Round: 26 Ground: Hardcourt outdoor
| ITF Japan F3 | 2017/03/20 01:00 | Masaya Kobayashi v Chan-Yeong Oh | 4-6,2-6 |
| ITF Japan F3 | 2017/03/19 01:00 | Chan-Yeong Oh v Naoya Maesaki | 6-2,6-4 |
| ITF Japan F3 | 2017/03/18 08:00 | Chan-Yeong Oh v Yuki Nakamura | 6-3,1-6,7-5 |
| ITF Japan F3 | 2017/03/18 03:00 | Chan-Yeong Oh v Ibuki Furuta | 7-6,6-1 |
| ITF Indonesia F3 | 2017/02/23 03:00 | Sho Katayama v Chan-Yeong Oh | 7-6,7-6 |
| ITF Indonesia F3 | 2017/02/22 05:20 | Chan-Yeong Oh v Mohd Assri Merzuki | 6-3,6-4 |
| ITF Indonesia F2 | 2017/02/17 03:00 | Chan-Yeong Oh v Nathan Pasha | 1-6,2-6 |
| ITF Indonesia F2 | 2017/02/16 03:30 | Cheong-Eui Kim v Chan-Yeong Oh | 6-4,4-6,6-7 |
| ITF Japan F3 | 2017/03/20 01:00 | Soichiro Moritani v Masato Shiga | 6-2,6-2 |
| ITF Japan F2 | 2017/03/13 01:00 | Soichiro Moritani v Rio Noguchi | 3-6,0-6 |
| ITF Japan F2 | 2017/03/12 04:00 | Soichiro Moritani v Sota Fujii | 6-2,7-5 |
| ITF Japan F1 | 2017/03/08 01:00 | Masaya Kobayashi v Soichiro Moritani | 6-3,6-4 |
| ITF Indonesia F2 | 2017/02/15 06:25 | Sho Katayama v Soichiro Moritani | 6-2,6-3 |
| ITF Indonesia F1 | 2017/02/09 03:00 | Karunuday Singh v Soichiro Moritani | 6-4,6-3 |
| ITF Indonesia F1 | 2017/02/07 05:35 | Soichiro Moritani v Roy Hobbs | 6-3,7-6 |
| ITF Thailand F5 | 2016/12/18 04:00 | Soichiro Moritani v Keisuke Numajiri | 4-6,4-6 |