Round: 25 Ground: Hardcourt outdoor
| ITF Turkey F36 | 2015/10/06 07:00 | Tim Van Rijthoven v Marek Semjan | 6-4,6-3 |
| ITF Slovakia F3 | 2015/07/31 08:00 | Marek Jaloviec v Marek Semjan | 1-6,6-2,3-6 |
| ITF Slovakia F3 | 2015/07/30 08:00 | Vitaliy Sachko v Marek Semjan | 4-6,1-6 |
| ITF Slovakia F3 | 2015/07/28 11:10 | Scott Puodziunas v Marek Semjan | 7-5,4-6,6-7 |
| ITF Slovakia F2 | 2015/07/21 12:55 | Martin Blasko v Marek Semjan | 3-6,5-7 |
| ITF Croatia F4 | 2015/03/10 09:00 | Michal Schmid v Marek Semjan | 6-3,6-3 |
| ITF Greece F9 | 2014/10/23 07:30 | Quentin Halys v Marek Semjan | 6-2,6-3 |
| ITF Greece F9 | 2014/10/21 07:00 | Ioannis Stergiou v Marek Semjan | 3-6,5-7 |
| ITF Turkey F36 | 2015/10/05 07:00 | Yuanfeng Li v Masaki Osafune | 7-5,6-0 |
| ITF Turkey F36 | 2015/10/04 12:00 | Masaki Osafune v Victor-Mugurel Anagnastopol | 7-5,6-0 |
| ITF China F11 Qual | 2015/07/20 02:00 | Kittiphong Wachiramanowong v Masaki Osafune | 6-0,6-1 |
| ITF China F11 Qual | 2015/07/19 02:00 | Masaki Osafune v Long Chen | 6-4,4-6,7-6 |
| ITF China F10 Qual | 2015/07/12 02:00 | Jun Nan Tao v Masaki Osafune | 4-6,6-1,6-2 |
| ITF China F10 Qual | 2015/07/11 04:00 | Masaki Osafune v Hao Fan Wang | 6-3,6-1 |
| ITF Japan F8 | 2015/06/24 01:10 | Katsuki Nagao v Masaki Osafune | 6-3,6-0 |
| ITF Japan F7 Qual | 2015/06/15 00:30 | Koichi Sano v Masaki Osafune | 6-4,6-2 |