| ITF - Japan F8 | 2015/06/26 01:00 | Sho Katayama v Shunrou Takeshima | 3-6,6-0,6-3 |
| ITF - Japan F8 | 2015/06/25 01:00 | Sho Katayama v Masaki Sasai | 6-3,6-1 |
| ITF - Japan F8 | 2015/06/24 01:10 | Hiromasa Oku v Sho Katayama | 6-7,0-6 |
| ITF - Japan F6 | 2015/06/10 02:20 | Sho Katayama v Toshihide Matsui | 7-5,3-6,4-6 |
| ITF - Guam F1 | 2015/05/29 05:10 | Ko Suzuki v Sho Katayama | 6-3,4-6,6-2 |
| ITF - Guam F1 | 2015/05/28 00:00 | Thomas Fancutt v Sho Katayama | 6-3,2-6,4-6 |
| ITF - Thailand F9 | 2015/05/04 03:00 | Sho Katayama v Jacob Grills | 5-7,4-6 |
| ITF - Thailand F9 | 2015/04/28 05:30 | Jacob Grills v Sho Katayama | 6-1,3-6,6-4 |
| ITF - Japan F8 | 2015/06/26 02:00 | Makoto Ochi v Renta Tokuda | 3-6,6-4,4-6 |
| ITF - Japan F8 | 2015/06/25 01:00 | Renta Tokuda v Takuto Niki | 2-6,7-6,6-3 |
| ITF - Japan F8 | 2015/06/23 01:00 | Ryota Tanuma v Renta Tokuda | 6-1,1-6,5-7 |
| ITF - Japan F7 | 2015/06/18 00:30 | Arata Onozawa v Renta Tokuda | 6-4,6-2 |
| ITF - Japan F7 | 2015/06/16 00:30 | Akito Higa v Renta Tokuda | 0-6,1-6 |
| ITF - Japan F7 - Qualifikation | 2015/06/15 00:30 | Renta Tokuda v Keisuke Numajiri | 3-6,1-6 |
| ITF - Japan F7 - Qualifikation | 2015/06/14 00:00 | Renta Tokuda v Takumi Tsunematsu | 6-1,7-5 |
| ITF - Japan F6 | 2015/06/09 04:00 | Yusuke Watanuki v Renta Tokuda | 7-5,2-6,6-2 |