WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 12. | - |
Sugiyama Ai | Japan | 1864 |
| 49. | - |
Smith Nana | Japan | 704 |
| 61. | - |
Hiraki Rika | Japan | 592 |
| 65. | - |
Yoshida Yuka | Japan | 537 |
| 115. | - |
Saeki Miho | Japan | 239 |
| 187. | - |
Inoue Maiko | Japan | 122 |
| 199. | - |
Inoue Haruka | Japan | 110 |
| 208. | - |
Asagoe Shinobu | Japan | 99 |
| 230. | - |
Nagatomi Keiko | Japan | 85 |
| 234. | - |
Ishida Keiko | Japan | 83 |
| 254. | - |
Hisamatsu Shiho | Japan | 71 |
| 287. | - |
Hotta Tomoe | Japan | 56 |
| 294. | - |
Mochizuki Hiroko | Japan | 53 |
| 323. | - |
Takemura Ryoko | Japan | 45 |
| 325. | - |
Kawamata Riei | Japan | 45 |
| 338. | - |
Obata Saori | Japan | 40 |
| 376. | - |
Fujiwara Rika | Japan | 30 |
| 377. | - |
Tezuka Remi | Japan | 30 |
| 381. | - |
Taguchi Keiko | Japan | 29 |
| 382. | - |
Urabe Nami | Japan | 29 |
| 388. | - |
Kinjo Satomi | Japan | 28 |
| 407. | - |
Takase Ayami | Japan | 26 |
| 409. | - |
Okamoto Seiko | Japan | 26 |
| 440. | - |
Sasano Yoshiko | Japan | 22 |
| 462. | - |
Gunji Akiko | Japan | 20 |
| 465. | - |
Iijima Kumiko | Japan | 20 |
| 469. | - |
Fujii Yuki | Japan | 19 |
| 476. | - |
Kitamura Yumiko | Japan | 18 |
| 476. | - |
Umehara Sachie | Japan | 18 |
| 503. | - |
Arai Maki | Japan | 16 |
| 525. | - |
Yamanaka Mao | Japan | 14 |
| 541. | - |
Kurioka Satoko | Japan | 13 |
| 558. | - |
Aoyama Kaori | Japan | 13 |
| 582. | - |
Tameishi Keiko | Japan | 11 |
| 584. | - |
Nagano Chie | Japan | 11 |
| 622. | - |
Kuki Madoka | Japan | 10 |
| 687. | - |
Katsumi Shizu | Japan | 7 |
|1-50|
- Betting ranking
| Luciano Lavinia | +1372 |
| Vrancken Peeters Anouck | +1222 |
| Hansen Sarafina Olivia | +1001 |
| Bartunkova Nikola | +976 |
| Sanchez Ana Sofia | +915 |
| Kis Balazs Rafael | -1125 |
| Heinzova Izabela | -972 |
| Yoshikawa Yusuke | -867 |
| Moser Nicolas (2002) | -837 |
| Rabin Sol | -796 |
This week's tournaments
| Main tournaments | ||||
| Monte Carlo | 31 | |||
| Houston | 3 | |||
| Bucharest | 4 | |||
| Marrakech | 3 | |||
| Charleston | 3 | |||
| Bogotá WTA | 3 | |||
| Lower level tournaments | ||||
| Menorca challenger | 3 | |||
| Campinas challenger | 4 | |||
| Morelos challenger | 3 | |||
| Barletta challenger | 3 | |||
| UTR Pro Tennis Series | 7 | |||
| UTR Pro Tennis Series 3 | 12 | |||
| UTR Pro Tennis Series 5 | 29 | |||
| Ultimate Tennis Showdown | 4 | |||
| Antalya 3 WTA | 3 | |||
| La Bisbal | 3 | |||
| Bujumbura 2 ITF | 3 | |||
| Nantes ITF | 2 | |||
| Jackson ITF | 3 | |||
| Santa Margherita Di Pula ITF | 3 | |||
| UTR Pro Tennis Series 5 | 29 | |||
| Antalya 13 ITF | 5 | |||
| Heraklion 3 ITF | 3 | |||
| Kashiwa ITF | 1 | |||
| Monastir 29 ITF | 3 | |||
| Sharm El Sheikh 10 ITF | 3 | |||
| UTR Pro Match Series | 30 | |||
| UTR Pro Tennis Series | 4 | |||
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- Tournament search
- Head-to-head
- Interesting matches
