Stadium: Court 7 Round: 62
| ITF Korea F4 | 2018/08/11 01:00 | Kim, Yu-Seob v Yoo, Daniel | 1-6,0-6 |
| ITF Korea F2 | 2018/06/11 03:30 | Yoo, Daniel v Kim, Yu-Seob | 7-5,6-4 |
| ITF Korea F2 | 2018/06/09 02:00 | Kim, Byeonghun v Kim, Yu-Seob | 2-6,6-3,1-6 |
| ITF Korea F1 | 2018/06/03 02:00 | Park, Jun Sang v Kim, Yu-Seob | 5-7,6-3,6-2 |
| ITF Thailand F7 Qual | 2017/09/30 02:30 | Kim, Yu-Seob v Tanthaseraneewat, Suthinan | 2-6,2-6 |
| Korea F3, Singles Qualifying | 2017/06/10 03:00 | Kim, Yu-Seob v Kim, Woo-Ram | 2-6,2-6 |
| ITF Korea F2 Qual | 2017/06/04 04:30 | Kim, Yu-Seob v Jeong, In Kyo | 3-6,5-7 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Kim, Yu-Seob v Kim, Sung Hun | 6-1,6-4 |
| ITF Korea F4 | 2018/08/15 01:00 | Sungbeen Sim v Jae Hwan Kim | 2-6,0-6 |
| ITF Korea F4 | 2018/08/14 02:30 | Alexis Canter v Sungbeen Sim | 3-6,5-7 |
| ITF Korea F4 | 2018/08/12 02:00 | Kang, Dong Woon v Sungbeen Sim | 0-6,6-1,0-6 |
| ITF Korea F5 | 2017/06/27 01:30 | Sungbeen Sim v Kim, Dong Ju | 3-6,6-3,2-6 |
| ITF Korea F5 | 2017/06/25 03:00 | Tagashira, Kento v Sungbeen Sim | 4-6,5-7 |
| ITF Korea F4 | 2017/06/18 02:00 | Kim, Hyeong Don v Sungbeen Sim | 6-4,6-7,6-2 |
| ITF Korea F1 Qual | 2017/05/29 02:55 | Sungbeen Sim v Sin, Dong-Hak | 3-6,0-6 |
| ITF Korea F1 Qual | 2017/05/28 01:00 | Kim, Hyun-Joon v Sungbeen Sim | 4-6,2-6 |