WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 51. | - |
Jeyaseelan Sonya | Canada | 671 |
| 103. | - |
Webb Vanessa | Canada | 291 |
| 137. | - |
Kolbovic Renata | Canada | 187 |
| 220. | - |
Drake Maureen | Canada | 91 |
| 273. | - |
Pelletier Marie-Eve | Canada | 62 |
| 431. | - |
Nejedly Jana | Canada | 23 |
| 539. | - |
Soukup Aneta | Canada | 14 |
| 542. | - |
Havlicek Nicole | Canada | 13 |
| 560. | - |
Nejedly Martina | Canada | 13 |
| 669. | - |
Huang Susan | Canada | 8 |
|1-50|
- Betting ranking
| Rezai Aravane | +1590 |
| Laboutkova Aneta | +1374 |
| Gomez Federico Agustin | +1364 |
| Machac Tomas | +1345 |
| Blokhina Alexis | +1313 |
| Krutykh Oleksii | -1559 |
| Fruhvirtova Linda | -1447 |
| Lanca Sara | -1445 |
| Dancu Vlad Andrei | -1440 |
| Ilkel Cem | -1433 |
This week's tournaments
| Main tournaments | ||||
| Davis Cup | 4 | |||
| Lower level tournaments | ||||
| Rovereto challenger | 3 | |||
| Sao Paulo 7 challenger | 3 | |||
| Yokkaichi challenger | 30 | |||
| Yokohama challenger | 2 | |||
| Montemar challenger | 2 | |||
| Puerto Vallarta challenger | 3 | |||
| UTR Pro Tennis Series 3 | 4 | |||
| UTR Pro Tennis Series 6 | 3 | |||
| Charleston 4 | 3 | |||
| Colina WTA | 3 | |||
| Takasaki ITF | 6 | |||
| Carrara ITF | 16 | |||
| Boca Raton 5 ITF | 3 | |||
| Caloundra ITF | 5 | |||
| Trnava 5 ITF | 1 | |||
| Lousada ITF | 2 | |||
| Santo Domingo 10 ITF | 3 | |||
| Alcala de Henares ITF | 2 | |||
| Antalya 50 ITF | 5 | |||
| Cordoba 6 ITF | 3 | |||
| Heraklion 13 ITF | 1 | |||
| Monastir 11 ITF | 1 | |||
| Sharm El Sheikh 21 ITF | 1 | |||
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