Stadium: Court 6 Round: 54 Ground: Hardcourt outdoor
| ITF - Hongkong M15 | 2020/01/06 02:00 | Issei Okamura v Douglas Geiwald | 6-2,6-1 |
| ITF - Cancun M15 | 2019/11/15 19:35 | Issei Okamura v Mariano Kestelboim | 4-6,1-6 |
| ITF - Cancun M15 | 2019/11/05 16:35 | Mateus Alves v Issei Okamura | 6-3,6-2 |
| ITF - Changwon M15 | 2019/10/15 03:10 | Cheong-Eui Kim v Issei Okamura | 6-4,4-6,6-4 |
| ITF M25 Toowoomba | 2019/10/08 01:50 | Issei Okamura v Tristan Schoolkate | 3-6,6-2,4-6 |
| ITF - Brisbane M25 | 2019/10/01 03:40 | Issei Okamura v Tomas Barrios Vera | 4-6,4-6 |
| ITF - Darwin M25 | 2019/09/25 00:30 | Yu Hsiou Hsu v Issei Okamura | 6-0,7-5 |
| ITF - Hua Hin M15 | 2019/09/04 07:20 | Issei Okamura v Bradley Mousley | 4-6,5-7 |
| ITF - Nonthaburi M15 - Kwalifikacje | 2019/12/01 09:30 | Jeamoon Lee v Chayanon Kaewsuto | 6-1,6-1 |
| ITF - Nonthaburi M15 | 2019/11/25 02:30 | Chayanon Kaewsuto v Rishab Agarwal | 1-6,0-6 |
| ITF - Nonthaburi M15 | 2019/11/24 03:55 | Chayanon Kaewsuto v Saranpong Borisutpong | 2-6,7-5,10-3 |
| ITF - Hua Hin M15 | 2019/09/02 05:20 | Takashi Saito v Chayanon Kaewsuto | 6-3,6-2 |
| ITF - Hua Hin M15 | 2019/08/21 08:25 | Chanchai Sookton-Eng v Chayanon Kaewsuto | 6-0,6-4 |
| ITF - Nonthaburi M25 | 2019/07/31 02:30 | Kunal Anand v Chayanon Kaewsuto | 6-2,6-7,6-2 |
| ITF - Nonthaburi M25 | 2019/07/22 05:50 | Lucas Vuradin v Chayanon Kaewsuto | 6-2,6-2 |
| ITF - Nonthaburi M25 | 2019/05/30 10:10 | Chayanon Kaewsuto v Shuichi Sekiguchi | 2-6,7-5,4-6 |