| ITF Korea F5 | 06/29 03:30 | 26 | Young Seok Kim v Min-Kyu Song | 6-3,6-2 | |
| ITF Korea F5 | 06/28 01:00 | 25 | Young Seok Kim v Shane Vinsant | 6-4,7-5 | |
| ITF Korea F4 | 06/24 03:35 | 28 | Young Seok Kim v Cheong-Eui Kim | 4-6,3-6 | |
| ITF Korea F4 | 06/23 02:00 | 27 | Jea Moon Lee v Young Seok Kim | 6-3,6-7,3-6 | |
| ITF Korea F4 | 06/21 02:00 | 26 | Woo-Ram Kim v Young Seok Kim | 3-6,3-6 | |
| ITF Korea F4 | 06/19 04:00 | 25 | Young Seok Kim v Yong-Kyu Lim | Retired | |
| ITF Korea F3 | 06/15 01:00 | 26 | Tae-Woo Lee v Young Seok Kim | 6-3,6-4 | |
| ITF Korea F3 | 06/13 02:00 | 25 | Young Seok Kim v Seong Chan Hong | 6-2,6-4 | |
| ITF Korea F2 | 06/07 04:10 | 25 | Young Seok Kim v Cheong-Eui Kim | 1-6,6-7 | |
| ITF Korea F1 | 05/31 01:00 | 25 | Young Seok Kim v Hong Chung | 1-6,4-6 | |
| Challenger Busan Qual | 05/13 02:00 | 45 | Young Seok Kim v Jea Moon Lee | 3-6,3-6 | |
| Challenger Seoul | 05/11 03:30 | 26 | Go Soeda v Young Seok Kim | 6-2,6-4 | |
| Challenger Seoul | 05/09 05:50 | 25 | Alexander Ward v Young Seok Kim | 3-6,4-6 | |
| Challenger Gimcheon Qual | 04/29 04:10 | 45 | Young Seok Kim v Hubert Hurkacz | 6-2,3-6,2-6 | |
| ITF Thailand F6 | 12/27 03:00 | 25 | Congsup Congcar v Young Seok Kim | 6-2,6-3 | |
| ITF Thailand F5 | 12/21 04:20 | 26 | Min Hyeok Cho v Young Seok Kim | 6-2,6-2 | |
| ITF Thailand F5 | 12/19 03:00 | 25 | Young Seok Kim v Yunseong Chung | 3-6,6-4,7-6 | |
| Others | 11/12 05:50 | 46 | Hiroka Kondo v Young Seok Kim | 6-4,6-4 | |
| Others | 11/12 00:30 | 45 | Masaki Sasai v Young Seok Kim | 1-6,5-7 | |
| Others | 11/05 03:45 | 45 | Shintaro Imai v Young Seok Kim | 6-1,6-2 | |
| ITF Vietnam F8 | 10/29 03:00 | 28 | Young Seok Kim v Enzo Couacaud | 4-6,1-6 | |
| ITF Vietnam F8 | 10/28 03:00 | 27 | Niki Kaliyanda Poonacha v Young Seok Kim | 4-6,3-6 | |
| ITF Vietnam F8 | 10/27 03:00 | 26 | Xiao Gong v Young Seok Kim | 5-7,3-6 | |
| ITF Vietnam F8 | 10/25 05:40 | 25 | Ju-Hae Moon v Young Seok Kim | 2-6,2-6 | |
| ITF Vietnam F7 | 10/17 03:00 | 25 | Young Seok Kim v Stefan Skadarka | 7-6,6-7,4-6 | |
| ITF Korea F8 | 09/08 03:00 | 27 | Young Seok Kim v Min-Kyu Song | 7-5,1-6,2-6 | |
| ITF Korea F8 | 09/07 03:55 | 26 | Young Seok Kim v Dong-Kyu Lee | 6-3,6-3 | |
| ITF Korea F8 | 09/06 02:55 | 25 | Young Seok Kim v Hiromasa Oku | 6-0,6-2 | |
| ITF Korea F7 | 08/29 02:30 | 25 | Tae-Woo Lee v Young Seok Kim | 6-2,6-3 | |
| ITF Korea F8 | 08/26 03:00 | 28 | Young Seok Kim v Ji Sung Nam | 2-6,3-6 |