WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 116. | - |
Menga Vanessa | Brazil | 232 |
| 166. | - |
Cortez Joana | Brazil | 148 |
| 297. | - |
D'Agostini Miriam | Brazil | 52 |
| 354. | - |
Tiene Carla | Brazil | 36 |
| 489. | - |
Maia Eugenia | Brazil | 17 |
| 501. | - |
Bellizia Nathalia | Brazil | 16 |
| 554. | - |
Hirt Marcelae | Brazil | 13 |
| 589. | - |
Alves Maria-Fernanda | Brazil | 11 |
| 608. | - |
Novaes Ana Paula | Brazil | 10 |
|1-50|
- Betting ranking
| Luciano Lavinia | +1336 |
| Vrancken Peeters Anouck | +1222 |
| Bartunkova Nikola | +976 |
| Eala Alexandra | +884 |
| Kozyreva Maria | +775 |
| Kis Balazs Rafael | -1125 |
| Heinzova Izabela | -972 |
| Yoshikawa Yusuke | -867 |
| Moser Nicolas (2002) | -837 |
| Vagner Josef | -750 |
This week's tournaments
| Main tournaments | ||||
| Miami | 3 | |||
| Miami | 2 | |||
| Lower level tournaments | ||||
| Morelia challenger | 6 | |||
| Neapol challenger | 2 | |||
| Girona challenger | 3 | |||
| Concepcion challenger | 3 | |||
| UTR Pro Tennis Series 3 | 19 | |||
| UTR Pro Tennis Series 5 | 8 | |||
| UTR Pro Tennis Series 6 | 3 | |||
| UTR Pro Tennis Series 9 | 3 | |||
| Antalya 2 WTA | 3 | |||
| Puerto Vallarta | 6 | |||
| Murska Sobota ITF | 3 | |||
| Vacaria 2 ITF | 4 | |||
| Bujumbura ITF | 3 | |||
| Santo Domingo 6 ITF | 5 | |||
| Antalya 12 ITF | 3 | |||
| Terrassa ITF | 1 | |||
| UTR Pro Tennis Series 5 | 14 | |||
| UTR Pro Tennis Series 9 | 2 | |||
| Alaminos-Larnaca 3 ITF | 3 | |||
| Heraklion 2 ITF | 4 | |||
| Monastir 28 ITF | 3 | |||
| Nonthaburi 3 ITF | 3 | |||
| Sharm El Sheikh 9 ITF | 4 | |||
| UTR Pro Match Series | 8 | |||
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