Ground: Hardcourt outdoor
| ITF Thailand F9 | 2015/04/20 04:45 | Shiga, Masato v Sornbutnark, Warit | 4-6,5-7 |
| ITF Japan F4 | 2015/03/31 01:00 | Shiga, Masato v 타누마, 리요타 | 6-3,4-6,2-6 |
| ITF Japan F3 | 2015/03/25 03:00 | Shiga, Masato v 이토, 유이치 | 3-6,6-3,5-7 |
| ITF Japan F2 | 2015/03/17 02:50 | Shiga, Masato v Yi, Chu-Huan | 1-6,2-6 |
| ITF Turkey F3 | 2015/01/27 08:00 | Shiga, Masato v 미에들러, 루카스 | 6-3,6-7,5-7 |
| ITF Turkey F4 | 2015/01/26 11:40 | Shiga, Masato v Zgombic, Fran Zvonimir | 6-1,6-2 |
| ITF Turkey F4 | 2015/01/25 08:00 | Shiga, Masato v 노스, 가브리엘 마리아 | 7-6,6-3 |
| ITF Turkey F3 | 2015/01/20 09:30 | Shiga, Masato v 우질로브스키, 볼로도이미르 | 3-6,6-3,3-6 |
| ITF Japan F4 | 2015/03/30 05:00 | Onozawa, Arata v 세키구치, 스이치 | 4-6,4-6 |
| ITF Japan F3 | 2015/03/24 03:20 | 우치야마, 야스타카 v Onozawa, Arata | 6-3,6-2 |
| ITF Japan F2 | 2015/03/17 04:10 | Sasai, Masaki v Onozawa, Arata | 6-4,6-4 |
| ITF Japan F1 | 2015/03/12 01:00 | Onozawa, Arata v 오니시, 켄 | 3-6,6-1,5-7 |
| ITF Japan F1 | 2015/03/10 01:00 | Onozawa, Arata v Hashimoto, Taiki | 6-2,6-1 |
| ITF Turkey F2 | 2015/01/17 07:00 | Onozawa, Arata v 바투틴, 알렉세이 | 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 | 니스, 휴고 v Onozawa, Arata | 6-1,6-2 |