Jermar Jan / Poljak David - profil
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Jermar JanCountry: Czech Republic 
Age: 25 (12. 4. 2000) 
Current/Highest rank - singles: 2131. / 1489. Current/Highest rank - doubles: 218. / 216. Plays: right 
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Poljak DavidCountry: Czech Republic 
Height / Weight: 188 cm / 77 kg 
Age: 29 (17. 5. 1996) 
Current/Highest rank - singles: 1045. / 370. Current/Highest rank - doubles: 202. / 202. Plays: right 
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- Next match
 
| Tournament | Round | Start | Match | H | A | 
|---|---|---|---|---|---|
| No upcoming matches. | |||||
- Tournaments results
 
Doubles team's record
- Titles
 
| Year | Main tournaments | Lower level tournaments | ||||
|---|---|---|---|---|---|---|
| No titles | ||||||
- Played matches - 2025
 
| Futures 2025 | Round | Result | H | A | ||
|---|---|---|---|---|---|---|
| 28.09. | Donal / Parou - Jerma / Polja | SF | 6-4, 6-1 | |||
| 27.09. | Jerma / Polja - Baum / Homol | QF | 6-2, 6-3 | 1.17 | 4.41 | |
| 23.09. | Jerma / Polja - Loots / Smejk | R16 | 2-6, 7-65, 10-8 | 1.16 | 4.48 | |
| Targu Mures 2 challenger | Round | Result | H | A | ||
| 19.09. | Agost / Compa - Jerma / Polja | SF | 6-4, 3-6, 10-7 | 2.17 | 1.61 | |
| 18.09. | Jerma / Polja - Denol / Erhar | QF | 64-7, 6-1, 10-8 | 1.73 | 1.99 | |
| Targu Mures challenger | Round | Result | H | A | ||
| 10.09. | Damas / Erhar - Jerma / Polja | R16 | 6-3, 3-6, 11-9 | 3.48 | 1.28 | |
This week's tournaments
| Main tournaments | ||||
| Athens | 13 | |||
| Metz | 10 | |||
| Masters Cup WTA | 11 | |||
| Lower level tournaments | ||||
| Helsinki challenger | 16 | |||
| Taipei challenger | 14 | |||
| Lima 3 challenger | 22 | |||
| Matsuyama challenger | 13 | |||
| Knoxville challenger | 20 | |||
| UTR Pro Tennis Series 3 | 279 | |||
| UTR Pro Tennis Series 5 | 62 | |||
| UTR Pro Tennis Series 9 | 69 | |||
| Austin 2 | 11 | |||
| Tucuman | 12 | |||
| Faro ITF | 15 | |||
| Hamamatsu ITF | 18 | |||
| Liberec ITF | 14 | |||
| Orlando 3 ITF | 26 | |||
| UTR Pro Tennis Series 5 | 35 | |||
| UTR Pro Tennis Series 9 | 13 | |||
| Antalya 32 ITF | 16 | |||
| Castellon 2 ITF | 18 | |||
| Heraklion 9 ITF | 19 | |||
| Lincoln ITF | 15 | |||
| Monastir 6 ITF | 11 | |||
| Neuquén 2 ITF | 24 | |||
| Sharm El Sheikh 20 ITF | 5 | |||
| Solarino 4 ITF | 11 | |||
| Szabolcsveresmart ITF | 14 | |||
| UTR Pro Match Series | 156 | |||
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