% 19 90.5% Match Log
197 Billie Jean King 1979 36 73.5% 9 81.8% — — Match Log
198 Chris Evert 1989 27 73.0% 9 81.8% — — Match Log
199 Chris Evert 1988 62 82.7% 18 81.8% — — Match Log
200 Chris Evert 1972 45 84.9% 9 81.8% — — Match Log