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| 1/16-finals | Zaytsev I. | Laborde A. | 1:2 (6:4, 2:6, 1:6) | detalhes | 19.11.2025 | ||
| 1/16-finals | Van Herzeele J. | Zaytsev I. | 2:0 (7:64, 6:3) | detalhes | 12.11.2025 | ||
| 1/16-finals | Zaytsev I. | Glomb A. | 0:2 (2:6, 1:6) | detalhes | 05.03.2025 | ||
| 1/16-finals | Kamrowski M. | Zaytsev I. | 2:1 (5:7, 6:1, 6:1) | detalhes | 06.11.2024 | ||
| 1/16-finals | Zaytsev I. | Bogatov D. | 0:2 (1:6, 4:6) | detalhes | 30.10.2024 | ||
| 1/16-finals | Zaytsev I. | Milushev A. | 1:2 (6:3, 3:6, 4:6) | detalhes | 03.07.2024 | ||
| 1/16-finals | Erel Y. | Zaytsev I. | 2:0 (6:0, 6:1) | detalhes | 29.11.2023 | ||
| 1/16-finals | Danilov S. | Zaytsev I. | 2:0 (6:2, 6:4) | detalhes | 13.07.2022 | ||
| 1/16-finals | Leshem E. | Zaytsev I. | 2:0 (6:2, 6:2) | detalhes | 07.07.2021 | ||
| Quarter-finals | Lo Y. J./Wang K. | Meng F./Zaytsev I. | 2:1 (4:6, 6:1, 10:8) | detalhes | 04.12.2025 | ||
| 1/8-finals | Meng F./Zaytsev I. | Alhogbani A. F./Setkic A. | 2:1 (6:1, 3:6, 10:5) | detalhes | 03.12.2025 | ||
| Quarter-finals | Haliak M./Zaytsev I. | Jorgensen S. G./Lorusso L. | 0:2 (4:6, 2:6) | detalhes | 27.11.2025 | ||
| 1/8-finals | Minh D. V. T./Nguyen P. V. | Haliak M./Zaytsev I. | 1:2 (4:6, 6:4, 5:10) | detalhes | 25.11.2025 | ||
| 1/8-finals | Alcantara F. C./Ferguson C. | Karlovskiy E./Zaytsev I. | 2:1 (6:2, 5:7, 14:12) | detalhes | 18.11.2025 | ||
| Quarter-finals | Karlovskiy E./Zaytsev I. | Alcantara F. C./Ferguson C. | 0:2 (3:6, 1:6) | detalhes | 13.11.2025 | ||
| 1/8-finals | Adam-Gedge Z./Arcon A. | Karlovskiy E./Zaytsev I. | 0:2 (4:6, 3:6) | detalhes | 11.11.2025 | ||
| 1/8-finals | Alhogbani A. F./Chan B. | Karlovskiy E./Zaytsev I. | CAN. | detalhes | 11.11.2025 | ||
| Quarter-finals | Maute J./Zick S. | Haliak M./Zaytsev I. | 2:0 (6:3, 6:2) | detalhes | 21.08.2025 | ||
| 1/8-finals | Haliak M./Zaytsev I. | Fix D./Ramskogler G. | 2:1 (6:4, 0:6, 10:8) | detalhes | 21.08.2025 | ||
| Quarter-finals | Dazert J./Reiff T. | Haliak M./Zaytsev I. | 2:1 (4:6, 7:65, 12:10) | detalhes | 14.08.2025 | ||
| 1/8-finals | Fusenig T.-F./Jelen H. | Haliak M./Zaytsev I. | 0:2 (2:6, 4:6) | detalhes | 12.08.2025 | ||
| 1/8-finals | Badenhorst D./Koenig L. | Chekhov A./Zaytsev I. | 2:0 (6:2, 6:3) | detalhes | 15.07.2025 | ||
| 1/8-finals | Eqbal I./Longwe-Smit T. | Chekhov A./Zaytsev I. | 2:0 (6:3, 7:5) | detalhes | 01.07.2025 | ||
| Semi-finals | Fomin S./Orlov V. | Chekhov A./Zaytsev I. | 2:0 (6:1, 6:3) | detalhes | 30.05.2025 | ||
| Quarter-finals | Chekhov A./Zaytsev I. | Dadabaev A./Mirzaganiyev F. | 2:1 (2:6, 7:5, 12:10) | detalhes | 29.05.2025 | ||
| 1/8-finals | Lorusso L./Shin M. | Chekhov A./Zaytsev I. | 0:2 (5:7, 62:7) | detalhes | 27.05.2025 | ||
| Quarter-finals | Eqbal I./Sinha N. K. | Aleshchev A./Zaytsev I. | 2:0 (6:1, 7:5) | detalhes | 22.05.2025 | ||
| 1/8-finals | Bhat A. P./Nandal Y. | Aleshchev A./Zaytsev I. | 0:1 RET. (4:6, 2:3) | detalhes | 20.05.2025 | ||
| Quarter-finals | Rai A./Uchida K. | Chekhov A./Zaytsev I. | 2:1 (6:1, 3:6, 10:5) | detalhes | 16.05.2025 | ||
| 1/8-finals | Gogeliya K./Shvangiradze A. | Chekhov A./Zaytsev I. | 0:2 (4:6, 4:6) | detalhes | 15.05.2025 | ||
| Quarter-finals | Nedelko I./Zaytsev I. | Forger A./Kopilevich D. | 1:2 (66:68, 6:4, 8:10) | detalhes | 06.02.2025 | ||
| 1/8-finals | Nedelko I./Zaytsev I. | Alshati A./Mubarak A. | 2:0 (6:3, 6:4) | detalhes | 04.02.2025 | ||
| Quarter-finals | Nedelko I./Zaytsev I. | Mischker F./Nikles J. | 0:2 (3:6, 4:6) | detalhes | 30.01.2025 | ||
| 1/8-finals | De Cuyper J./Hamza Reguig S. | Nedelko I./Zaytsev I. | 0:2 (63:7, 1:6) | detalhes | 28.01.2025 | ||
| Quarter-finals | Saritas G./Turker M. N. | Ivanov S./Zaytsev I. | 2:0 (6:2, 6:3) | detalhes | 31.10.2024 | ||
| 1/8-finals | Ivanov S./Zaytsev I. | Avanoglu O./Meryumoglu A. O. | 2:0 (6:2, 6:4) | detalhes | 29.10.2024 | ||
| 1/8-finals | Giovannini F./Giovannini U. M. | Kazakov I./Zaytsev I. | 2:1 (6:4, 64:7, 11:9) | detalhes | 14.08.2024 | ||
| 1/8-finals | Stoliar I./Zaytsev I. | Callejon H. S./Elicha Navas G. | 0:2 (4:6, 3:6) | detalhes | 23.04.2024 | ||
| Quarter-finals | Chekhov A./Zaytsev I. | Kukasian A./Nesterov P. | 1:2 (1:6, 6:3, 7:10) | detalhes | 07.03.2024 | ||
| 1/8-finals | Anhelov I./Syrovatskiy O. | Chekhov A./Zaytsev I. | 0:2 (2:6, 4:6) | detalhes | 05.03.2024 | ||
| 1/8-finals | Kazakov I./Zaytsev I. | Panak Y./Schuetze C. | 0:2 (3:6, 66:7) | detalhes | 19.09.2023 | ||
| 1/8-finals | Henning B./Schuetze C. | Savelev D./Zaytsev I. | 2:0 (6:1, 7:63) | detalhes | 01.11.2022 | ||
| 1/8-finals | Kamath M./Suresh D. | Yu C./Zaytsev I. | 2:1 (6:2, 3:6, 10:7) | detalhes | 20.07.2022 | ||