Select tournament type
| Fonseca J. | Moutet C. | 3:1 (16:14, 13:20, 16:14, 19:10) | details | 18.07.2026 | |||
| Fonseca J. | Kyrgios N. | 0:3 (11:16, 10:17, 11:19) | details | 18.07.2026 | |||
| Fonseca J. | Griekspoor T. | 3:1 (9:19, 14:13, 17:10, 18:8) | details | 18.07.2026 | |||
| 1/16-finals | Safiullin R. | Fonseca J. | 3:0 (6:3, 6:3, 6:3) | details | 03.07.2026 | ||
| 1/32-finals | De Jong J. | Fonseca J. | 0:3 (1:6, 5:7, 4:6) | details | 01.07.2026 | ||
| 1/64-finals | Bautista-Agut R. | Fonseca J. | 0:3 (64:7, 4:6, 3:6) | details | 29.06.2026 | ||
| 1/8-finals | Hussey G. | Fonseca J. | CAN. | details | 24.06.2026 | ||
| 1/16-finals | Fonseca J. | Hanfmann Y. | 0:2 (2:6, 2:6) | details | 16.06.2026 | ||
| Quarter-finals | Mensik J. | Fonseca J. | 3:0 (6:4, 6:3, 7:63) | details | 02.06.2026 | ||
| 1/8-finals | Ruud C. | Fonseca J. | 1:3 (5:7, 68:7, 7:5, 2:6) | details | 31.05.2026 | ||
| 1/16-finals | Fonseca J. | Djokovic N. | 3:2 (4:6, 4:6, 6:3, 7:5, 7:5) | details | 29.05.2026 | ||
| 1/32-finals | Fonseca J. | Prizmic D. | 3:2 (3:6, 4:6, 6:3, 6:1, 6:2) | details | 27.05.2026 | ||
| 1/64-finals | Fonseca J. | Pavlovic L. | 3:0 (7:66, 6:4, 6:2) | details | 24.05.2026 | ||
| 1/16-finals | Hanfmann Y. | Fonseca J. | CAN. | details | 18.05.2026 | ||
| 1/32-finals | Medjedovic H. | Fonseca J. | 2:1 (3:6, 6:3, 7:61) | details | 09.05.2026 | ||
| 1/16-finals | Fonseca J. | Jodar R. | 1:2 (64:7, 6:4, 1:6) | details | 26.04.2026 | ||
| 1/32-finals | Fonseca J. | Cilic M. | WO. | details | 24.04.2026 | ||
| Quarter-finals | Fonseca J. | Shelton B. | 1:2 (3:6, 6:3, 3:6) | details | 17.04.2026 | ||
| 1/8-finals | Rinderknech A. | Fonseca J. | 0:2 (3:6, 2:6) | details | 15.04.2026 | ||
| 1/16-finals | Tabilo A. | Fonseca J. | 0:2 (61:7, 3:6) | details | 14.04.2026 | ||
| Quarter-finals | Fonseca J. | Zverev A. | 1:2 (5:7, 7:63, 3:6) | details | 10.04.2026 | ||
| 1/8-finals | Berrettini M. | Fonseca J. | 0:2 (3:6, 2:6) | details | 09.04.2026 | ||
| 1/16-finals | Fonseca J. | Rinderknech A. | 2:1 (7:5, 4:6, 6:3) | details | 08.04.2026 | ||
| 1/32-finals | Fonseca J. | Diallo G. | 2:0 (6:2, 6:3) | details | 06.04.2026 | ||
| 1/32-finals | Alcaraz C. | Fonseca J. | 2:0 (6:4, 6:4) | details | 21.03.2026 | ||
| 1/64-finals | Marozsan F. | Fonseca J. | 1:2 (4:6, 6:3, 2:6) | details | 19.03.2026 | ||
| 1/8-finals | Fonseca J. | Sinner J. | 0:2 (66:7, 64:7) | details | 11.03.2026 | ||
| 1/16-finals | Fonseca J. | Paul T. | 2:0 (6:2, 6:3) | details | 09.03.2026 | ||
| 1/32-finals | Khachanov K. | Fonseca J. | 1:2 (6:4, 67:7, 4:6) | details | 07.03.2026 | ||
| 1/64-finals | Fonseca J. | Collignon R. | 2:0 (7:62, 6:4) | details | 05.03.2026 | ||
| 1/8-finals | Fonseca J. | Buse I. | 1:2 (7:5, 3:6, 4:6) | details | 20.02.2026 | ||
| 1/16-finals | Fonseca J. | Monteiro T. | 2:0 (7:61, 6:1) | details | 17.02.2026 | ||
| 1/8-finals | Fonseca J. | Tabilo A. | 1:2 (3:6, 6:3, 5:7) | details | 11.02.2026 | ||
| 1/64-finals | Fonseca J. | Spizzirri E. | 1:3 (4:6, 6:2, 1:6, 2:6) | details | 20.01.2026 | ||
| 1/16-finals | Opelka R. | Fonseca J. | CAN. | details | 05.01.2026 | ||
| Alcaraz C. | Fonseca J. | 2:1 (7:5, 2:6, 10:8) | details | 09.12.2025 | |||
| 1/16-finals | Khachanov K. | Fonseca J. | 2:1 (6:1, 3:6, 6:3) | details | 29.10.2025 | ||
| 1/32-finals | Shapovalov D. | Fonseca J. | 1:2 (7:5, 4:6, 3:6) | details | 28.10.2025 | ||
| Final | Davidovich Fokina A. | Fonseca J. | 0:2 (3:6, 4:6) | details | 26.10.2025 | ||
| Final | Arribage T./Olivetti A. | Altmaier D./Fonseca J. | 2:0 (7:62, 6:4) | details | 21.06.2026 | ||
| Semi-finals | Cobolli F./Shelton B. | Altmaier D./Fonseca J. | 1:2 (66:7, 7:614, 9:11) | details | 20.06.2026 | ||
| Quarter-finals | Altmaier D./Fonseca J. | Doumbia S./Polmans M. | 2:0 (6:4, 7:66) | details | 18.06.2026 | ||
| 1/8-finals | Altmaier D./Fonseca J. | Quinn E./Tien L. | 2:0 (6:2, 7:61) | details | 16.06.2026 | ||
| Final | Galloway R./Peers J. | Altmaier D./Fonseca J. | 2:0 (7:5, 6:2) | details | 14.06.2026 | ||
| Semi-finals | Altmaier D./Fonseca J. | Nouza P./Oberleitner N. | 2:0 (7:65, 7:62) | details | 13.06.2026 | ||
| Final | Frantzen C./Haase R. | Fonseca J./Melo M. | 1:2 (6:4, 3:6, 8:10) | details | 22.02.2026 | ||
| Semi-finals | Schnaitter J./Wallner M. | Fonseca J./Melo M. | 1:2 (2:6, 6:2, 11:13) | details | 21.02.2026 | ||
| Quarter-finals | Fonseca J./Melo M. | Gonzalez M./Molteni A. | 2:0 (6:4, 6:0) | details | 18.02.2026 | ||
| 1/8-finals | Fonseca J./Melo M. | Burruchaga R. A./Pellegrino A. | 2:0 (6:4, 6:4) | details | 16.02.2026 | ||
| 1/8-finals | Fonseca J./Melo M. | Dzumhur D./Muller A. | CAN. | details | 16.02.2026 | ||