The ITF Women's Circuit is the second tier tour for women's professional tennis organised by the International Tennis Federation, and is the tier below the WTA Tour. In 2007, the ITF Women's Circuit included tournaments with prize money ranging from $10,000 to $100,000.
The ITF world champions in 2007 were Justine Henin (senior singles), Cara Black / Liezel Huber (senior doubles) and Urszula Radwańska (combined junior ranking).
Singles titles by nation
This list displays only the top 21 nations in terms of singles titles wins.
References
2007 ITF Women's Circuit Wikipedia(Text) CC BY-SA