| 1 | Justine Henin-Hardenne |  BelgiumNumber 1 rankingStatisticsList of players and titles won, last name alphabetically:
- Kim Clijsters – Sydney, Indian Wells, Rome, 's-Hertogenbosch, Stanford, Los Angeles, Filderstadt, Luxembourg and WTA Tour Championships
- Justine Henin-Hardenne – Dubai, Charleston, Berlin, French Open, San Diego, Toronto, U.S. Open and Zurich
- Anastasia Myskina – Doha, Sarasota, Leipzig and Moscow
- Serena Williams – Australian Open, Paris, Miami and Wimbledon
- Elena Dementieva – Amelia Island, Bali and Shanghai
- Amélie Mauresmo – Warsaw and Philadelphia
- Chanda Rubin – Madrid and Eastbourne
- Magüi Serna – Estoril and Budapest
- Maria Sharapova – Tokyo Japan Open and Quebec City
- Anna Pistolesi – Sopot and Helsinki
- Ai Sugiyama – Scottsdale and Linz
- Jennifer Capriati – New Haven
- Amanda Coetzer – Acapulco
- Eleni Daniilidou – Auckland
- Lindsay Davenport – Tokyo Pan Pacific
- Nathalie Dechy – Gold Coast
- Silvia Farina Elia – Strasbourg
- Rita Grande – Casablanca
- Magdalena Maleeva – Birmingham
- Alicia Molik – Hobart
- Henrieta Nagyová – Pattaya City
- Lisa Raymond – Memphis
- Virginia Ruano Pascual – Tashkent
- Dinara Safina – Palermo
- Meghann Shaughnessy – Canberra
- Paola Suárez – Vienna
- Tamarine Tanasugarn – Hyderabad
- Venus Williams – Antwerp
- Fabiola Zuluaga – Bogotá
- Vera Zvonareva – Bol
The following players won their first title:
- Nathalie Dechy – Gold Coast
- Alicia Molik – Hobart
- Tamarine Tanasugarn – Hyderabad
- Elena Dementieva – Amelia Island
- Vera Zvonareva – Bol
- Maria Sharapova – Tokyo Japan Open
Titles won by nation:
- – 17
- – 11
- – 11
- – 3
- – 3
- – 2
- – 2
- – 2
- – 1
- – 1
- – 1
- – 1
- – 1
- – 1
- – 1
- – 1
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