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| Quarter-finals | Loge J. | Ovcharenko O. | 0:0 RET. (1:4) | detalhes | 10.04.2026 | ||
| 1/8-finals | Ovcharenko O. | Ehrenschneider N. | 2:0 (6:2, 6:1) | detalhes | 09.04.2026 | ||
| 1/16-finals | Ovcharenko O. | Neuchrist M. | 2:1 (6:2, 1:6, 6:3) | detalhes | 07.04.2026 | ||
| 1/8-finals | Dostanic S. | Ovcharenko O. | 2:1 (6:3, 62:7, 6:1) | detalhes | 19.03.2026 | ||
| 1/16-finals | Ovcharenko O. | Jones M. | 2:0 (6:1, 6:4) | detalhes | 18.03.2026 | ||
| Final | Gadamauri B. | Ovcharenko O. | 2:0 (6:4, 6:4) | detalhes | 09.03.2026 | ||
| Semi-finals | Kountourakis I. | Ovcharenko O. | 0:2 (3:6, 0:6) | detalhes | 08.03.2026 | ||
| Semi-finals | Ovcharenko O. | Fellin P. O. | 1:2 (7:5, 3:6, 3:6) | detalhes | 01.03.2026 | ||
| Semi-finals | Piraino G. | Ovcharenko O. | 2:1 (3:6, 6:2, 6:3) | detalhes | 22.02.2026 | ||
| Calzi R. | Ovcharenko O. | 0:2 (4:6, 4:6) | detalhes | 08.02.2026 | |||
| Semi-finals | Ovcharenko O. | Berkieta T. | 0:2 (64:7, 3:6) | detalhes | 31.01.2026 | ||
| Quarter-finals | Ovcharenko O. | Saitoh K. | 2:0 (7:62, 7:5) | detalhes | 30.01.2026 | ||
| 1/8-finals | Ovcharenko O. | Kim G. J. | 2:0 (6:3, 6:3) | detalhes | 29.01.2026 | ||
| 1/16-finals | Ovcharenko O. | Oki Y. | 2:1 (6:3, 4:6, 6:2) | detalhes | 29.01.2026 | ||
| Semi-finals | Ovcharenko O. | Vankan M. | 0:2 (1:6, 3:6) | detalhes | 24.01.2026 | ||
| Quarter-finals | Ovcharenko O. | Sahtali T. | 1:0 RET. (6:1, 5:0) | detalhes | 23.01.2026 | ||
| 1/8-finals | Ovcharenko O. | Tessa L. | 2:0 (6:4, 6:4) | detalhes | 23.01.2026 | ||
| 1/16-finals | Ovcharenko O. | Colombo A. | 2:0 (7:66, 6:3) | detalhes | 22.01.2026 | ||
| Final | Madaras N. | Ovcharenko O. | 2:0 (6:3, 6:0) | detalhes | 28.12.2025 | ||
| Semi-finals | Nedelko I. | Ovcharenko O. | WO. | detalhes | 27.12.2025 | ||
| Quarter-finals | Cazacu D. N. | Ovcharenko O. | 0:2 (0:6, 3:6) | detalhes | 27.12.2025 | ||
| 1/8-finals | Horoz A. | Ovcharenko O. | 0:2 (1:6, 2:6) | detalhes | 26.12.2025 | ||
| 1/16-finals | Biberli U. K. | Ovcharenko O. | 0:2 (2:6, 2:6) | detalhes | 25.12.2025 | ||
| 1/8-finals | Ovcharenko O. | Madaras N. | 1:2 (1:6, 7:5, 2:6) | detalhes | 28.11.2025 | ||
| 1/16-finals | Ovcharenko O. | Fiorentini A. | 2:0 (7:62, 6:3) | detalhes | 26.11.2025 | ||
| Quarter-finals | Pieri S. | Ovcharenko O. | 2:0 (6:4, 6:4) | detalhes | 21.11.2025 | ||
| Quarter-finals | Nesterov P./Ovcharenko O. | Broska F./Chopra K. | 1:2 (5:7, 6:1, 8:10) | detalhes | 09.04.2026 | ||
| 1/8-finals | Nesterov P./Ovcharenko O. | Branger L./Deflandre L. | 0:0 RET. (3:0) | detalhes | 08.04.2026 | ||
| Quarter-finals | Gadamauri B./Lumsden E. | Nesterov P./Ovcharenko O. | 2:0 (6:1, 7:5) | detalhes | 19.03.2026 | ||
| 1/8-finals | Jones A./Jones M. | Nesterov P./Ovcharenko O. | 0:2 (2:6, 2:6) | detalhes | 18.03.2026 | ||
| Final | Geerts M./Pereira T. | Nesterov P./Ovcharenko O. | 2:1 (3:6, 6:4, 10:5) | detalhes | 14.03.2026 | ||
| Semi-finals | Nesterov P./Ovcharenko O. | Bittoun C./Henning P. | 2:0 (6:1, 6:2) | detalhes | 13.03.2026 | ||
| Quarter-finals | Nesterov P./Ovcharenko O. | Bianchi J. J./Jermar J. | 2:1 (3:6, 6:2, 10:4) | detalhes | 12.03.2026 | ||
| 1/8-finals | Nesterov P./Ovcharenko O. | Barranco Cosano J./Merino A. | 2:0 (7:5, 6:1) | detalhes | 11.03.2026 | ||
| Quarter-finals | Nesterov P./Ovcharenko O. | Tsitsipas Pa./Tsitsipas Pe. | 1:2 (6:3, 4:6, 2:10) | detalhes | 05.03.2026 | ||
| 1/8-finals | Bittoun C./Henning P. | Nesterov P./Ovcharenko O. | 0:2 (5:7, 63:7) | detalhes | 04.03.2026 | ||
| Quarter-finals | Basic M./Fatic N. | Nesterov P./Ovcharenko O. | 2:0 (7:64, 7:5) | detalhes | 26.02.2026 | ||
| 1/8-finals | Parizzia N./Vega Hernandez D. | Nesterov P./Ovcharenko O. | 1:2 (63:7, 7:66, 5:10) | detalhes | 25.02.2026 | ||
| Knaff A./Rodesch C. | Orlov V./Ovcharenko O. | 2:0 (6:4, 6:2) | detalhes | 08.02.2026 | |||
| Knaff A./Rodesch C. | Bielinskyi V./Ovcharenko O. | CAN. | detalhes | 08.02.2026 | |||
| 1/8-finals | Papa C./Smiej Y. | Campana Lee G./Ovcharenko O. | 2:0 (7:64, 6:4) | detalhes | 27.01.2026 | ||
| 1/8-finals | Saitoh K./Yamanaka T. | Ovcharenko O./Perez Contri S. | 2:1 (0:6, 6:4, 10:3) | detalhes | 23.01.2026 | ||
| Semi-finals | Marinescu M. R./Ovcharenko O. | Koyama H./Muto S. | 0:2 (4:6, 3:6) | detalhes | 27.12.2025 | ||
| Quarter-finals | Beckles D./Wagner A. | Marinescu M. R./Ovcharenko O. | 0:2 (1:6, 1:6) | detalhes | 26.12.2025 | ||
| 1/8-finals | Mirarchi W./Stepanov D. | Marinescu M. R./Ovcharenko O. | 0:2 (3:6, 3:6) | detalhes | 26.12.2025 | ||
| Final | Barry C./Ovcharenko O. | Maksimovic M./Popovic S. | 1:2 (6:2, 5:7, 7:10) | detalhes | 29.11.2025 | ||
| Semi-finals | Barry C./Ovcharenko O. | Biletic I./Milovanov T. | 2:0 (6:4, 7:63) | detalhes | 28.11.2025 | ||
| Quarter-finals | Barry C./Ovcharenko O. | Fiorentini A./Hopp M. | 2:0 (6:4, 6:2) | detalhes | 28.11.2025 | ||
| 1/8-finals | Barry C./Ovcharenko O. | Knippling P./Zielinski M. | WO. | detalhes | 26.11.2025 | ||
| Quarter-finals | Barry C./Ovcharenko O. | Handel T./Steudter B. | 1:2 (6:3, 5:7, 7:10) | detalhes | 20.11.2025 | ||