Stadium: Court 13 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2019/11/15 19:35 | Issei Okamura v Mariano Kestelboim | 4-6,1-6 |
| ITF M15 Cancun | 2019/11/05 16:35 | Mateus Alves v Issei Okamura | 6-3,6-2 |
| ITF M15 Changwon | 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 M25 Brisbane | 2019/10/01 03:40 | Issei Okamura v Tomas Barrios Vera | 4-6,4-6 |
| ITF M25 Darwin | 2019/09/25 00:30 | Yu Hsiou Hsu v Issei Okamura | 6-0,7-5 |
| ITF M15 Hua Hin | 2019/09/04 07:20 | Issei Okamura v Bradley Mousley | 4-6,5-7 |
| ITF M15 Hua Hin | 2019/09/03 08:50 | Issei Okamura v Uisung Park | 6-3,6-4 |
| ITF M25 Tay Ninh | 2019/10/01 02:00 | Yurii Dzhavakian v Douglas Geiwald | 6-2,6-2 |
| ITF M25 Tay Ninh | 2019/09/30 04:55 | Jatuporn Nalamphun v Douglas Geiwald | 3-6,0-6 |
| ITF M25 Hong Kong | 2019/06/11 07:00 | Muthu A Senthilkumar v Douglas Geiwald | 6-7,6-1,10-8 |
| ITF M15 Guam | 2019/06/04 00:00 | Douglas Geiwald v Hugo Pontico | 3-6,2-6 |
| ITF M25 Hong Kong | 2018/12/31 02:00 | Yu Hsiou Hsu v Douglas Geiwald | 6-0,6-1 |
| ITF Hong Kong F3 | 2018/12/22 02:00 | Cing-Yang Meng v Douglas Geiwald | 7-6,7-5 |
| ITF Thailand F3 | 2018/09/01 02:00 | Kittirat Kerdlaphee v Douglas Geiwald | 6-2,6-1 |
| ITF Hong Kong F2 Qual | 2018/06/30 02:00 | Jeson Patrombon v Douglas Geiwald | 6-3,6-3 |