WTA and ATP rankings on - 27.12.2021
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- Ranking - singles
- Ranking - doubles
- Race - singles
| Rank | Move | Player name | Country | Points |
| 4. | - |
Tsitsipas Stefanos | Greece | 6540 |
| 399. | 1 |
Pervolarakis Michail | Greece | 106 |
| 771. | 7 |
Tsitsipas Petros | Greece | 27 |
| 855. | 4 |
Kalovelonis Markos | Greece | 19 |
| 1076. | 2 |
Thanos Aristotelis | Greece | 10 |
| 1199. | - |
Skorilas Alexandros | Greece | 7 |
| 1373. | 3 |
Sakellaridis Stefanos | Greece | 4 |
| 1571. | 2 |
Azoides Demetris | Greece | 2 |
| 2062. | 10 |
Stergiou Ioannis | Greece | 1 |
| 2118. | 10 |
Kapiris Stamatis | Greece | 1 |
| 2118. | 10 |
Keisidis Christos | Greece | 1 |
| 2118. | 10 |
Stamoulos Ioannis | Greece | 1 |
| 2153. | 8 |
Xilas Ioannis | Greece | 1 |
| 2206. | 9 |
Sakellaridis Michalis | Greece | 1 |
|1-50|
- Betting ranking
| Adkar Vaishnavi | +1230 |
| Baez Sebastian | +980 |
| Mair Laura | +899 |
| Abanda Francoise | +846 |
| Jurna Elizabeth | +829 |
| Nakanishi Seiya | -756 |
| Fekete Janos | -648 |
| Bakker Sam | -600 |
| Lazarevic Andjela | -600 |
| Lootsma Niels | -597 |
This week's tournaments
| Main tournaments | ||||
| Miami | 24 | |||
| Miami | 44 | |||
| Lower level tournaments | ||||
| Asuncion challenger | 23 | |||
| Morelos challenger | 22 | |||
| Murcia challenger | 25 | |||
| Zadar challenger | 24 | |||
| UTR Pro Tennis Series 3 | 17 | |||
| UTR Pro Tennis Series 5 | 5 | |||
| UTR Pro Tennis Series 9 | 3 | |||
| Kofu ITF | 8 | |||
| Maribor ITF | 8 | |||
| Chihuahua 2 ITF | 8 | |||
| Maanshan 3 ITF | 16 | |||
| Monastir 26 ITF | 1 | |||
| Sabadell ITF | 16 | |||
| San Gregorio ITF | 16 | |||
| UTR Pro Tennis Series 5 | 8 | |||
| UTR Pro Tennis Series 9 | 8 | |||
| Le Havre ITF | 8 | |||
| Monastir 27 ITF | 16 | |||
| Santiago 6 ITF | 16 | |||
| Sharm El Sheikh 8 ITF | 16 | |||
| Wodonga ITF | 16 | |||
| UTR Pro Match Series | 16 | |||
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