Ground: Hardcourt outdoor
| ITF Japan F8 | 2015/06/24 01:10 | Masayoshi Ono v Arata Onozawa | 2-6,2-6 |
| ITF Japan F6 | 2015/06/11 01:00 | Masayoshi Ono v Toshihide Matsui | 5-7,0-6 |
| ITF Guam F1 | 2015/05/27 00:00 | Hiromasa Oku v Masayoshi Ono | 6-0,6-2 |
| ITF Guam F1 | 2015/05/24 02:00 | Winter Meagher v Masayoshi Ono | 2-6,2-6 |
| ITF Greece F6 | 2015/04/27 09:20 | Stephanos Schinas v Masayoshi Ono | 6-7,6-4,6-1 |
| ITF Greece F5 | 2015/04/18 08:30 | Delf Gohlke v Masayoshi Ono | 6-7,6-2,6-2 |
| ITF Japan F4 | 2015/03/28 03:00 | Masaki Sasai v Masayoshi Ono | 6-4,6-1 |
| ITF Japan F1 | 2015/03/07 01:00 | Yohei Ono v Masayoshi Ono | 6-4,7-6 |
| ITF Canada F5 Qual | 2015/07/20 18:00 | Robbie C Bellamy v Kento Tanaka-Tamaki | 6-4,7-6 |
| ITF Japan F6 Qual | 2015/06/07 01:00 | Ko Suzuki v Kento Tanaka-Tamaki | 6-2,6-3 |
| ITF USA F24 Qual | 2014/09/06 17:00 | Ty Trombetta v Kento Tanaka-Tamaki | 6-3,6-4 |
| ITF Japan F6 | 2014/06/10 01:30 | Yuya Kibi v Kento Tanaka-Tamaki | 6-3,6-0 |