USA: Delray Beach - Singles - Qualification |
| Semi-finals | Sakamoto P. | Young D. | 1:2 (6:3, 4:6, 2:6) | details | 05.01.2021 |
Brazil: Campinas - Singles - Main |
| 1/16-finals | Cerundolo F. | Sakamoto P. | 2:0 (6:1, 6:3) | details | 01.12.2020 |
Brazil: Sao Paulo - Singles - Main |
| Semi-finals | Sakamoto P. | Meligeni Rodrigues Alves F. | 0:2 (2:6, 4:6) | details | 28.11.2020 |
| Quarter-finals | Janvier M. | Sakamoto P. | 1:2 (2:6, 6:3, 1:6) | details | 27.11.2020 |
| 1/8-finals | Sakamoto P. | Ficovich J. P. | 2:0 (7:64, 7:5) | details | 25.11.2020 |
| 1/16-finals | Sakamoto P. | Marcondes I. | 2:1 (6:1, 67:7, 7:5) | details | 23.11.2020 |
Ecuador: Guayaquil - Singles - Main |
| 1/16-finals | Cerundolo F. | Sakamoto P. | 2:0 (6:3, 6:3) | details | 16.11.2020 |
Italy: Forli - Singles - Main |
| 1/8-finals | Sakamoto P. | Ritschard A. | 1:2 (7:5, 3:6, 1:6) | details | 23.09.2020 |
| 1/16-finals | Vavassori A. | Sakamoto P. | 1:2 (6:4, 65:7, 3:6) | details | 21.09.2020 |
France: M25+H Plaisir - Singles - Main |
| 1/8-finals | Mertens Y. | Sakamoto P. | 2:0 (6:1, 6:3) | details | 17.09.2020 |
| 1/16-finals | Rodriguez C. | Sakamoto P. | 0:2 (2:6, 64:7) | details | 16.09.2020 |
Chile: Santiago - Singles - Qualification |
| Final | Horansky F. | Sakamoto P. | 2:1 (7:64, 61:7, 6:4) | details | 23.02.2020 |
| Semi-finals | Matos R. | Sakamoto P. | CAN. | details | 22.02.2020 |
| Semi-finals | Romboli F. | Sakamoto P. | 0:2 (1:6, 2:6) | details | 22.02.2020 |
Mexico: Morelos - Singles - Main |
| 1/16-finals | Polansky P. | Sakamoto P. | 2:0 (6:4, 6:2) | details | 18.02.2020 |
| 1/32-finals | Sakamoto P. | Gomez-Herrera C. | 2:0 (7:65, 6:2) | details | 17.02.2020 |
Peru: M25 Lima 2 - Singles - Main |
| Semi-finals | Sakamoto P. | Arguello F. | 1:2 (6:3, 4:6, 3:6) | details | 15.02.2020 |
| Quarter-finals | Sakamoto P. | Villanueva G. | 2:0 (6:3, 6:4) | details | 14.02.2020 |
| 1/8-finals | Sakamoto P. | Ugo Carabelli C. | 2:0 (6:3, 7:60) | details | 13.02.2020 |
| 1/16-finals | Sakamoto P. | Pena Lopez M. | 2:0 (6:2, 6:1) | details | 11.02.2020 |
Peru: M25 Lima - Singles - Main |
| Semi-finals | Barrios T. | Sakamoto P. | 2:0 (6:2, 6:2) | details | 08.02.2020 |
| Quarter-finals | Pena Lopez M. | Sakamoto P. | 1:2 (3:6, 6:4, 2:6) | details | 07.02.2020 |
| 1/8-finals | Zeballos F. | Sakamoto P. | 0:2 (5:7, 4:6) | details | 06.02.2020 |
| 1/16-finals | Rodriguez Taverna S. | Sakamoto P. | 0:2 (1:6, 4:6) | details | 05.02.2020 |
Uruguay: Punta Del Este - Singles - Main |
| 1/8-finals | Blancaneaux G. | Sakamoto P. | 1:1 RET. (5:7, 6:0, 5:0) | details | 30.01.2020 |
| 1/16-finals | Sakamoto P. | Domingues J. | 2:0 (7:64, 6:2) | details | 28.01.2020 |
| 1/32-finals | Sakamoto P. | Troche E. | 2:0 (6:2, 6:0) | details | 27.01.2020 |
| 1/32-finals | Sakamoto P. | Lama G. | CAN. | details | 27.01.2020 |
USA: M25 Rancho Santa Fe - Singles - Main |
| 1/8-finals | Ritschard A. | Sakamoto P. | 2:1 (6:1, 3:6, 6:3) | details | 16.01.2020 |
| 1/16-finals | Leshem E. | Sakamoto P. | 0:2 (5:7, 1:6) | details | 15.01.2020 |
USA: Ann Arbor - Singles - Main |
| 1/8-finals | Sakamoto P. | Leshem E. | 1:2 (6:4, 3:6, 5:7) | details | 09.01.2020 |
| 1/16-finals | Sakamoto P. | Zakharov A. | 2:0 (6:2, 7:67) | details | 07.01.2020 |
USA: Naples 3 - Singles - Main |
| 1/16-finals | Sakamoto P. | Damm M. | 0:2 (4:6, 4:6) | details | 20.11.2019 |
USA: Orlando 2 - Singles - Main |
| Final | Alvarez N. | Sakamoto P. | 2:1 (3:6, 6:2, 6:1) | details | 17.11.2019 |
| Semi-finals | Etcheverry T. M. | Sakamoto P. | 1:2 (6:4, 1:6, 2:6) | details | 16.11.2019 |
| Quarter-finals | Moundir A. | Sakamoto P. | 1:2 (6:3, 3:6, 4:6) | details | 15.11.2019 |
| 1/8-finals | Andreev A. | Sakamoto P. | 0:2 (4:6, 2:6) | details | 14.11.2019 |
| 1/16-finals | Olivares J. | Sakamoto P. | 0:2 (2:6, 3:6) | details | 12.11.2019 |
Uruguay: Montevideo - Singles - Main |
| 1/16-finals | Sakamoto P. | Martin A. | 0:2 (2:6, 2:6) | details | 06.11.2019 |
| 1/32-finals | Luz O. | Sakamoto P. | 0:2 (4:6, 3:6) | details | 05.11.2019 |