| ITF Korea F5 | 2017/06/28 04:55 | Yoo, Daniel v Jung, Ki-Su | 6-0,6-1 |
| ITF Korea F4 | 2017/06/20 01:00 | Yoo, Daniel v Lim, Hyung-Chan | 6-2,6-2 |
| ITF Korea F3 | 2017/06/16 02:00 | Yoo, Daniel v Hong Chung | 3-6,0-6 |
| ITF Korea F3 | 2017/06/15 01:00 | Yunseong Chung v Yoo, Daniel | 5-7,4-6 |
| ITF Korea F3 | 2017/06/14 01:00 | Jae Hwan Kim v Yoo, Daniel | 5-7,5-7 |
| ITF Korea F2 | 2017/06/07 03:50 | Song, Min-Kyu v Yoo, Daniel | 3-6,7-6,6-4 |
| ITF Korea F1 | 2017/05/31 01:00 | Yoo, Daniel v Na, Jung-Woong | 3-6,3-6 |
| ITF USA F5 | 2017/01/21 19:00 | Yoo, Daniel v de Paula, Fabiano | 6-1,3-6,6-7 |
| ITF Korea F3 | 2017/06/15 03:00 | Kim, Cheong-Eui v Ku Keon Kang | 6-3,6-1 |
| ITF Korea F3 | 2017/06/14 05:25 | Kim, Hyun-Joon v Ku Keon Kang | 6-3,3-6,5-7 |
| Korea F3, Singles Qualifying | 2017/06/12 03:00 | Ku Keon Kang v Kim, Min Gyeom | 6-0,6-0 |
| Korea F3, Singles Qualifying | 2017/06/11 04:30 | Ku Keon Kang v Geun Jun Kim | 6-2,6-2 |
| ITF Korea F2 | 2017/06/07 03:35 | Ku Keon Kang v Lee, Dae-Hee | 3-6,6-1,3-6 |
| ITF Korea F2 Qual | 2017/06/05 03:00 | Ku Keon Kang v Lee, Seounghun | 5-7,6-2,6-4 |
| ITF Korea F2 Qual | 2017/06/03 01:00 | Ku Keon Kang v Cho, Gwang Hyeon | 6-0,6-1 |
| ITF Korea F1 | 2017/06/01 01:00 | Noh, Sang-Woo v Ku Keon Kang | 7-5,7-6 |