Round: 26 Ground: Hardcourt outdoor
| ITF Serbia F6 | 2015/07/20 08:00 | Kiyamov, Timur v Numajiri, Keisuke | 6-1,7-5 |
| ITF Serbia F6 | 2015/07/18 11:00 | Barclay, David v Numajiri, Keisuke | 2-6,2-6 |
| ITF Serbia F6 | 2015/07/11 11:00 | Numajiri, Keisuke v Markovic, Goran | 6-4,6-4 |
| ITF Japan F8 | 2015/06/25 01:00 | Numajiri, Keisuke v Watanuki, Keisuke | 3-6,3-6 |
| ITF Japan F7 Qual | 2015/06/15 00:30 | Renta Tokuda v Numajiri, Keisuke | 3-6,1-6 |
| ITF Japan F7 Qual | 2015/06/13 00:00 | Kai, Naoto v Numajiri, Keisuke | 2-6,3-6 |
| ITF Japan F6 Qual | 2015/06/07 05:00 | Sano, Koichi v Numajiri, Keisuke | 6-0,4-6,6-1 |
| ITF USA F16 | 2015/05/09 16:00 | Lunn, Justin v Numajiri, Keisuke | 3-6,2-6 |
| ITF Turkey F35 | 2015/09/02 14:50 | Barranco, Sergio v Konecny, Michal | 1-6,4-6 |
| ITF Turkey F34 | 2015/08/30 14:00 | Niesten, Miliaan v Konecny, Michal | 1-6,2-6 |
| ITF Turkey F34 | 2015/08/28 14:50 | Alekseenko, Vadim v Konecny, Michal | 3-6,2-6 |
| ITF Turkey F34 | 2015/08/27 15:20 | Corentin Denolly v Konecny, Michal | 6-3,6-7,2-6 |
| ITF Turkey F34 | 2015/08/25 14:20 | Koray Kirci v Konecny, Michal | 1-6,5-7 |
| ITF Austria F8 | 2015/08/19 08:00 | Poskocil, Jan v Konecny, Michal | 6-3,6-1 |
| ITF Austria F5 | 2015/07/26 08:00 | Ghedin, Nicola v Konecny, Michal | 1-6,3-6 |
| ITF Austria F5 | 2015/07/25 08:00 | Konecny, Michal v Kocevar-Desman, Tom | 6-2,6-1 |