WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 3. | - |
Hingis Martina | Switzerland | 2816 |
| 58. | - |
Schnyder Patty | Switzerland | 623 |
| 132. | - |
Gagliardi Emmanuelle | Switzerland | 203 |
| 245. | - |
Tricerri Alienor | Switzerland | 76 |
| 355. | - |
Vavrinec Miroslava | Switzerland | 36 |
| 415. | - |
Losey Marylene | Switzerland | 25 |
| 588. | - |
Asensio Diana | Switzerland | 11 |
| 634. | - |
Corazza Sabrina | Switzerland | 9 |
|1-50|
- Betting ranking
| Rezai Aravane | +1590 |
| Laboutkova Aneta | +1463 |
| Gomez Federico Agustin | +1364 |
| Machac Tomas | +1345 |
| Blokhina Alexis | +1313 |
| Krutykh Oleksii | -1559 |
| Hertel Anna | -1474 |
| Fruhvirtova Linda | -1447 |
| Lanca Sara | -1445 |
| Dancu Vlad Andrei | -1440 |
This week's tournaments
| Lower level tournaments | ||||
| Temuco challenger | 23 | |||
| Maia challenger | 22 | |||
| Yokkaichi challenger | 20 | |||
| Manzanillo challenger | 21 | |||
| UTR Pro Tennis Series 3 | 2 | |||
| UTR Pro Tennis Series 6 | 4 | |||
| UTR Pro Tennis Series 8 | 4 | |||
| Buenos Aires WTA | 11 | |||
| Carrara ITF | 24 | |||
| Trnava 8 ITF | 24 | |||
| Selva Gardena ITF | 18 | |||
| Yokohama ITF | 26 | |||
| Lousada 2 ITF | 1 | |||
| Santo Domingo 10 ITF | 15 | |||
| Antalya 35 ITF | 24 | |||
| Monastir 12 ITF | 28 | |||
| Ribeirao Preto ITF | 25 | |||
| Sharm El Sheikh 22 ITF | 24 | |||
| UTR Pro Tennis Series 6 | 7 | |||
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- Head-to-head
- Interesting matches
