Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 - Antalya | 2020/02/02 09:30 | Umut Akkoyun v Berk Ilkel | 6-2,2-6,10-7 |
| ITF M15 - Antalya | 2020/01/29 08:30 | Umut Akkoyun v Jonathan Eysseric | 0-6,2-6 |
| ITF M15 - Antalya | 2020/01/22 08:40 | Miljan Zekic v Umut Akkoyun | 4-6,6-1,6-1 |
| ITF M15 - Antalya | 2020/01/13 07:00 | Umut Akkoyun v Berk Ilkel | 2-6,2-6 |
| ITF M15 - Antalya | 2020/01/12 07:00 | Cihan Akay v Umut Akkoyun | 3-6,2-6 |
| ITF M15 - Antalya | 2020/01/08 09:00 | Umut Akkoyun v Andrey Chepelev | 4-6,5-7 |
| ITF M15 - Antalya | 2019/12/02 07:00 | Mircea-Alexandru Jecan v Umut Akkoyun | 6-2,6-2 |
| ITF M15 - Antalya | 2019/12/01 07:00 | Umut Akkoyun v Daniil Gusev | 6-0,6-2 |
| ITF M15 - Antalya | 2020/02/02 12:30 | Kazuki Shimizu v Grigoriy Korobeynikov | 7-6,6-2 |
| ITF M15 - Akishima | 2019/06/11 03:00 | Ko Suzuki v Kazuki Shimizu | 7-5,6-3 |
| ITF M15 - Karuizawa | 2019/05/30 04:30 | Haru Inoue v Kazuki Shimizu | 6-2,6-1 |
| ITF M15 - Karuizawa | 2019/05/29 05:15 | Kazuki Shimizu v Kousuke Ogura | 7-5,5-7,6-4 |
| ITF M25 - Matsuyama | 2019/04/10 03:30 | Gage Brymer v Kazuki Shimizu | 7-6,5-7,6-0 |
| ITF M25 - Matsuyama | 2019/04/09 01:00 | Daisuke Sumizawa v Kazuki Shimizu | 6-3,4-6,6-10 |
| ITF M25 - Matsuyama | 2019/04/08 01:00 | Kazuki Shimizu v Yuichiro Inui | 6-2,6-0 |
| ITF M15 - Tsukuba | 2019/03/25 01:00 | Mick Veldheer v Kazuki Shimizu | 6-1,6-4 |