Stadium: Court 9 Round: 26 Ground: Clay
| Karuizawa, Singles M-ITF-JPN-07A | 2019/05/28 01:00 | Daisuke Sumizawa v Yuichiro Inui | 6-4,7-6 |
| ITF - M25 Luan | 2019/05/15 06:30 | Daisuke Sumizawa v Jie Cui | 4-6,2-6 |
| ITF - M25 Luan | 2019/05/14 02:00 | Daisuke Sumizawa v Ruikai Wang | 6-4,6-3 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/09 03:10 | Yan Bai v Daisuke Sumizawa | 6-3,6-1 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/08 03:30 | Ray Ho v Daisuke Sumizawa | 6-7,3-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/07 02:00 | Zheng, Weiqiang v Daisuke Sumizawa | 6-2,6-7,7-10 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/09 01:00 | Daisuke Sumizawa v Shimizu, Kazuki | 6-3,4-6,6-10 |
| ITF - M15 Kashiwa | 2019/04/01 00:00 | Daisuke Sumizawa v Kazuki Nishiwaki | 6-2,2-6,8-10 |
| Karuizawa, Singles M-ITF-JPN-07A | 2019/05/28 02:30 | Tomohiro Masabayashi v Moritani, Soichiro | 3-6,3-6 |
| Nishi-Tama, Simples M-ITF-JPN-01A | 2019/03/06 01:00 | Moritani, Soichiro v Keisuke Saitoh | 2-6,0-6 |
| ITF M15 Anning | 2019/01/11 05:10 | Moritani, Soichiro v Liu, Shao-Fan | 7-5,3-6,3-6 |
| ITF M15 Anning | 2019/01/10 03:45 | Moritani, Soichiro v Takeuchi, Kento (1987) | 2-6,6-3,7-5 |
| ITF M15 Anning | 2019/01/09 07:30 | Sora Fukuda v Moritani, Soichiro | 3-6,2-6 |
| ITF M15 Anning | 2019/01/01 03:30 | Nitin Kumar Sinha v Moritani, Soichiro | 6-1,6-7,6-3 |
| Challenger Kobe | 2018/11/10 05:30 | Moritani, Soichiro v Tung-Lin Wu | 2-6,6-4,3-6 |
| Thailande F6, Qualifications Simples | 2018/10/09 02:30 | Spec, Matic v Moritani, Soichiro | 6-1,5-7,6-3 |