Ground: Hardcourt outdoor
| ITF Turkey F2 | 2015/01/17 07:00 | Onozawa, Arata v Alexey Vatutin | 2-6,2-6 |
| ITF Turkey F2 | 2015/01/15 12:55 | Jankovic, Miki v Onozawa, Arata | 4-6,7-6,0-6 |
| ITF Turkey F1 | 2015/01/08 08:00 | Hugo Nys v Onozawa, Arata | 6-1,6-2 |
| ITF Turkey F1 | 2015/01/07 08:00 | Alekseenko, Gleb v Onozawa, Arata | 4-6,4-6 |
| ITF Australia F7 | 2014/10/05 23:00 | Mitchell Krueger v Onozawa, Arata | 6-2,6-4 |
| ITF Australia F6 | 2014/09/29 00:30 | Hobart, Daniel v Onozawa, Arata | 6-7,6-4,6-4 |
| ITF Chinese Taipei F1 | 2014/08/22 02:00 | Huang, Liang-Chi v Onozawa, Arata | 6-1,6-4 |
| ITF Chinese Taipei F1 | 2014/08/19 03:50 | Hu, Hao-Yang v Onozawa, Arata | 4-6,0-6 |
| ITF Japan F1 | 2014/03/10 01:00 | Hashimoto, Taiki v Shintaro Imai | 2-6,1-6 |