 USA: Chicago - Doubles - Main |
|---|
| Quarter-finals | Nam Ji S./Sitak A. | Harrison C./Sandgren T. | 0:2 (2:6, 1:6) | details | 13.07.2023 |
| 1/8-finals | Nam Ji S./Sitak A. | Puttergill C./Sinclair C. | 2:0 (6:3, 6:2) | details | 12.07.2023 |
| USA: Bloomfield Hills - Doubles - Main |
|---|
| Quarter-finals | Nam Ji S./Sitak A. | Harrison C./McHugh A. | 0:2 (63:7, 66:7) | details | 06.07.2023 |
| 1/8-finals | Nam Ji S./Sitak A. | DeMuth O./Martin A. | 2:1 (65:7, 6:1, 13:11) | details | 06.07.2023 |
 Colombia: Cali - Doubles - Main |
|---|
| Semi-finals | Andreozzi G./Rodriguez C. | Nam Ji S./Sitak A. | 2:0 (6:3, 6:3) | details | 24.06.2023 |
| Quarter-finals | Nam Ji S./Sitak A. | Heide G./Reis Da Silva J. | 2:0 (6:2, 6:4) | details | 22.06.2023 |
| 1/8-finals | Nam Ji S./Sitak A. | Rybakov A./Schoolkate T. | CAN. | details | 20.06.2023 |
| 1/8-finals | Nam Ji S./Sitak A. | Melzer G./Rehberg M. H. | 2:1 (1:6, 6:4, 13:11) | details | 20.06.2023 |
 Puerto Rico: Palmas Del Mar - Doubles - Main |
|---|
| Semi-finals | Matsui T./Uesugi K. | Nam Ji S./Sitak A. | 2:0 (6:4, 7:5) | details | 16.06.2023 |
| Quarter-finals | Alves M./Heide G. | Nam Ji S./Sitak A. | 1:2 (1:6, 7:64, 8:10) | details | 15.06.2023 |
| 1/8-finals | Diez S./Galarneau A. | Nam Ji S./Sitak A. | 0:2 (4:6, 5:7) | details | 14.06.2023 |
| USA: Tyler - Doubles - Main |
|---|
| 1/8-finals | Nam Ji S./Sitak A. | Collier R./Valiev I. | 0:2 (3:6, 4:6) | details | 08.06.2023 |
| USA: Little Rock - Doubles - Main |
|---|
| Final | Nam Ji S./Sitak A. | Galarneau A./Moreno De Alboran N. | 2:0 (6:4, 6:4) | details | 03.06.2023 |
| Semi-finals | Nam Ji S./Sitak A. | Lawson A./Pervolarakis M. | 2:0 (7:65, 6:2) | details | 03.06.2023 |
| Quarter-finals | Mansouri S./Statham J. R. | Nam Ji S./Sitak A. | 0:2 (4:6, 61:7) | details | 01.06.2023 |
| 1/8-finals | Kadhe A./Masur D. | Nam Ji S./Sitak A. | 1:2 (6:1, 63:7, 6:10) | details | 30.05.2023 |
