Stadium: Court 1 Round: 44
| ITF Chinese Taipei F2 Qual | 2018/07/22 05:30 | Daisuke Sumizawa v Jeffrey Hsu | 3-6,1-6 |
| ITF Malaysia F3 | 2018/07/17 09:05 | Marco Brugnerotto v Daisuke Sumizawa | 6-4,6-2 |
| ITF Malaysia F3 | 2018/07/16 04:30 | Daisuke Sumizawa v Siddharth Vishwakarma | 1-6,2-6 |
| ITF Malaysia F2 | 2018/07/08 04:30 | Thomas Hann v Daisuke Sumizawa | 7-5,6-1 |
| ITF Guam F1 | 2018/06/19 04:30 | Yuichi Ito v Daisuke Sumizawa | 6-3,4-6,6-3 |
| ITF Japan F8 | 2018/06/11 00:30 | Keisuke Watanuki v Daisuke Sumizawa | 6-4,2-6,6-2 |
| ITF Japan F7 Qual | 2018/06/02 01:00 | Daisuke Sumizawa v Taisei Miyamoto | 2-6,4-6 |
| ITF Vietnam F3 | 2018/05/13 04:00 | Nicholas Bybel v Daisuke Sumizawa | 6-1,6-3 |
| ITF China F12 Qual | 2018/08/11 02:00 | Tarun Anirudh Chilakalapudi v Liran Chen | 3-6,6-1,0-6 |
| ITF China F10 Qual | 2018/07/07 02:00 | Mikal Statham v Liran Chen | 7-6,6-3 |
| ITF China F9 Qual | 2018/07/02 02:00 | Hao Wu v Liran Chen | 6-2,5-7,6-0 |
| ITF China F9 Qual | 2018/06/30 02:00 | Jiaji Wang v Liran Chen | 1-6,2-6 |
| ITF China F8 | 2018/06/04 02:00 | Fajing Sun v Liran Chen | 6-4,6-3 |
| ITF China F7 Qual | 2018/05/27 05:45 | Bang Shuo Yin v Liran Chen | 6-3,4-6,7-6 |
| ITF China F6 Qual | 2018/05/12 06:35 | Xi Qi v Liran Chen | 6-3,6-7,7-6 |
| ITF China F5 | 2018/05/09 02:00 | Yuta Shimizu v Liran Chen | 6-2,7-6 |