Select tournament type
| Final | Poljicak M. | Kovalik J. | 2:0 (7:614, 6:3) | details | 27.07.2026 | ||
| Semi-finals | Kovalik J. | Piraino G. | 2:1 (2:6, 7:63, 7:5) | details | 26.07.2026 | ||
| Semi-finals | Villanueva G. | Kovalik J. | 2:1 (7:65, 4:6, 7:65) | details | 05.07.2026 | ||
| Quarter-finals | Kovalik J. | Kuzmanov D. | 1:2 (7:5, 1:6, 64:7) | details | 19.06.2026 | ||
| 1/8-finals | Kovalik J. | Galus P. | 2:0 (6:0, 7:5) | details | 18.06.2026 | ||
| 1/16-finals | Barranco Cosano J. | Kovalik J. | 1:2 (7:62, 4:6, 64:7) | details | 16.06.2026 | ||
| 1/16-finals | Martin A. | Kovalik J. | 2:0 (7:5, 6:2) | details | 26.05.2026 | ||
| 1/16-finals | Kovalik J. | Bondioli F. | 0:2 (2:6, 2:6) | details | 12.05.2026 | ||
| Semi-finals | Barroso Campos A. | Kovalik J. | 1:0 RET. (6:4, 3:0) | details | 12.10.2025 | ||
| 1/16-finals | Sorger S. | Kovalik J. | 2:1 (6:4, 5:7, 6:4) | details | 17.09.2025 | ||
| Final | Kovalik J. | Moeller M. | 2:0 (6:2, 7:5) | details | 15.09.2025 | ||
| Semi-finals | Cecchinato M. | Kovalik J. | 0:2 (63:7, 2:6) | details | 14.09.2025 | ||
| 1/8-finals | Kovalik J. | Tirante T. A. | 1:2 (3:6, 6:4, 5:7) | details | 12.09.2025 | ||
| 1/16-finals | Vrbensky M. | Kovalik J. | 0:2 (1:6, 1:6) | details | 09.09.2025 | ||
| Final | Moeller M. | Kovalik J. | 0:2 (2:6, 3:6) | details | 08.09.2025 | ||
| Semi-finals | Surudo B. | Kovalik J. | 0:2 (2:6, 1:6) | details | 07.09.2025 | ||
| 1/16-finals | Choinski J. | Kovalik J. | 2:0 (6:0, 6:2) | details | 02.09.2025 | ||
| Final | Novak D. | Kovalik J. | 1:2 (1:6, 6:3, 1:6) | details | 01.09.2025 | ||
| Semi-finals | Jermar J. | Kovalik J. | 0:2 (4:6, 2:6) | details | 31.08.2025 | ||
| Final | Roncadelli F. | Kovalik J. | 2:0 (7:5, 6:2) | details | 18.08.2025 | ||
| Semi-finals | Kovalik J. | Alcala Gurri M. | 2:0 (6:3, 6:4) | details | 17.08.2025 | ||
| Semi-finals | Ivanovski K. | Kovalik J. | 2:0 (7:65, 7:64) | details | 13.07.2025 | ||
| Final | Barrena A. | Kovalik J. | 2:1 (2:6, 7:66, 7:5) | details | 07.07.2025 | ||
| Semi-finals | Zeuch T. | Kovalik J. | 0:2 (1:6, 0:6) | details | 06.07.2025 | ||
| Semi-finals | Kovalik J. | Jarry N. | 0:2 (3:6, 4:6) | details | 25.06.2025 | ||
| Quarter-finals | Kovalik J. | Escoffier A. | 2:1 (6:4, 65:7, 7:67) | details | 23.06.2025 | ||
| 1/16-finals | Taberner C. | Kovalik J. | 2:0 (6:4, 6:0) | details | 17.06.2025 | ||
| 1/16-finals | Choinski J. | Kovalik J. | 2:0 (6:3, 6:4) | details | 10.06.2025 | ||
| 1/16-finals | Karol M. | Kovalik J. | 2:1 (6:2, 5:7, 7:60) | details | 03.06.2025 | ||
| 1/16-finals | Mena F. | Kovalik J. | 2:1 (6:2, 3:6, 6:1) | details | 28.05.2025 | ||
| Quarter-finals | Jianu F. C. | Kovalik J. | 2:1 (2:6, 7:64, 6:4) | details | 20.05.2025 | ||
| Semi-finals | Kovalik J. | Rinderknech A. | 1:2 (62:7, 6:2, 3:6) | details | 12.04.2025 | ||
| 1/16-finals | Kovalik J. | Hemery C. | 0:2 (5:7, 0:6) | details | 24.03.2025 | ||
| Quarter-finals | Dalla Valle E. | Kovalik J. | 2:1 (6:2, 3:6, 7:66) | details | 21.03.2025 | ||
| 1/8-finals | Piros Z. | Kovalik J. | 0:2 (4:6, 1:6) | details | 19.03.2025 | ||
| 1/16-finals | Dodig M. | Kovalik J. | 0:2 (5:7, 3:6) | details | 17.03.2025 | ||
| Semi-finals | Uchiyama Y. | Kovalik J. | 2:0 (6:4, 6:4) | details | 03.03.2025 | ||
| Semi-finals | Fucsovics M. | Kovalik J. | 2:0 (6:0, 6:1) | details | 22.02.2025 | ||
| Semi-finals | Kovalik J. | Kotov P. | 1:2 (5:7, 6:4, 4:6) | details | 15.02.2025 | ||
| Semi-finals | Kovalik J. | Watanuki Y. | 0:2 (5:7, 2:6) | details | 09.02.2025 | ||
| Ajdukovic D. | Kovalik J. | CAN. | details | 01.02.2025 | |||
| Prizmic D. | Kovalik J. | 2:0 (6:2, 6:2) | details | 31.01.2025 | |||
| 1/16-finals | Kukushkin M. | Kovalik J. | 2:1 (63:7, 6:3, 6:4) | details | 21.01.2025 | ||
| Final | Tien L. | Kovalik J. | 2:0 (6:3, 6:4) | details | 09.01.2025 | ||
| Semi-finals | Fellin P. O./Oradini G. | Kovalik J./Martin A. | 2:0 (6:3, 6:4) | details | 03.07.2026 | ||
| Quarter-finals | Kovalik J./Martin A. | Ferri L./Gandolfi G. | 2:0 (7:63, 6:4) | details | 02.07.2026 | ||
| 1/8-finals | Kovalik J./Martin A. | Belkovics A./Gubi T. | 2:0 (6:3, 6:1) | details | 02.07.2026 | ||
| Quarter-finals | Karol M./Serdarusic N. | Kovalik J./Martin A. | 2:0 (6:2, 6:2) | details | 11.06.2026 | ||
| 1/8-finals | Kovalik J./Martin A. | Krajci M./Lanik T. | 2:1 (4:6, 6:1, 10:4) | details | 10.06.2026 | ||
| 1/8-finals | Kovalik J./Serdarusic N. | Kolar Z./Oberleitner N. | 1:2 (6:4, 4:6, 7:10) | details | 18.03.2025 | ||