 Kazakhstan: Nur-Sultan 4 - Doubles - Main |
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| Quarter-finals | Krutykh O./Lomakin G. | Ozernoy D./Tashbulatov D. | 2:0 (6:2, 6:1) | details | 22.07.2021 |
| 1/8-finals | Kolganov K./Maslov M. | Ozernoy D./Tashbulatov D. | 0:2 (4:6, 4:6) | details | 20.07.2021 |
| Kazakhstan: M25 Nur-Sultan - Doubles - Main |
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| 1/8-finals | Almashev Z./Ozernoy D. | Leshem E./Oliel Y. | 0:2 (2:6, 2:6) | details | 06.07.2021 |
| Kazakhstan: Almaty 2 - Doubles - Main |
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| 1/8-finals | Murat Y./Ozernoy D. | Fabian P./Martin A. | 0:2 (3:6, 65:7) | details | 15.06.2021 |
| Kazakhstan: M15 Shymkent 4 - Doubles - Main |
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| 1/8-finals | Almashev Z./Ozernoy D. | Metreveli A./Shyla Y. | 0:2 (1:6, 2:6) | details | 01.06.2021 |
| Kazakhstan: M15 Shymkent 3 - Doubles - Main |
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| 1/8-finals | Liutarevich I./Manafov V. | Almashev Z./Ozernoy D. | 2:0 (6:1, 6:2) | details | 26.05.2021 |
| Kazakhstan: M15 Shymkent 2 - Doubles - Main |
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| 1/8-finals | Lomakin G./Mashtakov N. | Almashev Z./Ozernoy D. | 2:0 (6:4, 6:3) | details | 13.04.2021 |
| Kazakhstan: Nur-Sultan - Doubles - Main |
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| 1/8-finals | Molchanov D./Nedovyesov A. | Ayap S./Ozernoy D. | 2:0 (6:3, 6:1) | details | 24.02.2021 |
| Kazakhstan: M15 Nur-Sultan 2 - Doubles - Main |
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| 1/8-finals | Forti F./Maestrelli F. | Almashev Z./Ozernoy D. | 2:0 (6:1, 6:1) | details | 09.02.2021 |
| Kazakhstan: M15 Nur-Sultan - Doubles - Main |
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| 1/8-finals | Kudriashov I./Ozernoy D. | Dembek M./Mikula M. | 0:2 (1:6, 2:6) | details | 02.02.2021 |
| Kazakhstan: M25 Aktobe 2 - Doubles - Main |
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| 1/8-finals | Ivanov V./Ratniuk M. | Bezborodov D./Ozernoy D. | 2:0 (6:3, 6:2) | details | 19.02.2020 |
