WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 24. | - |
Tarabini Patricia | Argentina | 1201 |
| 26. | - |
Suarez Paola | Argentina | 1130 |
| 31. | - |
Montalvo Laura | Argentina | 974 |
| 44. | - |
Labat Florencia | Argentina | 727 |
| 90. | - |
Gorrochategui Ines | Argentina | 355 |
| 160. | - |
Landa Ma. Fernanda | Argentina | 153 |
| 188. | - |
Ottoboni Romina | Argentina | 120 |
| 212. | - |
Diaz-Oliva Mariana | Argentina | 96 |
| 227. | - |
Fernandez Clarisa | Argentina | 88 |
| 232. | - |
Krauth Erica | Argentina | 85 |
| 248. | - |
Masante Luciana | Argentina | 74 |
| 293. | - |
Krauth Vanesa | Argentina | 53 |
| 296. | - |
Racedo Paula | Argentina | 53 |
| 303. | - |
Arevalo Melisa | Argentina | 51 |
| 307. | - |
Torti Jorgelina | Argentina | 49 |
| 342. | - |
Valenti Sabrina | Argentina | 38 |
| 367. | - |
Contin Celeste | Argentina | 33 |
| 390. | - |
Gussoni Natalia | Argentina | 28 |
| 462. | - |
Aizenberg Geraldine | Argentina | 20 |
| 470. | - |
Gaidano Maria Jose | Argentina | 19 |
| 531. | - |
Cravero Jorgelina | Argentina | 14 |
| 553. | - |
Scalise Evelina | Argentina | 13 |
| 565. | - |
Damario Sabrina | Argentina | 12 |
| 630. | - |
Salvadores Florencia | Argentina | 9 |
| 687. | - |
Alcetegaray Maria Lorena | Argentina | 7 |
| 687. | - |
Basile Florencia | Argentina | 7 |
|1-50|
- Betting ranking
| Panshina Varvara | +2310 |
| Mdlulwa Wozuko | +1924 |
| Lee Carol Young Suh | +1851 |
| Moyano Luciana | +1684 |
| Bublik Alexander | +1611 |
| Hodkin Sean | -1413 |
| Daniel Taro | -1354 |
| Heinzova Izabela | -1309 |
| Andreeva Erika | -1184 |
| Yoshikawa Yusuke | -1092 |
This week's tournaments
| Main tournaments | ||||
| Cincinnati | 32 | |||
| Toronto | 2 | |||
| Cincinnati WTA | 32 | |||
| Montreal WTA | 1 | |||
| Billie Jean King Cup | 8 | |||
| Lower level tournaments | ||||
| Chicago challenger | 10 | |||
| Bonn challenger | 9 | |||
| Cordenons challenger | 10 | |||
| Grodzisk Mazowiecki challenger | 10 | |||
| UTR Pro Tennis Series | 17 | |||
| UTR Pro Tennis Series 3 | 107 | |||
| UTR Pro Tennis Series 5 | 51 | |||
| Landisville 2 ITF | 18 | |||
| Amstetten ITF | 9 | |||
| Koksijde ITF | 8 | |||
| Leipzig ITF | 12 | |||
| Ourense ITF | 7 | |||
| Chacabuco ITF | 12 | |||
| Kursumlijska Banja 16 ITF | 9 | |||
| Roehampton 2 ITF | 12 | |||
| Southaven ITF | 12 | |||
| UTR Pro Tennis Series 5 | 47 | |||
| Astana 14 ITF | 8 | |||
| Bielsko Biala ITF | 12 | |||
| Brasov 3 ITF | 9 | |||
| Hameenlinna ITF | 12 | |||
| Luan 5 ITF | 7 | |||
| Monastir 47 ITF | 12 | |||
| Singapore ITF | 8 | |||
| Slovenske Konjice ITF | 11 | |||
| Tweed Heads ITF | 6 | |||
| UTR Pro Match Series | 132 | |||
| UTR Pro Tennis Series | 62 | |||
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