Round: 60 Ground: Clay
| ITF USA F30 | 2017/09/09 16:00 | Strong Kirchheimer v Gustavo De O Cruz | 6-3,6-4 |
| ITF Turkey F13 | 2017/04/02 07:30 | Juan Ignacio Ameal v Gustavo De O Cruz | 6-2,1-6,7-5 |
| ITF Turkey F13 | 2017/04/01 07:00 | Arvid Nordquist v Gustavo De O Cruz | 4-6,2-6 |
| ITF Turkey F12 | 2017/03/26 07:00 | Gustavo De O Cruz v Federico Maccari | 1-6,6-7 |
| ITF Turkey F11 | 2017/03/18 07:00 | Federico Maccari v Gustavo De O Cruz | 6-3,3-6,6-3 |
| ITF Turkey F10 | 2017/03/13 07:00 | Gustavo De O Cruz v Juan Ignacio Ameal | 4-6,7-5,0-6 |
| ITF Turkey F10 | 2017/03/11 07:00 | Gustavo De O Cruz v Nenad Vladusic | 3-6,6-3,6-4 |
| ITF Turkey F13 | 2017/03/05 07:00 | Gustavo De O Cruz v Yan Sabanin | 3-6,4-6 |
| ITF USA F30 | 2017/09/08 20:30 | Ku Keon Kang v Austin Rapp | 4-6,2-6 |
| ITF Korea F5 | 2017/06/30 04:20 | Jae Hwan Kim v Ku Keon Kang | 6-2,1-6,7-6 |
| ITF Korea F5 | 2017/06/29 04:50 | Daniel Yoo v Ku Keon Kang | 3-6,3-6 |
| ITF Korea F3 | 2017/06/15 03:00 | Cheong-Eui Kim v Ku Keon Kang | 6-3,6-1 |
| ITF Korea F3 | 2017/06/14 05:25 | Hyun-Joon Kim v Ku Keon Kang | 6-3,3-6,5-7 |
| ITF Korea F3 Qual | 2017/06/12 03:00 | Ku Keon Kang v Min Gyeom Kim | 6-0,6-0 |
| ITF Korea F3 Qual | 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 Dae-Hee Lee | 3-6,6-1,3-6 |