| ITF Japan F1 | 2015/03/07 01:00 | Ono, Yohei v Ono, Masayoshi | 6-4,7-6 |
| ITF Japan F7 | 2014/06/21 03:20 | Ono, Yohei v Oku, Hiromasa | 2-6,4-6 |
| ITF Japan F7 | 2014/06/20 02:30 | Ono, Yohei v Ho, Chih-Jen | 4-6,6-3,6-2 |
| ITF Japan F7 | 2014/06/19 01:00 | Nagao, Katsuki v Ono, Yohei | 5-7,5-7 |
| ITF Japan F6 | 2014/06/11 07:25 | Ono, Yohei v Ushida, Atsushi | 6-7,4-6 |
| ITF Japan F5 | 2014/06/02 03:00 | Kikuchi, Gengo v Ono, Yohei | 6-4,6-2 |
| ITF Japan F3 | 2014/03/26 01:00 | Ono, Yohei v Katayama, Sho | 2-6,3-6 |
| ITF Japan F3 | 2014/03/24 01:00 | Ono, Yohei v Nakamura, Yuki | 6-2,6-1 |
| ITF Australia F2 | 2015/03/04 02:55 | Klein, Brydan v Onishi, Ken | 6-3,6-2 |
| ITF Australia F2 Qual | 2015/03/01 23:30 | Onishi, Ken v Djurovic, Blazo N | 6-3,7-6 |
| ITF Australia F1 | 2015/02/24 01:00 | Onishi, Ken v van Peperzeel, Gavin | 3-6,4-6 |
| ITF Australia F1 Qual | 2015/02/22 23:30 | Onishi, Ken v Ma, William | 6-3,7-5 |
| ITF Australia F1 Qual | 2015/02/22 00:30 | Onishi, Ken v Pascual, Marlino | 6-1,6-2 |
| ITF Tunisia F9 | 2014/11/24 10:55 | Mladenov, Vasko v Onishi, Ken | 6-1,6-3 |
| ITF Tunisia F9 | 2014/11/23 10:00 | Harper-Griffith, Levar v Onishi, Ken | 3-6,3-6 |
| ITF Tunisia F8 | 2014/11/17 13:15 | Aswat, Imran v Onishi, Ken | 6-7,6-4,6-4 |