Round: 25 Ground: Hardcourt outdoor
| ITF Poland F2 | 2015/08/20 09:55 | Kostin, Viktor v Michon, Axel | 2-6,3-6 |
| ITF Poland F2 | 2015/08/20 09:55 | Kostin, Viktor v Michon, Axel | 2-6,3-6 |
| ITF Poland F2 | 2015/08/19 08:00 | Mylokostov, Denys v Kostin, Viktor | 1-6,6-7 |
| ITF Poland F2 | 2015/08/18 08:00 | 스몰라, 마치에이 v Kostin, Viktor | 4-6,6-3,6-7 |
| ITF Poland F2 | 2015/08/16 08:00 | Mlazga, Adam v Kostin, Viktor | 4-6,7-6,3-6 |
| ITF Germany F10 Qual | 2015/08/02 10:30 | Kostin, Viktor v Freimuth, Jesper Tull | 3-6,6-2,5-7 |
| ITF Tunisia F7 | 2014/11/10 10:30 | Kostin, Viktor v Hirschmueller, Christian | 6-7,2-6 |
| Tunisia F6, Singles Qualifying | 2014/11/05 10:30 | Kostin, Viktor v 디에즈, 스테벤 | 4-6,6-3,2-6 |
| ITF Germany F17 | 2014/10/21 15:30 | Schmid, Michal v Kostin, Viktor | 6-2,7-6 |
| ITF Poland F2 | 2015/08/23 09:00 | Michon, Axel v Gawron, Marcin | 6-3,6-4 |
| ITF Poland F2 | 2015/08/22 11:05 | 에리크슨, 마르쿠스 v Michon, Axel | 2-6,5-7 |
| ITF Poland F2 | 2015/08/21 13:25 | 라지스키, 마치에이 v Michon, Axel | 2-6,3-6 |
| ITF Poland F2 | 2015/08/20 09:55 | Kostin, Viktor v Michon, Axel | 2-6,3-6 |
| ITF Poland F2 | 2015/08/19 08:00 | 안들제이크주크, 아드리안 v Michon, Axel | 2-6,4-6 |
| Challenger Prague 2 | 2015/08/15 09:00 | Michon, Axel v 알보트, 라두 | 5-7,5-7 |
| Challenger Prague 2 | 2015/08/14 11:00 | Michon, Axel v 볼레리, 시몬 | 6-2,4-6,7-6 |
| Challenger Prague 2 | 2015/08/13 09:00 | 무노즈-데 라 나바, 다니엘 v Michon, Axel | 3-6,2-6 |