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 | +1106 |
| Melnic Vladislav | +926 |
| Baez Sebastian | +905 |
| Mair Laura | +899 |
| Jurna Elizabeth | +829 |
| Nakanishi Seiya | -756 |
| Lazarevic Andjela | -600 |
| Morita Kosuke | -558 |
| Mochizuki Shintaro | -555 |
| Pikkaart James | -551 |
This week's tournaments
| Main tournaments | ||||
| Indian Wells | 34 | |||
| Indian Wells | 32 | |||
| Lower level tournaments | ||||
| Thionville challenger | 16 | |||
| Brasília challenger | 18 | |||
| Kigali challenger | 13 | |||
| Fujairah challenger | 22 | |||
| Hersonissos challenger | 15 | |||
| UTR Pro Tennis Series 3 | 8 | |||
| UTR Pro Tennis Series 5 | 5 | |||
| UTR Pro Tennis Series 9 | 16 | |||
| Antalya 2 WTA | 15 | |||
| Trnava 2 ITF | 15 | |||
| Helsinki ITF | 20 | |||
| Heraklion ITF | 18 | |||
| Kalaburagi ITF | 15 | |||
| Launceston ITF | 14 | |||
| Monastir 25 ITF | 17 | |||
| UTR Pro Tennis Series 5 | 10 | |||
| UTR Pro Tennis Series 9 | 13 | |||
| Antalya 8 ITF | 17 | |||
| Hagetmau ITF | 11 | |||
| Huamantla ITF | 24 | |||
| Maanshan ITF | 20 | |||
| Sharm El Sheikh 6 ITF | 20 | |||
| Trois-Rivieres ITF | 16 | |||
| UTR Pro Match Series | 3 | |||
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