Stadium: Court B Round: 54 Ground: Hardcourt outdoor
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/22 08:50 | Daisuke Sumizawa v Borisutpong, Pattanapong | 6-2,6-4 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/11 03:20 | Rio Noguchi v Daisuke Sumizawa | 6-3,6-0 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/09 04:30 | Qiu, Zhuoyang v Daisuke Sumizawa | 1-6,0-6 |
| Kunshan, Simples M-ITF-CHN-12A | 2019/07/04 03:10 | Daisuke Sumizawa v Xia, Haitong | 3-6,6-4,3-6 |
| Kunshan, Simples M-ITF-CHN-12A | 2019/07/02 10:35 | Wattanakul, Pol v Daisuke Sumizawa | 1-6,6-2,3-6 |
| ITF M15 Anseong | 2019/06/25 02:45 | Park, Uisung v Daisuke Sumizawa | 6-4,3-6,6-2 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/19 01:00 | Kwon, OH-Hee v Daisuke Sumizawa | 4-6,7-6,6-3 |
| Akishima, Singles M-ITF-JPN-08A | 2019/06/11 06:30 | Sho Shimabukuro v Daisuke Sumizawa | 6-4,6-3 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/22 09:35 | Krittin Koaykul v Sibanda, Mehluli Don Ayanda | 6-4,6-4 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/05/28 05:50 | Rio Noguchi v Krittin Koaykul | 6-3,6-0 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/05/20 06:55 | Crnokrak, Alexander v Krittin Koaykul | 6-1,6-4 |
| ITF M15 Anning | 2019/01/14 01:30 | Kazuma Kawachi v Krittin Koaykul | 7-6,6-2 |
| ITF M15 Anning | 2018/12/31 01:30 | Krittin Koaykul v Bessire, Francesco | 3-6,2-6 |
| ITF Thailand F9 | 2018/11/10 05:00 | Krittin Koaykul v Kaewsuto, Chayanon | 2-6,6-1,3-6 |
| ITF Thailand F8 | 2018/11/03 02:00 | Kerdlaphee, Phongsapak v Krittin Koaykul | 6-2,6-4 |
| ITF Thailand F7 | 2018/10/28 03:00 | Krittin Koaykul v Siddharth Vishwakarma | 2-6,5-7 |