 Turkey: M15 Antalya 9 - Doubles - Main |
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| Quarter-finals | Akkoyun U./Turker M. N. | Mashtakov N./Vasa E. | WO. | details | 04.04.2024 |
| 1/8-finals | Fomin I./Milushev A. | Mashtakov N./Vasa E. | 0:2 (1:6, 2:6) | details | 02.04.2024 |
 Croatia: M15 Porec - Doubles - Main |
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| Semi-finals | Kremenchutskyi I./Mashtakov N. | Bill A./Mikrut L. | 0:2 (0:6, 3:6) | details | 08.03.2024 |
| Quarter-finals | Maksimovic M./Popovic S. | Kremenchutskyi I./Mashtakov N. | 0:2 (3:6, 4:6) | details | 07.03.2024 |
| 1/8-finals | Kremenchutskyi I./Mashtakov N. | Jakic M./Obradovic D. | 2:1 (1:6, 6:3, 10:5) | details | 06.03.2024 |
| Turkey: M25 Antalya 3 - Doubles - Main |
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| Final | Genov A./Mashtakov N. | Saritas G./Turker M. N. | 1:2 (6:4, 3:6, 7:10) | details | 17.02.2024 |
| Semi-finals | Genov A./Mashtakov N. | Altuna T./Vilicich B. | 2:0 (6:0, 6:3) | details | 17.02.2024 |
| Quarter-finals | Gaubas V./Gea A. | Genov A./Mashtakov N. | 0:2 (0:6, 4:6) | details | 16.02.2024 |
| 1/8-finals | Cretu C./Roveri Sidney G. | Genov A./Mashtakov N. | 0:2 (3:6, 3:6) | details | 16.02.2024 |
| Turkey: M25 Antalya 2 - Doubles - Main |
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| 1/8-finals | Hignett L./MacKinlay J. | Lumsden E./Mashtakov N. | 2:0 (6:4, 6:2) | details | 07.02.2024 |
| Turkey: M25 Antalya - Doubles - Main |
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| Semi-finals | Mashtakov N./Podorozhnyi A. | Banthia S./Ganta S. K. R. | 0:2 (2:6, 4:6) | details | 02.02.2024 |
| Quarter-finals | Mashtakov N./Podorozhnyi A. | Pavlovic L./Popovic S. | 2:1 (4:6, 7:62, 14:12) | details | 01.02.2024 |
| 1/8-finals | Dziubailau D./Shyla Y. | Mashtakov N./Podorozhnyi A. | 0:2 (64:7, 2:6) | details | 30.01.2024 |
 Slovenia: M25 Maribor 2 - Doubles - Main |
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| 1/8-finals | Horvat V./Mashtakov N. | Lipovsek Puches T./Onofrei M. C. | 0:2 (3:6, 3:6) | details | 05.09.2023 |
 Poland: M25 Bielsko Biala - Doubles - Main |
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| 1/8-finals | Horak O./Siniakov D. | Alosha Ushakov N./Mashtakov N. | 2:0 (6:3, 6:3) | details | 15.08.2023 |
| Poland: M15 Wroclaw - Doubles - Main |
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| 1/8-finals | Paty D./Poljak D. | Mashtakov N./Mikula M. | 2:0 (6:3, 6:3) | details | 27.06.2023 |
 Slovakia: M25 Poprad - Doubles - Main |
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| 1/8-finals | Horak O./Pecak S. | Mashtakov N./Pieczkowski O. | 2:0 (6:4, 6:2) | details | 20.06.2023 |
 Hungary: M15 Nyiregyhaza - Doubles - Main |
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| 1/8-finals | Beloborodko I./Mashtakov N. | Farjat T./Monzon I. | 0:2 (4:6, 4:6) | details | 08.06.2023 |
 Serbia: M15 Kursumlijska Banja 4 - Doubles - Main |
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| 1/8-finals | Farjat T./Monzon I. | Buitrago N./Mashtakov N. | 2:0 (7:63, 6:4) | details | 31.05.2023 |
| Serbia: M15 Kursumlijska Banja 3 - Doubles - Main |
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| 1/8-finals | Dellavedova M./Mashtakov N. | Picchione A./Uzhylovskyi V. | 1:2 (6:3, 1:6, 5:10) | details | 23.05.2023 |
| Serbia: M15 Kursumlijska Banja 2 - Doubles - Main |
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| 1/8-finals | Mashtakov N./Uzhylovskyi V. | Jovic V./Juhas K. | 0:2 (3:6, 5:7) | details | 02.05.2023 |
| Croatia: M25 Dubrovnik - Doubles - Main |
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| Quarter-finals | Taylor A./Vanshelboim E. | Mashtakov N./Matvievici E. | 2:0 (6:4, 6:4) | details | 06.04.2023 |
| 1/8-finals | Ambarzumjan E./Obradovic D. | Mashtakov N./Matvievici E. | 0:2 (63:7, 4:6) | details | 04.04.2023 |
 Ukraine: Kyiv - Doubles - Main |
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| 1/8-finals | Gakhov I./Rybakov A. | Kalenichenko D./Mashtakov N. | 2:1 (4:6, 6:1, 10:5) | details | 07.09.2021 |
| Ukraine: M15 Chornomorsk - Doubles - Main |
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| Quarter-finals | Mashtakov N./Tabur C. | Petrenko A./Steiner M. | WO. | details | 02.09.2021 |
| 1/8-finals | Mashtakov N./Tabur C. | Aksu C./Kirci K. | 2:0 (6:2, 6:2) | details | 31.08.2021 |