| Details | |
|---|---|
| Duration | February 1 – October 24 |
| Edition | 10th |
| Tournaments | 9 |
| Achievements (singles) | |
| Most tournament titles |  Martina Hingis (4) |
| Most tournament finals | Martina Hingis (5) |
← 1998 2000 → | |
The WTA Tier I events are part of the elite tour for professional women's tennis organised by the WTA called the WTA Tour.[1]
- ^ "1999 Tournaments | WTA Official". Women's Tennis Association. Archived from the original on 2022-09-20.