Stadium: Court 3 Round: 25 Ground: Clay
| ITF Slovakia F2 | 2017/08/02 08:00 | Ken Onishi v Sebastien Boltz | 3-6,6-4,6-7 |
| ITF Slovakia F1 | 2017/07/29 11:25 | Artem Dubrivnyy v Ken Onishi | 7-5,3-6,6-0 |
| ITF Slovakia F1 | 2017/07/28 10:00 | Ken Onishi v Pavel Nejedly | 6-3,6-3 |
| ITF Slovakia F1 | 2017/07/27 12:15 | Ken Onishi v Tomas Liska | 6-2,6-1 |
| ITF Slovakia F1 | 2017/07/25 11:00 | Ken Onishi v Alessandro Ricci | 6-2,7-5 |
| ITF Austria F2 | 2017/07/10 11:00 | Ken Onishi v Jeremy Jahn | 3-6,6-7 |
| ITF Czech Republic F4 | 2017/07/05 10:30 | Jonathan Mridha v Ken Onishi | 6-2,6-1 |
| ITF Czech Republic F4 | 2017/07/04 09:35 | Ken Onishi v Michal Konecny | 3-6,6-4,7-5 |
| ITF Slovakia F2 | 2017/08/03 14:00 | Mate Valkusz v Danylo Kalenichenko | 6-4,1-6,6-4 |
| ITF Slovakia F2 | 2017/08/02 08:00 | David Szintai v Danylo Kalenichenko | 0-6,2-6 |
| ITF Slovakia F1 | 2017/07/30 09:00 | Danylo Kalenichenko v Artem Dubrivnyy | 6-4,3-6,6-2 |
| ITF Slovakia F1 | 2017/07/29 09:00 | Peter Nagy v Danylo Kalenichenko | 6-3,4-6,0-6 |
| ITF Slovakia F1 | 2017/07/28 11:55 | Danylo Kalenichenko v Nik Razborsek | 7-6,6-2 |
| ITF Slovakia F1 | 2017/07/27 09:00 | Danylo Kalenichenko v Paul Jubb | 6-1,6-2 |
| ITF Slovakia F1 | 2017/07/26 10:40 | Danylo Kalenichenko v David Juras | 6-2,6-1 |
| Challenger Poznan | 2017/07/18 13:00 | Danylo Kalenichenko v Florian Mayer | 1-6,4-6 |