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| Semi-finals | Golubev D. | Nedelko I. | 0:1 RET. (3:6, 6:5) | details | 23.11.2025 | ||
| Semi-finals | Ehrenschneider N. | Nedelko I. | CAN. | details | 23.11.2025 | ||
| Final | Kellovsky D. | Nedelko I. | 2:1 (64:7, 6:0, 6:2) | details | 17.11.2025 | ||
| Semi-finals | Betov S. | Nedelko I. | 0:2 (3:6, 1:6) | details | 16.11.2025 | ||
| 1/16-finals | Sureshkumar M. | Nedelko I. | 2:1 (6:2, 2:6, 6:4) | details | 11.11.2025 | ||
| 1/8-finals | Nedelko I. | Pieczkowski O. | 0:2 (3:6, 4:6) | details | 06.11.2025 | ||
| 1/16-finals | Nedelko I. | Stephens Z. | 2:0 (6:3, 7:6) | details | 04.11.2025 | ||
| Quarter-finals | Ursu V. | Nedelko I. | 2:0 (7:63, 6:4) | details | 17.10.2025 | ||
| 1/8-finals | Glomb A. | Nedelko I. | 0:2 (4:6, 2:6) | details | 16.10.2025 | ||
| 1/16-finals | Stephens Z. | Nedelko I. | 1:2 (2:6, 7:65, 63:7) | details | 15.10.2025 | ||
| 1/8-finals | Ursu V. | Nedelko I. | 1:1 RET. (3:6, 6:3, 4:3) | details | 09.10.2025 | ||
| 1/16-finals | Venticinque M. | Nedelko I. | 0:2 (2:6, 3:6) | details | 08.10.2025 | ||
| 1/8-finals | Nedelko I. | Sasikumar M. | WO. | details | 02.10.2025 | ||
| 1/16-finals | Zick S. | Nedelko I. | 0:2 (0:6, 3:6) | details | 01.10.2025 | ||
| 1/16-finals | Nedelko I. | Molcan A. | 0:1 RET. (4:6, 0:1) | details | 02.09.2025 | ||
| Final | Nedelko I. | Tkemaladze Z. | 2:1 (4:6, 7:63, 7:63) | details | 01.09.2025 | ||
| Semi-finals | Nedelko I. | Tufekci C. E. | 2:0 (6:1, 6:2) | details | 31.08.2025 | ||
| Semi-finals | Nedelko I. | Vales A. | 0:2 (5:7, 5:7) | details | 17.08.2025 | ||
| Semi-finals | Moroni F. | Nedelko I. | 1:1 RET. (3:6, 6:1, 2:0) | details | 10.08.2025 | ||
| 1/8-finals | Sanchez Jover C. | Nedelko I. | WO. | details | 10.07.2025 | ||
| 1/16-finals | Nedelko I. | Reinhard B. J. | 2:1 (67:7, 6:4, 6:2) | details | 09.07.2025 | ||
| 1/8-finals | Krumich M. | Nedelko I. | 2:1 (6:4, 1:6, 6:3) | details | 27.03.2025 | ||
| 1/16-finals | Nedelko I. | Baragiola Mordini T. C. | 2:0 (6:4, 6:1) | details | 26.03.2025 | ||
| 1/8-finals | Nedelko I. | Karlovskiy E. | 0:2 (1:6, 4:6) | details | 06.02.2025 | ||
| 1/16-finals | Nedelko I. | Tokuda R. | 2:0 (7:63, 7:63) | details | 04.02.2025 | ||
| 1/8-finals | Beauge M. | Nedelko I. | 2:0 (6:3, 6:3) | details | 30.01.2025 | ||
| 1/16-finals | Larue L. | Nedelko I. | 0:2 (4:6, 1:6) | details | 28.01.2025 | ||
| 1/16-finals | Nedelko I. | Merida Aguilar D. | 0:2 (2:6, 4:6) | details | 22.01.2025 | ||
| 1/16-finals | Alkaya M. | Nedelko I. | 2:0 (6:3, 6:3) | details | 15.01.2025 | ||
| 1/8-finals | Krutykh O. | Nedelko I. | WO. | details | 12.12.2024 | ||
| 1/16-finals | Nedelko I. | Kolar Z. | 2:0 (6:4, 6:4) | details | 10.12.2024 | ||
| 1/16-finals | Latinovic S. | Nedelko I. | 2:0 (6:2, 6:2) | details | 13.11.2024 | ||
| Semi-finals | Binda A. | Nedelko I. | 2:0 (6:3, 6:4) | details | 09.11.2024 | ||
| Quarter-finals | Schell N. | Nedelko I. | 1:2 (3:6, 6:4, 1:6) | details | 08.11.2024 | ||
| 1/8-finals | Nedelko I. | Zhu M. | 2:0 (6:4, 6:2) | details | 07.11.2024 | ||
| 1/16-finals | Nedelko I. | Stuurman R. | 2:1 (7:65, 63:7, 6:2) | details | 06.11.2024 | ||
| 1/8-finals | Derepasko T./Nedelko I. | Simakin I./Verbin P. | 0:0 RET. (1:4) | details | 12.11.2025 | ||
| Quarter-finals | Fomin S./Golubev D. | Nedelko I./Vanta V. | 2:1 (6:3, 3:6, 10:7) | details | 06.11.2025 | ||
| 1/8-finals | Nedelko I./Vanta V. | Abduljalil E./Alhogbani A. F. | 2:1 (4:6, 6:4, 10:7) | details | 05.11.2025 | ||
| Quarter-finals | Dolzhenkov D./Nedelko I. | Mesquida Berg O./Tanner G. L. | 1:2 (4:6, 7:66, 3:10) | details | 16.10.2025 | ||
| 1/8-finals | Dolzhenkov D./Nedelko I. | Hou C. E./Bo Shi L. | 2:1 (6:4, 3:6, 10:6) | details | 14.10.2025 | ||
| 1/8-finals | Nedelko I./Papamalamis T. | Added D./Reymond A. | WO. | details | 13.08.2025 | ||
| 1/8-finals | Nedelko I./Vatutin A. | Poljak D./Ruehl T. | 0:2 (4:6, 2:6) | details | 08.07.2025 | ||
| 1/8-finals | Westphal M./Winegar T. | Marrero D./Nedelko I. | 2:0 (6:1, 6:4) | details | 01.07.2025 | ||
| 1/8-finals | Nedelko I./Yazdani A. | Andreescu S. A./Ghetu G. | 0:2 (63:7, 4:6) | details | 25.03.2025 | ||
| Quarter-finals | Nedelko I./Zaytsev I. | Forger A./Kopilevich D. | 1:2 (66:68, 6:4, 8:10) | details | 06.02.2025 | ||
| 1/8-finals | Nedelko I./Zaytsev I. | Alshati A./Mubarak A. | 2:0 (6:3, 6:4) | details | 04.02.2025 | ||
| Quarter-finals | Nedelko I./Zaytsev I. | Mischker F./Nikles J. | 0:2 (3:6, 4:6) | details | 30.01.2025 | ||
| 1/8-finals | De Cuyper J./Hamza Reguig S. | Nedelko I./Zaytsev I. | 0:2 (63:7, 1:6) | details | 28.01.2025 | ||
| Quarter-finals | Dolzhenkov D./Nedelko I. | Agostini S./Elyasi S. | 0:2 (4:6, 4:6) | details | 19.09.2024 | ||