Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| ITF M15 Čchangwon | 2019/10/16 00:50 | Takuya Kumasaka v Kasidit Samrej | 4-6,3-6 |
| ITF M15 Hua Hin | 2019/08/28 04:50 | Ryan Peniston v Kasidit Samrej | 6-4,6-4 |
| ITF M15 Hua Hin | 2019/08/21 06:00 | Kasidit Samrej v Wishaya Trongcharoenchaikul | 6-4,4-6,3-6 |
| ITF M15 Jakarta | 2019/08/16 02:30 | Aryan Goveas v Kasidit Samrej | 6-4,4-6,6-4 |
| ITF M15 Jakarta | 2019/08/15 03:45 | Aaron Addison v Kasidit Samrej | 3-6,4-6 |
| ITF M25 Nonthaburi | 2019/07/24 03:30 | Kasidit Samrej v Arjun Kadhe | 3-6,6-2,4-6 |
| ITF M15 Singapur | 2019/06/13 02:00 | Kelsey Stevenson v Kasidit Samrej | 6-4,4-6,6-2 |
| ITF M15 Singapur | 2019/06/12 03:00 | Roy Hobbs v Kasidit Samrej | 3-6,1-6 |
| ITF M15 Čchangwon | 2019/10/16 04:50 | Ryohei Tagata v Takuto Niki | 7-5,2-6,6-4 |
| ITF M15 Akishima | 2019/06/15 03:30 | Ryohei Tagata v Yuta Kikuchi | 6-4,2-6,2-6 |
| ITF M15 Akishima | 2019/06/14 01:00 | Ryohei Tagata v Sho Katayama | 7-6,6-4 |
| ITF M15 Akishima | 2019/06/13 02:45 | Haru Inoue v Ryohei Tagata | 6-4,3-6,2-6 |
| ITF M15 Akishima | 2019/06/12 01:00 | Ryohei Tagata v Kenta Kurita | 6-2,6-3 |
| ITF M15 Tsukuba | 2019/03/28 02:10 | Ryohei Tagata v Takuto Niki | 3-6,6-2,7-5 |
| ITF M15 Tsukuba | 2019/03/26 01:00 | Ryohei Tagata v Yuta Kawahashi | 4-6,6-2,6-1 |
| ITF Japan F4 | 2018/03/27 02:30 | Ryohei Tagata v Yuta Shimizu | 4-6,4-6 |