Stadium: Court 6 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Qujing | 2019/07/11 03:20 | Rio Noguchi v Daisuke Sumizawa | 6-3,6-0 |
| ITF M25 Qujing | 2019/07/09 04:30 | Zhuoyang Qiu v Daisuke Sumizawa | 1-6,0-6 |
| ITF M25 Kunshan | 2019/07/04 03:10 | Daisuke Sumizawa v Haitong Xia | 3-6,6-4,3-6 |
| ITF M25 Kunshan | 2019/07/02 10:35 | Pol Wattanakul v Daisuke Sumizawa | 1-6,6-2,3-6 |
| ITF M15 Anseong | 2019/06/25 02:45 | Uisung Park v Daisuke Sumizawa | 6-4,3-6,6-2 |
| ITF M15 Gimcheon | 2019/06/19 01:00 | Oh-Hee Kwon v Daisuke Sumizawa | 4-6,7-6,6-3 |
| ITF M15 Akishima | 2019/06/11 06:30 | Sho Shimabukuro v Daisuke Sumizawa | 6-4,6-3 |
| ITF M15 Karuizawa | 2019/05/30 01:00 | Daisuke Sumizawa v Soichiro Moritani | 2-6,6-4,6-7 |
| ITF M15 Singapore | 2019/06/10 04:30 | Saranpong Borisutpong v Atharva Sharma | 7-5,2-6,10-12 |
| ITF M15 Singapore | 2019/06/03 04:30 | Jesse Ross v Saranpong Borisutpong | 6-4,6-4 |
| ITF M25 Nonthaburi | 2019/05/20 08:10 | Saranpong Borisutpong v Phongsapak Kerdlaphee | 6-7,6-2,11-9 |
| ITF Thailand F8 | 2018/11/03 04:30 | Saranpong Borisutpong v Chayanon Kaewsuto | 3-6,3-6 |
| ITF Thailand F6 | 2018/10/08 02:30 | Roy Hobbs v Saranpong Borisutpong | 3-6,2-6 |
| ITF Thailand F6 | 2018/10/07 02:30 | Saranpong Borisutpong v Stephen Kaldawi | 6-4,6-3 |
| ITF Thailand F6 | 2018/10/06 07:00 | Saranpong Borisutpong v Alex Hunt | 6-3,7-5 |
| ITF Thailand F5 | 2018/09/29 04:30 | Matic Spec v Saranpong Borisutpong | 6-1,6-0 |