| ITF Japan F7 | 2015/06/16 02:15 | Onozawa, Arata v Watanuki, Keisuke | 7-6,0-6,6-3 |
| ITF Japan F5 | 2015/06/02 01:00 | 오치, 마코토 v Onozawa, Arata | 3-6,6-2,6-4 |
| ITF China F6 | 2015/05/26 07:20 | Onozawa, Arata v Gong, Peng-Xiang | 6-0,6-2 |
| ITF China F6 | 2015/05/20 02:00 | Onozawa, Arata v 치, 시 | 4-6,1-6 |
| ITF Thailand F9 | 2015/05/06 03:00 | Onozawa, Arata v Burapharitta, Phassawit | 6-2,0-6,5-7 |
| ITF Thailand F9 | 2015/05/05 04:25 | Onozawa, Arata v 오치, 마코토 | 6-3,6-3 |
| ITF Thailand F9 | 2015/04/29 04:55 | Sornbutnark, Warit v Onozawa, Arata | 6-3,6-2 |
| ITF Thailand F9 | 2015/04/28 07:15 | Shiga, Masato v Onozawa, Arata | 3-6,6-7 |
| ITF Japan F7 | 2015/06/16 00:30 | Higa, Akito v 토쿠다, 렌타 | 0-6,1-6 |
| ITF Japan F7 Qual | 2015/06/15 00:30 | 토쿠다, 렌타 v Numajiri, Keisuke | 3-6,1-6 |
| ITF Japan F7 Qual | 2015/06/14 00:00 | 토쿠다, 렌타 v Tsunematsu, Takumi | 6-1,7-5 |
| ITF Japan F6 | 2015/06/09 04:00 | 와타누키, 유스케 v 토쿠다, 렌타 | 7-5,2-6,6-2 |
| ITF Japan F6 Qual | 2015/06/08 01:00 | 오치, 마코토 v 토쿠다, 렌타 | 6-7,6-1,4-6 |
| ITF Japan F6 Qual | 2015/06/07 03:30 | Fujii, Shinta v 토쿠다, 렌타 | 3-6,2-6 |
| ITF Japan F7 | 2014/06/19 03:05 | Kibi, Yuya v 토쿠다, 렌타 | 7-5,6-4 |
| ITF Japan F7 Qual | 2014/06/16 01:00 | Osafune, Masaki v 토쿠다, 렌타 | 4-6,3-6 |