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| Semi-finals | Basilashvili N. | Virtanen O. | CAN. | detalhes | 14.02.2026 | ||
| Wong C. | Virtanen O. | 0:2 (5:7, 2:6) | detalhes | 08.02.2026 | |||
| Cheng S. C. N. | Virtanen O. | 0:2 (0:6, 1:6) | detalhes | 07.02.2026 | |||
| Semi-finals | Nardi L. | Virtanen O. | 2:0 (7:66, 6:2) | detalhes | 31.01.2026 | ||
| Quarter-finals | Virtanen O. | Travaglia S. | 2:0 (6:4, 7:5) | detalhes | 30.01.2026 | ||
| 1/8-finals | Giustino L. | Virtanen O. | 0:2 (64:7, 3:6) | detalhes | 29.01.2026 | ||
| 1/16-finals | Zhang Z. | Virtanen O. | 1:2 (6:4, 612:7, 65:7) | detalhes | 27.01.2026 | ||
| Quarter-finals | Virtanen O. | Mejia N. | 1:2 (3:6, 6:3, 4:6) | detalhes | 13.01.2026 | ||
| 1/16-finals | Napolitano S. | Virtanen O. | 2:1 (3:6, 7:66, 6:4) | detalhes | 19.11.2025 | ||
| 1/16-finals | Lajal M. | Virtanen O. | CAN. | detalhes | 11.11.2025 | ||
| Final | Virtanen O. | Kypson P. | 1:2 (6:4, 3:6, 4:6) | detalhes | 09.11.2025 | ||
| Semi-finals | Virtanen O. | Gueymard Wayenburg S. | 2:0 (6:2, 6:4) | detalhes | 08.11.2025 | ||
| Quarter-finals | Cilic M. | Virtanen O. | 0:2 (5:7, 4:6) | detalhes | 07.11.2025 | ||
| 1/8-finals | Ruusuvuori E. | Virtanen O. | 0:2 (4:6, 2:6) | detalhes | 06.11.2025 | ||
| 1/16-finals | Onclin G. | Virtanen O. | 0:2 (1:6, 66:7) | detalhes | 05.11.2025 | ||
| Quarter-finals | Blockx A. | Virtanen O. | 2:1 (4:6, 6:3, 6:2) | detalhes | 31.10.2025 | ||
| 1/8-finals | Virtanen O. | Schoolkate T. | 2:0 (6:2, 6:4) | detalhes | 29.10.2025 | ||
| 1/16-finals | Landaluce M. | Virtanen O. | 0:2 (2:6, 5:7) | detalhes | 27.10.2025 | ||
| 1/16-finals | Virtanen O. | Tabur C. | 1:2 (6:4, 65:7, 63:7) | detalhes | 21.10.2025 | ||
| Final | Gaston H. | Virtanen O. | 1:2 (1:6, 6:3, 3:6) | detalhes | 12.10.2025 | ||
| Semi-finals | Martineau M. | Virtanen O. | 0:2 (63:7, 4:6) | detalhes | 11.10.2025 | ||
| Quarter-finals | Virtanen O. | Hemery C. | 2:0 (6:4, 6:4) | detalhes | 10.10.2025 | ||
| 1/8-finals | Blockx A. | Virtanen O. | 1:2 (6:2, 3:6, 63:7) | detalhes | 09.10.2025 | ||
| 1/16-finals | Paris T. | Virtanen O. | 0:2 (3:6, 65:7) | detalhes | 06.10.2025 | ||
| Ivanov I. | Virtanen O. | CAN. | detalhes | 14.09.2025 | |||
| Vasilev A. | Virtanen O. | 2:0 (6:3, 7:5) | detalhes | 13.09.2025 | |||
| 1/8-finals | Sakellaridis S. | Virtanen O. | 1:0 RET. (6:2, 3:1) | detalhes | 04.09.2025 | ||
| 1/16-finals | Kotov P. | Virtanen O. | 0:2 (4:6, 2:6) | detalhes | 02.09.2025 | ||
| 1/16-finals | Virtanen O. | Stewart H. | 0:2 (3:6, 3:6) | detalhes | 27.08.2025 | ||
| Semi-finals | Virtanen O. | Riedi L. | 0:2 (68:7, 4:6) | detalhes | 21.08.2025 | ||
| Quarter-finals | Virtanen O. | Willwerth B. | 2:1 (65:7, 6:3, 6:2) | detalhes | 19.08.2025 | ||
| 1/8-finals | Borges N. | Virtanen O. | WO. | detalhes | 12.06.2025 | ||
| 1/16-finals | Virtanen O. | Etcheverry T. M. | 2:0 (7:66, 7:5) | detalhes | 10.06.2025 | ||
| Final | Smith C. | Virtanen O. | 0:2 (4:6, 4:6) | detalhes | 08.06.2025 | ||
| Semi-finals | Virtanen O. | Holt B. | 2:1 (6:4, 4:6, 7:63) | detalhes | 07.06.2025 | ||
| Quarter-finals | Wong C. | Virtanen O. | 0:2 (2:6, 5:7) | detalhes | 06.06.2025 | ||
| 1/8-finals | Huesler M. | Virtanen O. | 1:2 (3:6, 7:66, 1:6) | detalhes | 05.06.2025 | ||
| 1/16-finals | Virtanen O. | Vukic A. | 2:0 (7:64, 6:3) | detalhes | 03.06.2025 | ||
| Semi-finals | Harris L. | Virtanen O. | 2:0 (6:4, 7:5) | detalhes | 22.05.2025 | ||
| Quarter-finals | Escoffier A. | Virtanen O. | 0:2 (63:7, 3:6) | detalhes | 20.05.2025 | ||
| Cheng S. C. N./Wong C. | Niklas-Salminen P./Virtanen O. | 0:2 (4:6, 5:7) | detalhes | 08.02.2026 | |||
| Semi-finals | Schnaitter J./Wallner M. | Lagerbohm L./Virtanen O. | WO. | detalhes | 07.11.2025 | ||
| Quarter-finals | Cervantes I./Cukierman D. | Lagerbohm L./Virtanen O. | 1:2 (6:3, 3:6, 5:10) | detalhes | 06.11.2025 | ||
| 1/8-finals | Blancaneaux G./Hemery C. | Lagerbohm L./Virtanen O. | 0:1 RET. (2:6, 0:2) | detalhes | 04.11.2025 | ||
| 1/8-finals | Barrientos N./Vocel M. | Ruusuvuori E./Virtanen O. | 2:0 (6:3, 6:2) | detalhes | 22.10.2025 | ||
| 1/8-finals | Durasovic V./Hellum-Lilleengen L. | Kaukovalta P./Virtanen O. | 2:0 (6:3, 6:2) | detalhes | 08.10.2025 | ||
| Donski A./Nesterov P. | Heliovaara H./Virtanen O. | 2:1 (6:4, 1:6, 7:61) | detalhes | 14.09.2025 | |||
| 1/8-finals | Niklas-Salminen P./Virtanen O. | Azkara A./Ursu V. | 1:2 (65:7, 6:4, 4:10) | detalhes | 03.09.2025 | ||
| 1/8-finals | Niklas-Salminen P./Virtanen O. | Ivashka I./Wiskandt M. | CAN. | detalhes | 03.09.2025 | ||
| 1/8-finals | Kaukovalta P./Virtanen O. | Pichler D./Rodionov J. | 0:2 (2:6, 65:7) | detalhes | 26.08.2025 | ||