Round: 26 Ground: Hardcourt outdoor
| ITF Japan F1 MD | 2017/03/09 06:00 | Katayama/Onozawa v Nagao/Oku | 3-6,6-3,9-11 |
| ITF Japan F5 MD | 2015/06/04 05:05 | Katayama/Onozawa v Nagao/Oku | 6-3,7-6 |
| ITF Japan F2 MD | 2017/03/15 05:45 | Niki/Uesugi v Katayama/Onozawa | 7-6,6-1 |
| ITF Japan F2 MD | 2017/03/14 07:15 | Huang/Lin v Katayama/Onozawa | 2-6,4-6 |
| ITF Japan F1 MD | 2017/03/09 06:00 | Katayama/Onozawa v Nagao/Oku | 3-6,6-3,9-11 |
| ITF Japan F1 MD | 2017/03/08 04:45 | Cao/Johns v Katayama/Onozawa | 2-6,4-6 |
| Challenger Toyota MD | 2016/11/14 03:55 | Katayama/Onozawa v Kwon/Lim | 6-4,2-6,5-10 |
| ITF Korea F7 MD | 2016/08/31 07:35 | Katayama/Onozawa v Lim/Seol | 3-6,6-2,10-12 |
| ITF Japan F7 MD | 2016/06/09 05:40 | Kibi/Niki v Katayama/Onozawa | 6-4,6-7,10-8 |
| ITF Japan F6 MD | 2016/06/02 03:00 | Katayama/Onozawa v Han/Uesugi | 6-1,6-7,9-11 |
| ITF Japan F2 MD | 2017/03/17 04:00 | Niki/Uesugi v Nagao/Oku | 3-6,6-4,10-7 |
| ITF Japan F2 MD | 2017/03/15 06:00 | Nagao/Oku v Kobayashi/Shimabukuro | 6-4,6-1 |
| ITF Japan F2 MD | 2017/03/13 07:50 | Nagao/Oku v Chung/Lee | 6-2,6-2 |
| ITF Japan F1 MD | 2017/03/11 04:00 | Nagao/Oku v Niki/Uesugi | 6-0,7-6 |
| ITF Japan F1 MD | 2017/03/10 04:00 | Takahashi/Tokuda v Nagao/Oku | 6-7,1-6 |
| ITF Japan F1 MD | 2017/03/09 06:00 | Katayama/Onozawa v Nagao/Oku | 3-6,6-3,9-11 |
| ITF Japan F1 MD | 2017/03/07 04:25 | Hashimoto/Tsunematsu v Nagao/Oku | 2-6,6-7 |
| Challenger Kyoto MD | 2017/02/21 10:05 | Ratiwatana/Ratiwatana v Nagao/Oku | 7-5,6-3 |