Stadium: Hard Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF Turkey F6 | 2018/02/13 07:00 | Kazuki Shimizu v Juan Pablo Varillas | 6-7,4-6 |
| ITF Turkey F6 | 2018/02/12 09:00 | Kazuki Shimizu v Zlatan Palazov | 6-0,6-4 |
| ITF Turkey F6 | 2018/02/11 07:00 | Cheong Hwi Kim v Kazuki Shimizu | 5-7,0-6 |
| ITF Turkey F6 | 2018/02/10 09:00 | Osmancan Soyler v Kazuki Shimizu | 0-6,2-6 |
| ITF Guam F1 | 2017/06/17 01:30 | Kazuki Shimizu v Yuki Nakamura | 4-6,6-2,4-6 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Hiroki Horikiri v Kazuki Shimizu | 4-6,6-3,6-4 |
| ITF Japan F5 | 2017/04/01 02:00 | Katsuki Nagao v Kazuki Shimizu | 6-3,6-3 |
| ITF Japan F1 | 2017/03/05 01:00 | Zhaoyi Cao v Kazuki Shimizu | 2-6,6-2,7-5 |
| ITF USA F6 | 2018/01/31 15:00 | Ryan Nijboer v Alejandro Gomez | 1-6,6-3,2-6 |
| ITF USA F5 | 2018/01/20 17:00 | Ryan Nijboer v Ty Trombetta | 2-6,2-6 |
| ITF USA F5 | 2018/01/19 17:00 | Ryan Nijboer v Matthew Rodriguez | 6-1,6-3 |
| Lotto NK Tennis | 2017/12/15 17:30 | Ryan Nijboer v Justin Eleveld | 6-7,0-6 |
| ITF South Africa F3 | 2017/12/05 07:30 | Ryan Nijboer v Leonard Von Hindte | 2-6,5-7 |
| ITF South Africa F2 | 2017/11/29 07:30 | Nicolaas Scholtz v Ryan Nijboer | 6-7,7-6,6-2 |
| ITF South Africa F2 Qual | 2017/11/27 12:45 | Ryan Nijboer v Khololwam Montsi | 6-4,6-0 |
| ITF South Africa F2 Qual | 2017/11/26 12:45 | Ryan Nijboer v Tadija Radovanovic | 6-2,6-2 |