| ITF Japan F7 | 2014/06/20 02:30 | Yohei Ono v Chih-Jen Ho | 4-6,6-3,6-2 |
| ITF Japan F7 | 2014/06/19 01:00 | Katsuki Nagao v Yohei Ono | 5-7,5-7 |
| ITF Japan F6 | 2014/06/11 07:25 | Yohei Ono v Atsushi Ushida | 6-7,4-6 |
| ITF Japan F5 | 2014/06/02 03:00 | Gengo Kikuchi v Yohei Ono | 6-4,6-2 |
| ITF Japan F3 | 2014/03/26 01:00 | Yohei Ono v Sho Katayama | 2-6,3-6 |
| ITF Japan F3 | 2014/03/24 01:00 | Yohei Ono v Yuki Nakamura | 6-2,6-1 |
| ITF Japan F2 | 2014/03/17 01:00 | Gengo Kikuchi v Yohei Ono | 3-6,6-4,6-2 |
| ITF Japan F1 | 2014/03/14 03:20 | Yohei Ono v Liang-Chi Huang | 2-6,6-4,0-6 |
| ITF Japan F6 | 2014/06/14 02:00 | Hiromasa Oku v Yuya Kibi | 0-6,2-6 |
| ITF Japan F6 | 2014/06/13 02:50 | Shunrou Takeshima v Hiromasa Oku | 1-6,0-6 |
| ITF Japan F6 | 2014/06/13 00:00 | Hiromasa Oku v Jui-Chen Hung | 6-2,6-4 |
| ITF Japan F6 | 2014/06/10 03:20 | Gengo Kikuchi v Hiromasa Oku | 3-6,6-7 |
| ITF Japan F5 | 2014/06/05 01:00 | Hiromasa Oku v Yuya Kibi | 4-6,2-6 |
| ITF Japan F5 | 2014/06/04 01:00 | Hiromasa Oku v Katsuki Nagao | 7-6,7-6 |
| ITF Japan F5 | 2014/06/03 02:30 | Takashi Saito v Hiromasa Oku | 2-6,4-6 |
| ITF Korea F1 Qual | 2014/04/29 00:30 | Jung-Woong Na v Hiromasa Oku | 6-3,6-4 |