WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 175. | - |
Kim Eun-Ha | South Korea | 135 |
| 192. | - |
Cho Yoon-Jeong | South Korea | 116 |
| 206. | - |
Park Sung-Hee | South Korea | 104 |
| 219. | - |
Chae Kyung-Yee | South Korea | 93 |
| 350. | - |
Choi Young-Ja | South Korea | 36 |
| 359. | - |
Kim Eun-Sook | South Korea | 35 |
| 436. | - |
Choi Ju-Yeon | South Korea | 23 |
| 436. | - |
Ha Eun-Young | South Korea | 23 |
| 436. | - |
Jeon Mi-Ra | South Korea | 23 |
| 484. | - |
Lee Eun-Jeong | South Korea | 17 |
| 603. | - |
Kim Jin-Hee | South Korea | 10 |
| 608. | - |
Chang Kyung-Mi | South Korea | 10 |
| 645. | - |
Chung Yang-Jin | South Korea | 9 |
|1-50|
- Betting ranking
| Panshina Varvara | +2364 |
| Lee Carol Young Suh | +2133 |
| Bublik Alexander | +1644 |
| Vrancken Peeters Anouck | +1444 |
| Sanchez Ana Sofia | +1425 |
| Seyboth Wild Thiago | -1480 |
| Kirchheimer Strong | -1479 |
| Matuszewski Gabriel | -1466 |
| Campana Lee Gerard | -1448 |
| Daniel Taro | -1410 |
This week's tournaments
| Main tournaments | ||||
| Masters Cup ATP | 4 | |||
| Billie Jean King Cup | 3 | |||
| Lower level tournaments | ||||
| Montevideo challenger | 6 | |||
| Brisbane 4 challenger | 3 | |||
| Champaign challenger | 9 | |||
| Drummondville challenger | 9 | |||
| Kobe challenger | 3 | |||
| Lyon 2 challenger | 2 | |||
| UTR Pro Tennis Series 3 | 31 | |||
| UTR Pro Tennis Series 5 | 6 | |||
| UTR Pro Tennis Series 9 | 16 | |||
| Austin ITF | 6 | |||
| Brisbane 5 ITF | 3 | |||
| Chihuahua ITF | 6 | |||
| Funchal ITF | 5 | |||
| Heraklion 10 ITF | 3 | |||
| Orlando 7 ITF | 4 | |||
| UTR Pro Tennis Series 5 | 3 | |||
| UTR Pro Tennis Series 9 | 13 | |||
| Antalya 33 ITF | 3 | |||
| Clemson ITF | 6 | |||
| Criciuma ITF | 4 | |||
| Hua Hin 6 ITF | 3 | |||
| Monastir 7 ITF | 3 | |||
| Nules ITF | 1 | |||
| Phan Thiet ITF | 2 | |||
| Sharm El Sheikh 21 ITF | 3 | |||
| Solarino 7 ITF | 2 | |||
| UTR Pro Match Series | 68 | |||
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