WTA and ATP rankings on - 31.12.2018
- Searching
- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 9. | - |
Nishikori Kei | Japan | 3590 |
| 75. | - |
Nishioka Yoshihito | Japan | 701 |
| 77. | - |
Daniel Taro | Japan | 691 |
| 145. | 5 |
Sugita Yuichi | Japan | 370 |
| 148. | 6 |
Ito Tatsuma | Japan | 360 |
| 185. | 5 |
Uchiyama Yasutaka | Japan | 275 |
| 191. | 12 |
Moriya Hiroki | Japan | 268 |
| 194. | 7 |
Watanuki Yosuke | Japan | 263 |
| 214. | 18 |
Soeda Go | Japan | 231 |
| 282. | 12 |
Uchida Kaichi | Japan | 137 |
| 326. | 114 |
Takahashi Yusuke | Japan | 78 |
| 337. | 33 |
Tokuda Renta | Japan | 68 |
| 358. | 28 |
Ochi Makoto | Japan | 57 |
| 396. | 269 |
Sekiguchi Shuichi | Japan | 35 |
| 487. | 126 |
Shimizu Yuta | Japan | 13 |
| 505. | 13 |
Ehara Hiroyasu | Japan | 11 |
| 545. | 351 |
Hazawa Shinji | Japan | 7 |
| 564. | 480 |
Kibi Yuya | Japan | 6 |
| 597. | 22 |
Saito Takashi | Japan | 3 |
| 601. | 85 |
Mochizuki Yuki | Japan | 3 |
| 618. | 24 |
Yamasaki Jumpei | Japan | 3 |
| 647. | 218 |
Noguchi Rio | Japan | 1 |
| 653. | 73 |
Fukuda Sora | Japan | 1 |
| 657. | 233 |
Imai Shintaro | Japan | 1 |
|1-50|
- Betting ranking
| Adkar Vaishnavi | +1130 |
| Gallego Juan Ignacio | +985 |
| De Stefano Samira | +913 |
| Frey Anna | +816 |
| Jurna Elizabeth | +811 |
| Otegui Juan Bautista | -1074 |
| Kuparev Anastasiya | -911 |
| Michalik Radovan | -895 |
| Svatikova Laura | -826 |
| Hoste Ferrer Claudia | -813 |
This week's tournaments
| Main tournaments | ||||
| Rome | 31 | |||
| Rome WTA | 32 | |||
| Lower level tournaments | ||||
| Wuxi challenger | 10 | |||
| Francavilla challenger | 12 | |||
| Santos challenger | 18 | |||
| UTR Pro Tennis Series | 16 | |||
| UTR Pro Tennis Series 3 | 24 | |||
| UTR Pro Tennis Series 5 | 7 | |||
| UTR Pro Tennis Series 9 | 7 | |||
| Istanbul 2 WTA | 9 | |||
| Jiujiang 2 | 7 | |||
| Indian Harbour Beach ITF | 20 | |||
| Saint-Gaudens ITF | 17 | |||
| Lopota 2 ITF | 16 | |||
| Boca Raton 6 ITF | 18 | |||
| Changwon ITF | 12 | |||
| Fukuoka ITF | 12 | |||
| Monastir 34 ITF | 11 | |||
| Nottingham 7 ITF | 13 | |||
| Platja D'Aro ITF | 13 | |||
| Santa Margherita Di Pula 6 ITF | 12 | |||
| Tumkur ITF | 12 | |||
| UTR Pro Tennis Series 5 | 17 | |||
| Belgrade ITF | 12 | |||
| Hurghada 4 ITF | 20 | |||
| Kalmar ITF | 11 | |||
| Mbombela 2 ITF | 13 | |||
| Nakhon Pathom 2 ITF | 12 | |||
| Reichstett ITF | 11 | |||
| UTR Pro Match Series | 21 | |||
| UTR Pro Tennis Series | 16 | |||
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