Ground: Hardcourt outdoor
| ITF Japan F2 | 2015/03/15 01:00 | Ryota Tanuma v Onishi, Ken | 2-6,6-4,3-6 |
| ITF Japan F2 | 2015/03/14 00:30 | Ryota Tanuma v Kazuki Nishiwaki | 6-4,6-4 |
| ITF USA F9 Qual | 2015/02/23 14:30 | Matos, Rafael v Ryota Tanuma | 6-4,6-4 |
| ITF USA F9 Qual | 2015/02/21 15:00 | Dettinger, Moritz v Ryota Tanuma | 0-6,4-6 |
| ITF USA F9 Qual | 2015/02/20 18:00 | Leduc, Antoine v Ryota Tanuma | 2-6,7-6,1-6 |
| ITF USA F8 Qual | 2015/02/15 17:30 | Cotrone, Dominic v Ryota Tanuma | 6-3,6-2 |
| USA F7, Singles Qualifying | 2015/02/11 14:30 | Tommy Paul v Ryota Tanuma | 6-2,6-2 |
| ITF USA F7 Qual | 2015/02/09 15:30 | Zheng, Weiqiang v Ryota Tanuma | 1-6,3-6 |
| ITF Japan F2 | 2015/03/17 01:00 | Duckhee Lee v Kikuchi, Gengo | 6-2,3-6,6-3 |
| ITF Japan F1 | 2015/03/13 03:55 | Kikuchi, Gengo v Duckhee Lee | 6-7,0-6 |
| ITF Japan F1 | 2015/03/12 02:45 | Yunseong Chung v Kikuchi, Gengo | 6-1,6-7,5-7 |
| ITF Turkey F32 | 2014/09/17 10:55 | Kikuchi, Gengo v Kiyamov, Timur | 2-6,1-6 |
| ITF Hong Kong F2 | 2014/07/16 02:00 | Kikuchi, Gengo v Roelofse, Ruan | 4-6,1-6 |
| ITF Hong Kong F2 | 2014/07/14 03:30 | Kikuchi, Gengo v Oku, Hiromasa | 6-7,6-4,6-2 |
| ITF Hong Kong F1 | 2014/07/10 03:30 | Kikuchi, Gengo v Ito, Yuichi | 1-6,7-6,6-7 |
| ITF Hong Kong F1 | 2014/07/07 02:00 | Kikuchi, Gengo v Sidharth Rawat | 6-2,6-4 |