# WTA Win Percentage by Season – Year-by-Year Leaders (Modern Era)

Source: https://tennis-db.com/wta/leaders/win-pct/year-by-year
Tour: WTA
Era: Modern Era (1990+)

## Leaderboard
| Rank | Player | Season | Wins | Win % | GS Wins | GS Win % | WTA 1000 Wins | WTA 1000 Win % |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | Aryna Sabalenka | 2026 | 31 | 88.6% | 10 | 83.3% | 16 | 88.9% |
| 2 | Aryna Sabalenka | 2025 | 64 | 84.2% | 24 | 88.9% | 27 | 81.8% |
| 3 | Iga Swiatek | 2024 | 50 | 86.2% | 15 | 83.3% | 31 | 91.2% |
| 4 | Iga Swiatek | 2023 | 67 | 85.9% | 17 | 85.0% | 32 | 84.2% |
| 5 | Iga Swiatek | 2022 | 65 | 87.8% | 21 | 91.3% | 25 | 89.3% |
| 6 | Ashleigh Barty | 2021 | 43 | 86.0% | 14 | 82.4% | 18 | 90.0% |
| 7 | Simona Halep | 2020 | 23 | 88.5% | 8 | 80.0% | 9 | - |
| 8 | Bianca Andreescu | 2019 | 35 | 81.4% | 9 | 81.8% | 19 | 90.5% |
| 9 | Simona Halep | 2018 | 45 | 79.0% | 15 | 83.3% | 24 | 75.0% |
| 10 | Elina Svitolina | 2017 | 50 | 76.9% | 12 | 75.0% | 21 | 80.8% |
| 11 | Serena Williams | 2016 | 36 | 87.8% | 24 | 88.9% | 12 | 85.7% |
| 12 | Serena Williams | 2015 | 50 | 89.3% | 26 | 96.3% | 23 | 85.2% |
| 13 | Serena Williams | 2014 | 52 | 83.9% | 13 | 81.3% | 25 | 86.2% |
| 14 | Serena Williams | 2013 | 77 | 93.9% | 21 | 91.3% | 36 | 94.7% |
| 15 | Serena Williams | 2012 | 48 | 88.9% | 17 | 89.5% | 15 | 83.3% |
| 16 | Serena Williams | 2011 | 22 | 84.6% | 9 | 81.8% | 7 | - |
| 17 | Serena Williams | 2010 | 25 | 86.2% | 18 | 94.7% | 4 | - |
| 18 | Serena Williams | 2009 | 50 | 79.4% | 23 | 92.0% | 14 | 66.7% |
| 19 | Maria Sharapova | 2008 | 31 | 83.8% | 11 | 84.6% | 15 | 78.9% |
| 20 | Justine Henin | 2007 | 63 | 94.0% | 19 | 95.0% | 17 | 89.5% |
| 21 | Justine Henin | 2006 | 57 | 87.7% | 25 | 89.3% | 11 | 73.3% |
| 22 | Kim Clijsters | 2005 | 66 | 88.0% | 13 | 86.7% | 23 | 92.0% |
| 23 | Justine Henin | 2004 | 30 | 88.2% | 11 | 84.6% | 6 | - |
| 24 | Serena Williams | 2003 | 36 | 92.3% | 19 | 95.0% | 13 | 86.7% |
| 25 | Serena Williams | 2002 | 57 | 91.9% | 21 | 100.0% | 17 | 89.5% |

Showing top 25 of 37 rows.

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Canonical URL: https://tennis-db.com/wta/leaders/win-pct/year-by-year
Data source: TennisDB (tennis-db.com)