Stadium: Court 14 Round: 62
| Challenger Busan Qual | 2018/05/12 01:00 | Luke Saville v Daniel Yoo | 6-1,6-0 |
| Challenger Gimcheon Qual | 2018/05/05 01:30 | Daniel Yoo v Ben Patael | 3-6,2-6 |
| Challenger Seoul Qual | 2018/04/28 01:30 | Daniel Yoo v Ji Sung Nam | 2-6,2-6 |
| Challenger Gwangju Qual | 2017/09/16 01:30 | Woo Hyeok Jang v Daniel Yoo | 6-4,6-4 |
| ITF Korea F5 | 2017/06/29 04:50 | Daniel Yoo v Ku Keon Kang | 3-6,3-6 |
| ITF Korea F5 | 2017/06/28 04:55 | Daniel Yoo v Ki Su Jung | 6-0,6-1 |
| ITF Korea F4 | 2017/06/20 01:00 | Daniel Yoo v Hyung-Chan Lim | 6-2,6-2 |
| ITF Korea F3 | 2017/06/16 02:00 | Daniel Yoo v Hong Chung | 3-6,0-6 |
| ITF Korea F3 Qual | 2017/06/10 02:00 | Hyeong Jin Cho v Min Hyun Lee | 7-6,7-6 |
| ITF Korea F2 Qual | 2017/06/03 02:00 | Min Hyun Lee v Woo Hyeok Jang | 3-6,4-6 |
| Challenger Gimcheon Qual | 2017/04/29 04:30 | Ki Su Jung v Min Hyun Lee | 6-4,6-3 |
| ITF Korea F8 | 2016/09/04 04:30 | Hyun-Joon Kim v Min Hyun Lee | 4-6,7-6,6-1 |
| ITF Korea F8 | 2016/09/03 03:30 | Min Hyun Lee v Jia Qi Huang | 6-0,6-4 |