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| Quarter-finals | Ryan Ziegann S. | Lee K. | 1:1 RET. (4:6, 7:5, 2:2) | dettagli | 17.04.2026 | ||
| 1/8-finals | Lomakin G. | Lee K. | 0:2 (2:6, 0:6) | dettagli | 16.04.2026 | ||
| 1/16-finals | Adam-Gedge Z. | Lee K. | 0:2 (4:6, 4:6) | dettagli | 15.04.2026 | ||
| 1/16-finals | Aguiard E. | Lee K. | 2:1 (65:7, 7:5, 6:4) | dettagli | 08.04.2026 | ||
| Final | Lee K. | Gray A. | 0:2 (2:6, 3:6) | dettagli | 05.04.2026 | ||
| Semi-finals | Lee K. | Fomin S. | 2:0 (6:4, 7:62) | dettagli | 04.04.2026 | ||
| Quarter-finals | Simakin I. | Lee K. | 1:2 (4:6, 6:4, 66:7) | dettagli | 03.04.2026 | ||
| 1/8-finals | Lee K. | Basing M. | 1:0 RET. (6:4, 2:2) | dettagli | 02.04.2026 | ||
| 1/16-finals | Wang X. | Lee K. | 0:2 (4:6, 0:6) | dettagli | 31.03.2026 | ||
| 1/16-finals | Lee K. | Trotter J. K. | 0:2 (3:6, 6:7) | dettagli | 17.03.2026 | ||
| Quarter-finals | Imamura M. | Lee K. | 2:0 (6:1, 6:2) | dettagli | 13.03.2026 | ||
| 1/8-finals | Shibano K. | Lee K. | 0:2 (0:6, 4:6) | dettagli | 12.03.2026 | ||
| 1/16-finals | Takamisawa T. | Lee K. | 1:2 (6:4, 5:7, 1:6) | dettagli | 11.03.2026 | ||
| 1/16-finals | Lee K. | Marino P. | 0:0 RET. (2:4) | dettagli | 25.02.2026 | ||
| Quarter-finals | Zhukov M. | Lee K. | 2:1 (65:7, 6:4, 6:3) | dettagli | 20.02.2026 | ||
| 1/8-finals | Lee K. | Kivattsev K. | 2:1 (5:7, 6:4, 6:4) | dettagli | 19.02.2026 | ||
| 1/16-finals | Lee K. | Sakellaridis D. | 2:1 (1:6, 6:2, 7:64) | dettagli | 17.02.2026 | ||
| Final | Leong M. W. K. | Lee K. | 2:0 (7:5, 6:3) | dettagli | 05.01.2026 | ||
| Semi-finals | Hazawa S. | Lee K. | 1:2 (7:66, 4:6, 2:6) | dettagli | 04.01.2026 | ||
| 1/8-finals | Kim G. J. | Lee K. | 2:0 (6:1, 6:1) | dettagli | 27.11.2025 | ||
| 1/16-finals | Inui Y. | Lee K. | 0:2 (5:7, 4:6) | dettagli | 25.11.2025 | ||
| Semi-finals | Lee K. | Kim D. J. | 0:2 (2:6, 3:6) | dettagli | 22.11.2025 | ||
| Quarter-finals | Lee K. | Lee J. | 2:1 (3:6, 6:4, 6:4) | dettagli | 21.11.2025 | ||
| 1/8-finals | Lee K. | Ochi M. | 2:0 (6:2, 6:1) | dettagli | 20.11.2025 | ||
| 1/16-finals | Lee K. | Vasiliauskas M. | 2:0 (6:1, 6:2) | dettagli | 18.11.2025 | ||
| 1/16-finals | Hsu Y. H. | Lee K. | 2:1 (6:3, 3:6, 6:0) | dettagli | 04.11.2025 | ||
| Semi-finals | Lee K. | Santillan A. | 0:1 RET. (2:6, 0:0) | dettagli | 25.10.2025 | ||
| Quarter-finals | Haliak M. | Lee K. | 0:2 (2:6, 0:6) | dettagli | 24.10.2025 | ||
| 1/8-finals | Lomakin G. | Lee K. | 0:2 (4:6, 1:6) | dettagli | 23.10.2025 | ||
| 1/16-finals | Masabayashi T. | Lee K. | 1:2 (2:6, 6:3, 2:6) | dettagli | 21.10.2025 | ||
| 1/8-finals | Castelnuovo L. | Lee K. | 2:0 (6:3, 6:4) | dettagli | 18.09.2025 | ||
| 1/16-finals | Lee K. | Wang Q. | 2:0 (6:2, 6:2) | dettagli | 17.09.2025 | ||
| 1/16-finals | Lee K. | Sultanov K. | CAN. | dettagli | 17.09.2025 | ||
| Final | Lee K. | Agafonov E. | 2:1 (3:6, 6:2, 6:1) | dettagli | 14.09.2025 | ||
| Semi-finals | Santillan A. | Lee K. | 0:1 RET. (1:6, 1:3) | dettagli | 13.09.2025 | ||
| Quarter-finals | Lee K. | Wang X. | 2:0 (6:0, 6:0) | dettagli | 12.09.2025 | ||
| 1/8-finals | Lee K. | Ren H. | 2:0 (6:0, 6:4) | dettagli | 11.09.2025 | ||
| 1/16-finals | Lee K. | Cho Seung Woo | 2:0 (6:1, 6:0) | dettagli | 09.09.2025 | ||
| 1/16-finals | Chung Y. | Lee K. | 2:1 (4:6, 7:5, 7:62) | dettagli | 27.08.2025 | ||
| 1/8-finals | Rai A. | Lee K. | 0:1 RET. (63:7, 4:2) | dettagli | 21.08.2025 | ||
| 1/16-finals | Lee K. | Mercier T. | 2:0 (6:3, 6:2) | dettagli | 19.08.2025 | ||
| Quarter-finals | Lee K. | Sun Qian | 1:1 RET. (6:2, 1:6, 2:3) | dettagli | 08.08.2025 | ||
| 1/8-finals | Lee K. | Cho Seung Woo | 2:0 (6:2, 6:2) | dettagli | 07.08.2025 | ||
| 1/16-finals | Lee K. | Yue M. | 2:0 (6:1, 6:1) | dettagli | 06.08.2025 | ||
| 1/8-finals | Lomakin G./Zhu E. | Chen X./Lee K. | 2:1 (6:3, 3:6, 11:9) | dettagli | 14.04.2026 | ||
| 1/8-finals | Lee K./Lu C. | Rejchtman Vinciguerra W./Sickenberger T. | 0:2 (2:6, 1:6) | dettagli | 17.02.2026 | ||
| Semi-finals | Lee K./Lin N. H. | Ichikawa T./Matsuda R. | 0:2 (3:6, 4:6) | dettagli | 29.08.2025 | ||
| Quarter-finals | Lee K./Lin N. H. | Lo Y. J./Yin B. S. | 2:0 (6:1, 7:5) | dettagli | 28.08.2025 | ||
| 1/8-finals | Mitsui S./Sumizawa D. | Lee K./Lin N. H. | 1:2 (7:5, 5:7, 4:10) | dettagli | 27.08.2025 | ||
| 1/8-finals | Ayeni A./Cook E. | Lee K./Lin N. H. | 2:0 (6:4, 6:1) | dettagli | 20.08.2025 | ||