 World: Davis Cup - World Group - Doubles - Qualification |
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| | Galarneau A./Pospisil V. | Nam Ji S./Song M.-K. | 1:2 (4:6, 7:64, 3:6) | details | 03.02.2024 |
 Asia: Asian Games - Doubles - Main |
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| Quarter-finals | Nam Ji S./Song M.-K. | Isaro P./Jones M. | 1:2 (4:6, 6:3, 7:10) | details | 27.09.2023 |
| 1/8-finals | Nam Ji S./Song M.-K. | Lomakin G./Popko D. | 2:1 (6:3, 5:7, 10:7) | details | 25.09.2023 |
| 1/16-finals | Nam Ji S./Song M.-K. | Ly Nam H./Nguyen P. V. | 2:0 (6:4, 7:5) | details | 24.09.2023 |
| World: Davis Cup - World Group - Doubles - Main |
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| | Granollers M./Ramos A. | Nam Ji S./Song M.-K. | 1:2 (7:62, 66:7, 8:10) | details | 17.09.2023 |
| | Mensik J./Pavlasek A. | Nam Ji S./Song M.-K. | 2:1 (3:6, 7:65, 6:4) | details | 14.09.2023 |
| | Cacic N./Kecmanovic M. | Nam Ji S./Song M.-K. | 2:1 (3:6, 6:4, 7:65) | details | 12.09.2023 |
 Portugal: Porto - Doubles - Main |
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| 1/8-finals | Escoffier A./Paris J. | Nam Ji S./Song M.-K. | 2:0 (6:1, 6:3) | details | 02.08.2023 |
 Spain: Segovia - Doubles - Main |
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| Semi-finals | Added D./Herbert P. | Nam Ji S./Song M.-K. | 2:0 (6:2, 6:3) | details | 28.07.2023 |
| Quarter-finals | Stepanov R./Whiting T. | Nam Ji S./Song M.-K. | 0:2 (67:7, 5:7) | details | 27.07.2023 |
| 1/8-finals | Bellucci M./Bouquier A. | Nam Ji S./Song M.-K. | 0:2 (4:6, 4:6) | details | 25.07.2023 |
| Spain: Pozoblanco - Doubles - Main |
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| Final | Nam Ji S./Song M.-K. | Johnson L./Lock B. | 2:1 (2:6, 6:4, 10:8) | details | 22.07.2023 |
| Semi-finals | Nam Ji S./Song M.-K. | Added D./Herbert P. | 2:0 (7:65, 6:3) | details | 21.07.2023 |
| Quarter-finals | Nam Ji S./Song M.-K. | Echeverria J./Montes-De La Torre I. | 2:0 (6:4, 6:3) | details | 20.07.2023 |
| 1/8-finals | Nam Ji S./Song M.-K. | Barroso Campos A./Llamas Ruiz P. | 2:1 (6:3, 4:6, 11:9) | details | 19.07.2023 |
 South Korea: Seoul - Doubles - Main |
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| 1/8-finals | Hijikata R./Polmans M. | Nam Ji S./Song M.-K. | 2:0 (6:3, 6:4) | details | 26.04.2023 |
| Spain: Madrid - Doubles - Main |
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| 1/8-finals | Barrientos N./Behar A. | Nam Ji S./Song M.-K. | 2:1 (7:64, 3:6, 10:3) | details | 11.04.2023 |
| Spain: Murcia - Doubles - Main |
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| 1/8-finals | Nam Ji S./Song M.-K. | Rincon D./Shelbayh A. | 1:2 (7:5, 4:6, 4:10) | details | 05.04.2023 |
| 1/8-finals | Nam Ji S./Song M.-K. | Butvilas E./Martinez Gomez P. | CAN. | details | 05.04.2023 |
 France: Lille - Doubles - Main |
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| 1/8-finals | Added D./Olivetti A. | Nam Ji S./Song M.-K. | 2:0 (6:2, 7:5) | details | 28.03.2023 |
 India: Bengaluru - Doubles - Main |
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| 1/8-finals | Lock B./Santillan A. | Nam Ji S./Song M.-K. | 2:1 (6:3, 3:6, 10:5) | details | 21.02.2023 |
| India: Chennai - Doubles - Main |
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| Quarter-finals | Clarke J./Kadhe A. | Nam Ji S./Song M.-K. | 2:1 (1:6, 7:68, 10:8) | details | 16.02.2023 |
| 1/8-finals | Ramanathan R./Vardhan V. | Nam Ji S./Song M.-K. | 1:2 (6:1, 64:7, 5:10) | details | 15.02.2023 |
| World: Davis Cup - World Group - Doubles - Qualification |
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| | Nam Ji S./Song M.-K. | Gille S./Vliegen J. | 2:0 (7:63, 7:65) | details | 05.02.2023 |
 Thailand: Nonthaburi 3 - Doubles - Main |
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| Final | Nam Ji S./Song M.-K. | Choinski J./Parker S. | 2:0 (6:4, 6:4) | details | 21.01.2023 |
| Semi-finals | Nam Ji S./Song M.-K. | Ionel N. D./Zuk K. | 2:0 (7:5, 7:63) | details | 20.01.2023 |
| Quarter-finals | Nam Ji S./Song M.-K. | Donskoy E./Yevseyev D. | WO. | details | 19.01.2023 |
| 1/8-finals | Nam Ji S./Song M.-K. | Alcantara F. C./Moriya H. | 2:0 (6:4, 7:60) | details | 18.01.2023 |
| Thailand: Nonthaburi 2 - Doubles - Main |
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| Semi-finals | Nam Ji S./Song M.-K. | Rungkat C./Santillan A. | 1:2 (1:6, 7:66, 4:10) | details | 13.01.2023 |
| Quarter-finals | Nam Ji S./Song M.-K. | Sanchez L./Stevenson K. | 2:0 (7:66, 6:3) | details | 12.01.2023 |
| 1/8-finals | Nam Ji S./Song M.-K. | Matsui T./Uesugi K. | 2:0 (6:2, 6:4) | details | 11.01.2023 |
| Thailand: Nonthaburi - Doubles - Main |
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| Semi-finals | Nam Ji S./Song M.-K. | Gengel M./Pavlasek A. | 0:2 (4:6, 3:6) | details | 06.01.2023 |
| Quarter-finals | Tirante T. A./Trungelliti M. | Nam Ji S./Song M.-K. | WO. | details | 05.01.2023 |
| 1/8-finals | Kelly D./Purcell M. | Nam Ji S./Song M.-K. | 0:2 (60:7, 62:7) | details | 04.01.2023 |
 Japan: Kobe - Doubles - Main |
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| Quarter-finals | Nam Ji S./Song M.-K. | Matsui T./Uesugi K. | 0:2 (5:7, 3:6) | details | 17.11.2022 |
| 1/8-finals | Nam Ji S./Song M.-K. | Ionel N. D./Jianu F. C. | 2:0 (6:3, 6:2) | details | 15.11.2022 |
| Japan: Matsuyama - Doubles - Main |
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| Quarter-finals | Nam Ji S./Song M.-K. | Sweeny D./Tu L. | 0:2 (3:6, 4:6) | details | 10.11.2022 |
| 1/8-finals | Nam Ji S./Song M.-K. | Kono Y./Kusuhara Y. | 2:0 (6:3, 6:4) | details | 08.11.2022 |
| Japan: Yokohama - Doubles - Main |
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| Quarter-finals | Fujiwara T./Imamura M. | Nam Ji S./Song M.-K. | 2:1 (3:6, 6:2, 10:7) | details | 03.11.2022 |
| 1/8-finals | Matsui T./Uesugi K. | Nam Ji S./Song M.-K. | 0:2 (3:6, 67:7) | details | 02.11.2022 |
| South Korea: Busan - Doubles - Main |
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| Final | Nam Ji S./Song M.-K. | Polmans M./Purcell M. | 1:2 (7:65, 2:6, 10:12) | details | 23.10.2022 |
| Semi-finals | Bhambri Y./Myneni S. | Nam Ji S./Song M.-K. | 0:2 (3:6, 1:6) | details | 22.10.2022 |
| Quarter-finals | Mansouri S./Neuchrist M. | Nam Ji S./Song M.-K. | 1:2 (7:5, 4:6, 10:12) | details | 20.10.2022 |
| 1/8-finals | Hijikata R./Tu L. | Nam Ji S./Song M.-K. | CAN. | details | 19.10.2022 |
| South Korea: Seoul - Doubles - Main |
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| Quarter-finals | Nam Ji S./Song M.-K. | Barrientos N./Reyes-Varela M. A. | 1:2 (5:7, 6:3, 7:10) | details | 30.09.2022 |
| 1/8-finals | Galloway R./Lawson A. | Nam Ji S./Song M.-K. | 1:2 (6:3, 3:6, 9:11) | details | 28.09.2022 |
