Ground: Clay
| 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 Tailandia F9 | 2015/05/04 03:00 | Sho Katayama v Jacob Grills | 5-7,4-6 |
| ITF Tailandia F9 | 2015/04/28 05:30 | Jacob Grills v Sho Katayama | 6-1,3-6,6-4 |
| ITF Tailandia F9 | 2015/04/21 05:25 | Sho Katayama v Yong-Kyu Lim | 4-6,3-6 |
| ITF Japón F4 | 2015/04/01 01:00 | Sho Katayama v Kento Takeuchi | 3-6,3-6 |
| ITF Japón F4 | 2015/03/31 03:50 | Sho Katayama v Xin Gao | 6-2,6-1 |
| ITF Japón F3 | 2015/03/26 01:00 | Di Wu v Sho Katayama | 6-2,7-5 |
| ITF Tailandia F9 | 2015/04/23 04:00 | Toshihide Matsui v Akira Santillan | 1-6,2-6 |
| ITF Tailandia F9 | 2015/04/22 03:00 | Toshihide Matsui v Pruchya Isarow | 6-4,6-4 |
| ITF Tailandia F9 | 2015/04/21 03:00 | Toshihide Matsui v Suthinan Tanthaseraneewat | 6-3,6-1 |
| ITF Indonesia F3 | 2015/04/16 04:30 | Kittiphong Wachiramanowong v Toshihide Matsui | 7-6,6-1 |
| ITF Indonesia F3 | 2015/04/15 04:05 | Christian Alvin Edison v Toshihide Matsui | 3-6,2-6 |
| ITF Indonesia F1 | 2015/04/01 06:00 | Toshihide Matsui v Jeson Patrombon | 6-4,4-6,6-7 |
| ITF Japón F3 | 2015/03/25 01:00 | Finn Tearney v Toshihide Matsui | 6-3,6-3 |
| Challenger de Shanghái | 2014/09/02 02:00 | Di Wu v Toshihide Matsui | 7-5,6-3 |