Stadium: Court 7 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Wuhan | 2019/05/08 02:00 | Yan Bai v Ti Chen | 6-2,6-2 |
| Challenger - Seoul | 2019/05/01 02:00 | Yan Bai v Evgeny Donskoy | 6-4,3-6,3-6 |
| Challenger - Seoul | 2019/04/30 03:25 | Yan Bai v Jacob Grills | 6-4,6-1 |
| Challenger Nanchang | 2019/04/22 10:00 | Yan Bai v N.Sriram Balaji | 6-2,2-6,6-7 |
| Challenger Anning | 2019/04/16 08:20 | Ramkumar Ramanathan v Yan Bai | 6-4,6-4 |
| Challenger Anning | 2019/04/15 02:00 | Mukund Sasikumar v Yan Bai | 1-6,4-6 |
| Challenger - Zhuhai | 2019/03/05 08:30 | Zhe Li v Yan Bai | 7-5,7-5 |
| Challenger - Zhuhai | 2019/03/04 02:00 | Yan Bai v Evgeny Tyurnev | 6-4,6-7,6-3 |
| ITF M25 Wuhan | 2019/05/08 03:30 | Ray Ho v Daisuke Sumizawa | 6-7,3-6 |
| ITF M25 Wuhan | 2019/05/07 02:00 | Weiqiang Zheng v Daisuke Sumizawa | 6-2,6-7,7-10 |
| ITF M25 Matsuyama | 2019/04/09 01:00 | Daisuke Sumizawa v Kazuki Shimizu | 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 |
| ITF M15 Mornington | 2019/03/25 23:00 | Daisuke Sumizawa v Stefan Skadarka | 6-3,6-7,7-10 |
| ITF M15 Mornington | 2019/03/24 23:00 | Daisuke Sumizawa v Zac Osborne | 6-2,6-1 |
| ITF M15 Mornington | 2019/03/17 23:00 | Daisuke Sumizawa v Thomas Bosancic | 3-6,4-6 |
| ITF M15 - Nishi-Tokyo | 2019/03/12 02:35 | Rimpei Kawakami v Daisuke Sumizawa | 6-2,6-1 |