Estadio: Court E Round: 45 Ground: Hardcourt outdoor
| ITF Japón F8 | 2018/06/11 00:30 | Ryotaro Matsumura v Kazuki Shimizu | 7-5,6-3 |
| ITF Japón F8 | 2018/06/09 05:30 | Kazuki Shimizu v Kyohei Yamanaka | 6-1,7-6 |
| ITF Japón F8 | 2018/06/09 01:00 | Winter Meagher v Kazuki Shimizu | 7-5,4-6,4-6 |
| ITF Japón F7 | 2018/06/04 03:10 | Kazuki Shimizu v Jumpei Yamasaki | 2-6,4-6 |
| ITF Japón F7 - Clasificación | 2018/06/03 01:00 | Kazuki Shimizu v David Barclay | 6-0,6-4 |
| ITF Japón F7 - Clasificación | 2018/06/02 01:00 | Masaya Kobayashi v Kazuki Shimizu | 6-7,3-6 |
| ITF Japón F6 - Clasificación | 2018/04/08 04:00 | Sho Shimabukuro v Kazuki Shimizu | 6-2,6-1 |
| ITF Japón F4 | 2018/03/24 00:00 | Ryota Tanuma v Kazuki Shimizu | 6-2,6-1 |
| ITF M15 Anning | 2019/01/07 01:30 | Daisuke Sumizawa v Ye Cong Mo | 1-6,4-6 |
| ITF M15 Anning | 2018/12/31 05:00 | Daisuke Sumizawa v Yuichiro Inui | 4-6,2-6 |
| ITF M15 Anning | 2018/12/31 01:30 | Daisuke Sumizawa v Baoluo Zheng | 6-2,7-6 |
| ITF Kuwait F2 | 2018/11/10 07:45 | Peter Heller v Daisuke Sumizawa | 6-3,6-4 |
| ITF Kuwait F2 | 2018/11/09 07:15 | Ergi Kirkin v Daisuke Sumizawa | 2-6,3-6 |
| ITF Kuwait F2 | 2018/11/07 08:20 | Daisuke Sumizawa v Jose Fco. Vidal Azorin | 7-6,6-3 |
| ITF Kuwait F2 | 2018/11/05 08:45 | Daisuke Sumizawa v Marc Dijkhuizen | 3-6,6-4,6-2 |
| ITF Kuwait F2 | 2018/11/04 08:20 | Mousa Alkotop v Daisuke Sumizawa | 4-6,6-7 |