Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Anning | 2018/12/31 05:00 | Daisuke Sumizawa v Yuichiro Inui | 4-6,2-6 |
| ITF Japan F6 Qual | 2017/05/27 01:00 | Yuichiro Inui v Daisuke Sumizawa | 2-6,3-6 |
| 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 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/25 23:00 | Daisuke Sumizawa v Skadarka, Stefan | 6-3,6-7,7-10 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/05/23 10:00 | Yuichiro Inui v Dougaz, Aziz | 5-7,1-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/05/21 11:10 | Nicolas Tepmahc v Yuichiro Inui | 6-4,1-6,3-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/05/20 12:30 | Yuichiro Inui v Sharma, Ashwin Ryan | 6-4,4-6,10-7 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/05/15 09:20 | Yuichiro Inui v Alessandro Ingarao | 2-6,3-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/05/07 08:30 | Bojanovic, Darko v Yuichiro Inui | 6-4,7-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/08 01:00 | Shimizu, Kazuki v Yuichiro Inui | 6-2,6-0 |
| ITF - M15 Kashiwa | 2019/04/01 00:00 | Yuichiro Inui v Kikuchi, Gengo | 4-6,2-6 |
| Mornington, Singles Qualifying M-ITF-AUS-04A | 2019/03/26 23:00 | Yuichiro Inui v Skadarka, Stefan | 3-6,3-6 |