Round: 1
| ATP Kitzbuhel Qual | 2017/07/30 09:30 | Santiago Giraldo v Jozef Kovalik | 7-5,6-4 |
| ATP Kitzbuhel Qual | 2017/07/29 09:00 | Gastao Elias v Jozef Kovalik | 1-6,7-5,4-6 |
| Challenger Prague | 2017/07/25 10:35 | Zdenek Kolar v Jozef Kovalik | 2-6,6-3,6-4 |
| Challenger Scheveningen | 2017/07/19 13:35 | Stefanos Tsitsipas v Jozef Kovalik | 7-5,6-1 |
| Challenger Scheveningen | 2017/07/18 09:00 | Daniel Brands v Jozef Kovalik | 3-6,6-7 |
| Challenger Braunschweig | 2017/07/13 12:20 | Nicola Kuhn v Jozef Kovalik | 7-6,5-7,7-6 |
| Challenger Braunschweig | 2017/07/12 09:00 | Jozef Kovalik v Marco Cecchinato | 6-2,6-4 |
| Challenger Braunschweig | 2017/07/11 13:10 | Jozef Kovalik v Thiago Monteiro | 6-3,7-6 |
| Challenger Liberec Qual | 2017/07/29 08:30 | Michal Schmid v Marek Gengel | 7-6,6-2 |
| Challenger Prague Qual | 2017/07/23 11:00 | Lenny Hampel v Marek Gengel | 7-6,6-1 |
| Challenger Prague Qual | 2017/07/22 09:20 | Marek Gengel v Mate Delic | 6-1,6-2 |
| ITF Czech Republic F6 | 2017/07/19 12:25 | Marek Gengel v Lukas Klein | 5-7,1-6 |
| ITF Czech Republic F6 | 2017/07/17 09:30 | Juan Ignacio Galarza v Marek Gengel | 3-6,6-7 |
| ITF Czech Republic F5 | 2017/07/11 15:15 | Petr Michnev v Marek Gengel | 4-6,7-5,6-1 |
| ITF Czech Republic F4 | 2017/07/06 08:30 | Marek Jaloviec v Marek Gengel | 7-6,6-3 |
| ITF Czech Republic F4 | 2017/07/05 08:00 | Petr Hajek v Marek Gengel | 0-6,3-6 |