Ground: Hardcourt outdoor
| ITF Thailand F9 | 2015/04/25 04:00 | Katsuki Nagao v Zach Itzstein | 5-7,3-6 |
| ITF Thailand F9 | 2015/04/20 04:00 | Katsuki Nagao v Shunrou Takeshima | 4-6,5-7 |
| ITF Thailand F9 | 2015/04/19 03:00 | Katsuki Nagao v Sonchat Ratiwatana | 6-3,6-3 |
| ITF Thailand F9 | 2015/04/18 04:00 | Katsuki Nagao v Jatuporn Nalamphun | 6-0,6-2 |
| ITF Japan F3 | 2015/03/22 01:00 | Yuki Nakamura v Katsuki Nagao | 7-6,6-0 |
| ITF Japan F2 | 2015/03/18 02:55 | Duckhee Lee v Katsuki Nagao | 6-3,7-5 |
| ITF Japan F2 | 2015/03/16 01:00 | Chih-Jen Ho v Katsuki Nagao | 4-6,4-6 |
| ITF Japan F1 | 2015/03/10 03:50 | Katsuki Nagao v Duckhee Lee | 2-6,3-6 |
| ITF Thailand F9 | 2015/04/19 04:00 | Akira Santillan v Olly Sadler | 6-2,6-3 |
| ITF Thailand F9 | 2015/04/18 07:30 | Olly Sadler v Punn Bodhidatta | 7-5,6-3 |
| ITF Indonesia F3 | 2015/04/15 05:50 | Olly Sadler v Daniel Hobart | 2-6,6-7 |
| ITF Indonesia F3 Qual | 2015/04/12 04:30 | Suthinan Tanthaseraneewat v Olly Sadler | 6-2,4-6,6-7 |
| ITF Indonesia F2 Qual | 2015/04/05 04:00 | Kelsey Stevenson v Olly Sadler | 6-3,6-3 |
| ITF Indonesia F1 | 2015/04/01 03:30 | Olly Sadler v Jae Hwan Kim | 2-6,1-6 |
| ITF Australia F10 Qual | 2014/11/14 23:00 | Olly Sadler v William Ma | 4-6,6-7 |
| ITF Australia F10 | 2014/11/08 23:00 | Ivan Goluza v Olly Sadler | 6-4,7-6 |