| 2024-09-13 | Davis Cup WG1 R1: POL vs KOR | Hard | RR | 141 |  Seongchan Hong | 173 |  Maks Kasnikowski | 7-6(8) 6-2 | H2H | 3 | - | - | - | - | - | - | - |
| 2024-07-29 | Washington | Hard | R16 | 60 |  Alex Michelsen | 175 | Seongchan Hong | 6-3 6-3 | H2H | 3 | 80 | 1 | 2 | 56.9% | 78.8% | 60.0% | 2/2 |
| 2024-07-29 | Washington | Hard | R32 | 175 | Seongchan Hong | 21 |  Karen Khachanov | 6-2 6-4 | H2H | 3 | 70 | 6 | 1 | 65.3% | 78.1% | 76.5% | 1/1 |
| 2024-07-29 | Washington | Hard | R64 | 175 | Seongchan Hong | 89 |  Adam Walton | 7-6(6) 7-6(4) | H2H | 3 | 123 | 6 | 1 | 61.8% | 72.7% | 64.7% | 8/9 |
| 2024-03-04 | Indian Wells Masters | Hard | R128 | 81 |  Jakub Mensik (WC) | 227 | Seongchan Hong (Q) | 6-3 6-4 | H2H | 3 | 79 | 7 | 2 | 48.3% | 82.8% | 48.4% | 5/7 |
| 2024-02-02 | Davis Cup QLS R1: CAN vs KOR | Hard | RR | 486 |  Vasek Pospisil | 224 | Seongchan Hong | 6-4 6-3 | H2H | 3 | 108 | 6 | 5 | 59.7% | 75.0% | 40.7% | 3/5 |
| 2024-02-02 | Davis Cup QLS R1: CAN vs KOR | Hard | RR | 132 | Gabriel Diallo | 224 | Seongchan Hong | 7-5 4-6 6-1 | H2H | 3 | 153 | 9 | 1 | 74.7% | 75.8% | 57.1% | 2/4 |
| 2023-09-12 | Davis Cup Finals RR: SRB vs KOR | Hard | RR | 52 |  Dusan Lajovic | 194 | Seongchan Hong | 6-4 7-6(3) | H2H | 3 | - | 3 | 3 | 73.5% | 73.8% | 59.1% | 3/3 |
| 2023-09-14 | Davis Cup Finals RR: CZE vs KOR | Hard | RR | 119 | Tomas Machac | 194 | Seongchan Hong | 7-6(8) 4-6 6-2 | H2H | 3 | - | 11 | 2 | 54.3% | 84.0% | 61.9% | 2/3 |
| 2023-09-17 | Davis Cup Finals RR: ESP vs KOR | Hard | RR | 74 |  Bernabe Zapata Miralles | 195 | Seongchan Hong | 6-4 7-5 | H2H | 3 | - | 1 | 1 | 59.0% | 75.0% | 48.0% | 2/5 |
