WTA and ATP rankings on - 28.12.1998
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 228. | - |
Nola Pavlina | New Zealand | 87 |
| 304. | - |
Stephens Shelley | New Zealand | 50 |
| 316. | - |
Baker Leanne | New Zealand | 47 |
| 344. | - |
Hudson Rewa | New Zealand | 37 |
| 421. | - |
Tippins Niki | New Zealand | 24 |
|1-50|
- Betting ranking
| Cerundolo Juan Manuel | +1575 |
| Guerrieri Andrea | +1180 |
| Mashtakov Mykyta | +1121 |
| Encheva Lidia | +1054 |
| Gallego Juan Ignacio | +1054 |
| Marcinkevica Diana | -1415 |
| Svatikova Laura | -1386 |
| Covato Matteo | -1322 |
| Otegui Juan Bautista | -1287 |
| Garcia-Perez Georgina | -1286 |
This week's tournaments
| Main tournaments | ||||
| US Open | 41 | |||
| US Open | 41 | |||
| Lower level tournaments | ||||
| Zhangjiagang challenger | 16 | |||
| Como challenger | 16 | |||
| Mallorca challenger | 17 | |||
| Porto 2 challenger | 15 | |||
| Plovdiv 3 challenger | 14 | |||
| UTR Pro Tennis Series 3 | 29 | |||
| UTR Pro Tennis Series 5 | 10 | |||
| UTR Pro Tennis Series 9 | 6 | |||
| Tianjin 5 ITF | 15 | |||
| Leiria ITF | 17 | |||
| Saint Palais sur Mer ITF | 9 | |||
| Kursumlijska Banja 17 ITF | 19 | |||
| UTR Pro Tennis Series 5 | 10 | |||
| UTR Pro Tennis Series 9 | 16 | |||
| Badalona ITF | 11 | |||
| Brasov 3 ITF | 12 | |||
| Cap d'Agde ITF | 13 | |||
| Fiano Romano ITF | 18 | |||
| Grodzisk Mazowiecki ITF | 18 | |||
| Haren ITF | 22 | |||
| Hurghada 9 ITF | 17 | |||
| Lujan ITF | 18 | |||
| Monastir 48 ITF | 14 | |||
| Porto Velho ITF | 13 | |||
| Pécs ITF | 7 | |||
| Yeongwol ITF | 18 | |||
| UTR Pro Match Series | 39 | |||
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