WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 68. | - |
Tanasugarn Tamarine | Thailand | 508 |
| 191. | - |
Wang Shi-Ting | Thailand | 117 |
| 255. | - |
Sangaram Benjamas | Thailand | 71 |
| 583. | - |
Wongkamalasai Orawan | Thailand | 11 |
|1-50|
- Betting ranking
| Branstine Carson | +1222 |
| Bagnis Facundo | +975 |
| Vacherot Valentin | +946 |
| Bouzas Maneiro Jessica | +899 |
| Trungelliti Marco | +882 |
| Krutykh Oleksii | -1062 |
| Bonzi Benjamin | -913 |
| Kolodynska Jana | -822 |
| Guillen Meza Alvaro | -819 |
| Added Dan | -817 |
This week's tournaments
| Main tournaments | ||||
| Madrid | 1 | |||
| Madrid WTA | 2 | |||
| Lower level tournaments | ||||
| Aix en Provence challenger | 2 | |||
| Cagliari challenger | 2 | |||
| Guangzhou challenger | 2 | |||
| Wuxi challenger | 22 | |||
| Porto Alegre challenger | 3 | |||
| UTR Pro Tennis Series 3 | 5 | |||
| UTR Pro Tennis Series 5 | 2 | |||
| Bonita Springs ITF | 3 | |||
| Gifu ITF | 2 | |||
| Lleida | 1 | |||
| Saint-Malo WTA | 2 | |||
| Wiesbaden ITF | 1 | |||
| Anapoima ITF | 3 | |||
| Boca Raton 3 ITF | 3 | |||
| Hammamet 7 ITF | 1 | |||
| Nottingham 7 ITF | 1 | |||
| Santa Margherita Di Pula 6 ITF | 1 | |||
| UTR Pro Tennis Series 5 | 4 | |||
| Yecla ITF | 1 | |||
| Antalya 17 ITF | 1 | |||
| Kursumlijska Banja 3 ITF | 2 | |||
| Monastir 34 ITF | 1 | |||
| Osijek ITF | 1 | |||
| Varberg ITF | 1 | |||
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