WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 176. | - |
Mesa Mariana | Colombia | 134 |
| 204. | - |
Gutierrez Giana | Colombia | 105 |
| 300. | - |
Zuluaga Fabiola | Colombia | 52 |
| 572. | - |
Castano Catalina | Colombia | 12 |
|1-50|
- Betting ranking
| Luciano Lavinia | +1386 |
| Vrancken Peeters Anouck | +1222 |
| Keys Madison | +826 |
| Kozyreva Maria | +825 |
| Gabric Anna | +769 |
| Kis Balazs Rafael | -1125 |
| Heinzova Izabela | -872 |
| Yoshikawa Yusuke | -867 |
| Moser Nicolas (2002) | -837 |
| Vagner Josef | -700 |
This week's tournaments
| Main tournaments | ||||
| Miami | 35 | |||
| Miami | 26 | |||
| Lower level tournaments | ||||
| Asuncion challenger | 2 | |||
| Merida challenger | 3 | |||
| Murcia challenger | 2 | |||
| Zadar challenger | 3 | |||
| UTR Pro Tennis Series 3 | 15 | |||
| UTR Pro Tennis Series 5 | 13 | |||
| UTR Pro Tennis Series 6 | 16 | |||
| Antalya WTA | 3 | |||
| Luan ITF | 3 | |||
| Maribor ITF | 3 | |||
| Kofu ITF | 3 | |||
| Santo Domingo 5 ITF | 3 | |||
| Vacaria ITF | 3 | |||
| Sabadell ITF | 13 | |||
| Solarino 2 ITF | 3 | |||
| Swan Hill ITF | 3 | |||
| UTR Pro Tennis Series 5 | 14 | |||
| Alaminos-Larnaca 2 ITF | 3 | |||
| Antalya 11 ITF | 3 | |||
| Heraklion ITF | 2 | |||
| Le Havre ITF | 3 | |||
| Monastir 27 ITF | 3 | |||
| Nonthaburi 2 ITF | 3 | |||
| Sharm El Sheikh 8 ITF | 3 | |||
| UTR Pro Match Series | 15 | |||
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