 Chile: Santiago - Singles - Qualification |
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| Final | Meligeni Alves F. | Varillas J. P. | 2:0 (6:4, 6:2) | details | 23.02.2025 |
| Semi-finals | Nava E. | Varillas J. P. | 0:2 (3:6, 4:6) | details | 22.02.2025 |
 Uruguay: Punta Del Este - Singles - Main |
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| 1/16-finals | Collarini A. | Varillas J. P. | CAN. | details | 21.01.2025 |
 Argentina: Buenos Aires 2 - Singles - Main |
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| Final | Vallejo D. | Varillas J. P. | 0:2 (4:6, 4:6) | details | 20.01.2025 |
| Semi-finals | Varillas J. P. | Bueno G. | 2:0 (7:64, 6:4) | details | 18.01.2025 |
| Quarter-finals | Nava E. | Varillas J. P. | 0:2 (4:6, 5:7) | details | 17.01.2025 |
| 1/8-finals | Kicker N. | Varillas J. P. | 0:2 (66:7, 3:6) | details | 16.01.2025 |
| 1/16-finals | Prado Angelo J. C. | Varillas J. P. | 1:2 (7:64, 5:7, 4:6) | details | 14.01.2025 |
 Australia: Australian Open - Singles - Qualification |
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| Quarter-finals | Varillas J. P. | Moro Canas A. | 1:2 (7:63, 66:7, 4:6) | details | 06.01.2025 |
 Peru: Lima 2 - Singles - Main |
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| 1/16-finals | Varillas J. P. | Dellien Velasco M. A. | 0:2 (4:6, 4:6) | details | 04.11.2024 |
 Ecuador: Guayaquil - Singles - Main |
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| 1/8-finals | Andrade A. | Varillas J. P. | 2:0 (7:63, 6:2) | details | 31.10.2024 |
| 1/16-finals | Varillas J. P. | Buse I. | 2:1 (5:7, 6:4, 6:1) | details | 28.10.2024 |
 Brazil: Curitiba - Singles - Main |
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| 1/16-finals | Cerundolo J. M. | Varillas J. P. | 2:0 (6:3, 7:5) | details | 21.10.2024 |
| Brazil: Campinas - Singles - Main |
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| Quarter-finals | Varillas J. P. | Guillen Meza A. | 1:2 (3:6, 6:4, 4:6) | details | 18.10.2024 |
| 1/8-finals | Sakamoto P. | Varillas J. P. | 1:2 (5:7, 6:4, 4:6) | details | 17.10.2024 |
| 1/16-finals | Varillas J. P. | Bueno G. | 2:1 (4:6, 6:4, 6:3) | details | 14.10.2024 |
| Argentina: Villa Maria - Singles - Main |
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| 1/16-finals | Varillas J. P. | Collarini A. | 1:2 (6:2, 5:7, 3:6) | details | 09.10.2024 |
| Argentina: Buenos Aires 3 - Singles - Main |
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| Quarter-finals | Varillas J. P. | Comesana F. | 1:2 (4:6, 7:66, 5:7) | details | 04.10.2024 |
| 1/8-finals | Burruchaga R. A. | Varillas J. P. | 0:2 (1:6, 3:6) | details | 03.10.2024 |
| 1/16-finals | Sakamoto P. | Varillas J. P. | 0:2 (64:7, 2:6) | details | 01.10.2024 |
 World: Davis Cup - World Group I - Singles - Main |
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| | Kym J. | Varillas J. P. | CAN. | details | 14.09.2024 |
| | Huesler M. | Varillas J. P. | 2:0 (6:3, 6:4) | details | 13.09.2024 |
 Italy: Genova - Singles - Main |
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| 1/8-finals | Nishikori K. | Varillas J. P. | 2:0 (6:2, 6:3) | details | 05.09.2024 |
| 1/16-finals | Cadenasso G. | Varillas J. P. | 1:2 (6:4, 5:7, 1:6) | details | 03.09.2024 |
| Italy: Como - Singles - Main |
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| 1/16-finals | Varillas J. P. | Misolic F. | CAN. | details | 27.08.2024 |
 USA: US Open - Singles - Qualification |
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| Quarter-finals | Grenier H. | Varillas J. P. | 2:0 (6:0, 6:4) | details | 19.08.2024 |
 Switzerland: Zug - Singles - Main |
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| 1/8-finals | Bernet H. | Varillas J. P. | 2:0 (7:5, 6:3) | details | 24.07.2024 |
| 1/16-finals | Bertola R. | Varillas J. P. | 0:2 (5:7, 4:6) | details | 23.07.2024 |
| Switzerland: Gstaad - Singles - Main |
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| 1/8-finals | Varillas J. P. | Fognini F. | 1:2 (6:3, 65:7, 5:7) | details | 17.07.2024 |
| 1/16-finals | Thiem D. | Varillas J. P. | 1:2 (3:6, 7:5, 64:7) | details | 15.07.2024 |
| Switzerland: Gstaad - Singles - Qualification |
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| Final | Varillas J. P. | Kym J. | 2:1 (7:64, 4:6, 6:1) | details | 14.07.2024 |
| Semi-finals | Varillas J. P. | Tabur C. | 2:0 (6:4, 6:2) | details | 13.07.2024 |
 Germany: Braunschweig - Singles - Main |
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| 1/8-finals | Galan D. E. | Varillas J. P. | 2:0 (7:62, 6:4) | details | 10.07.2024 |
| 1/16-finals | Varillas J. P. | Fanselow S. | 2:0 (7:62, 6:3) | details | 09.07.2024 |
| Italy: Modena - Singles - Main |
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| Quarter-finals | Varillas J. P. | Collarini A. | 1:2 (4:6, 6:4, 5:7) | details | 04.07.2024 |
| 1/8-finals | Varillas J. P. | Cecchinato M. | 2:0 (6:4, 7:61) | details | 03.07.2024 |
| 1/16-finals | Varillas J. P. | Prizmic D. | 2:0 (6:3, 6:1) | details | 01.07.2024 |
| Italy: Milan - Singles - Main |
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| 1/8-finals | Moller E. | Varillas J. P. | 2:0 (6:3, 6:1) | details | 27.06.2024 |
| 1/16-finals | Debru G. | Varillas J. P. | 1:2 (4:6, 6:4, 3:6) | details | 26.06.2024 |
| Italy: Sassuolo - Singles - Main |
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| 1/16-finals | Varillas J. P. | Bonadio R. | 1:2 (6:2, 4:6, 4:6) | details | 18.06.2024 |
 France: French Open - Singles - Qualification |
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| Quarter-finals | Varillas J. P. | Trungelliti M. | 0:2 (0:6, 65:7) | details | 20.05.2024 |
| Italy: Turin 2 - Singles - Main |
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| 1/16-finals | Goffin D. | Varillas J. P. | 2:0 (7:5, 6:4) | details | 17.05.2024 |
| Italy: Rome - Singles - Qualification |
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| Semi-finals | Moreno De Alboran N. | Varillas J. P. | 2:0 (6:4, 7:5) | details | 06.05.2024 |
| Italy: Cagliari - Singles - Main |
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| 1/16-finals | Varillas J. P. | Nishioka Y. | 0:2 (2:6, 4:6) | details | 30.04.2024 |
| USA: Sarasota - Singles - Main |
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| 1/8-finals | Hemery C. | Varillas J. P. | 2:1 (5:7, 6:4, 7:66) | details | 11.04.2024 |
| 1/16-finals | Kuzuhara B. | Varillas J. P. | 0:2 (0:6, 3:6) | details | 10.04.2024 |
| USA: Houston - Singles - Main |
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| 1/16-finals | Mmoh M. | Varillas J. P. | 2:0 (6:2, 7:64) | details | 02.04.2024 |
| Brazil: Sao Leopoldo - Singles - Main |
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| Semi-finals | Varillas J. P. | Couacaud E. | 1:2 (6:2, 4:6, 62:7) | details | 30.03.2024 |
| Quarter-finals | Varillas J. P. | Oliveira G. | 2:0 (6:4, 7:64) | details | 29.03.2024 |
| 1/8-finals | Varillas J. P. | Rodriguez L. J. | 2:1 (7:62, 5:7, 6:3) | details | 27.03.2024 |