Stadium: Court 3 Round: 45
| Challenger Kobe Qual | 2017/11/04 06:30 | Issei Okamura v Takuto Niki | 6-3,2-6,2-6 |
| ITF Thailand F9 | 2017/10/16 05:20 | Issei Okamura v Enrico Dalla Valle | 6-4,3-6,2-6 |
| ITF Thailand F8 Qual | 2017/10/09 03:25 | Riccardo Balzerani v Issei Okamura | 6-3,6-1 |
| ITF Thailand F8 Qual | 2017/10/08 07:20 | Remy Bertola v Issei Okamura | 6-3,3-6,6-7 |
| ITF Thailand F7 Qual | 2017/10/02 02:30 | Issei Okamura v Matteo Martineau | 6-4,6-7,2-6 |
| ITF Thailand F7 Qual | 2017/10/01 08:25 | Issei Okamura v Jirat Navasirisomboon | 6-3,6-1 |
| ITF Switzerland F5 | 2017/08/28 10:25 | Issei Okamura v Juan Manuel Benitez Chavarriaga | 7-5,5-7,3-6 |
| ITF Switzerland F4 | 2017/08/22 09:25 | Issei Okamura v Raphael Baltensperger | 0-6,6-4,3-6 |
| Challenger Kobe Qual | 2017/11/06 02:00 | Makoto Ochi v Marinko Matosevic | 3-6,5-7 |
| Challenger Kobe Qual | 2017/11/05 04:35 | Max Purcell v Makoto Ochi | 7-5,3-6,1-6 |
| Challenger Kobe Qual | 2017/11/04 02:00 | Makoto Ochi v Cheong-Eui Kim | 6-4,6-3 |
| ITF Thailand F8 | 2017/10/10 02:50 | Martins Podzus v Makoto Ochi | 6-2,6-1 |
| ITF Thailand F7 | 2017/10/05 03:30 | Makoto Ochi v Yuta Shimizu | 1-6,5-7 |
| ITF Thailand F7 | 2017/10/04 04:00 | Makoto Ochi v Palaphoom Kovapitukted | 4-6,6-0,6-2 |
| ITF Thailand F7 | 2017/10/03 10:20 | Makoto Ochi v Soichiro Moritani | 6-4,6-2 |
| Challenger Gwangju | 2017/09/21 03:40 | Soonwoo Kwon v Makoto Ochi | 1-6,6-1,6-0 |