Hamburg - High-flying Serb Jelena Jankovic tops the women's tennis rankings issued on Monday by the WTA and is already assured of staying there until next year.

Jankovic has 4,555 points and, according to a WTA statement on Saturday, has clinched the prestigious year-ending number one position for the first time in her career as well.

Russian Dinara Safina ranks second with 3,752 points and Serena Williams of the United States is third on 3,716 points in an unchanged top 10.

WTA top 10 as of October 27 (previous ranking in parenthesis): <# 1. (1) Jelena Jankovic, Serbia, 4,555 points 2. (2) Dinara Safina, Russia, 3,752 3. (3) Serena Williams, United States, 3,716 4. (4) Ana Ivanovic, Serbia, 3,687 5. (5) Elena Dementieva, Russia, 3,399 6. (6) Maria Sharapova, Russia, 3,040 7. (7) Svetlana Kuznetsova, Russia, 2,726 8. (8) Venus Williams, United States, 2,522 9. (9) Vera Zvonareva, Russia, 2,497 10. (10) Agnieszka Radwanska, Poland, 2,141 <# (dpa)