Stadium: Court 3 Round: 25 Ground: Hardcourt indoor
| Challenger Eckental | 2017/11/02 12:30 | Igor Sijsling v Jerzy Janowicz | 6-7,3-6 |
| Challenger Eckental | 2017/10/31 16:55 | Evan Furness v Igor Sijsling | 3-6,2-6 |
| Challenger Ismaning | 2017/10/18 13:20 | Igor Sijsling v Tristan Lamasine | 6-4,1-6,6-7 |
| Challenger Ismaning | 2017/10/16 15:00 | Alex De Minaur v Igor Sijsling | 4-6,1-6 |
| Challenger Ortisei | 2017/10/10 10:30 | Igor Sijsling v Marc Sieber | 1-6,4-6 |
| ITF France F22 | 2017/10/07 14:10 | Marek Jaloviec v Igor Sijsling | 6-7,6-4,6-3 |
| ITF France F22 | 2017/10/06 16:00 | Igor Sijsling v Gianni Mina | 7-6,6-2 |
| ITF France F22 | 2017/10/05 12:30 | Jules Okala v Igor Sijsling | 4-6,3-6 |
| Challenger Bratislava Qual | 2017/11/06 09:00 | Matteo Viola v Niels Desein | 6-3,6-7,2-6 |
| Challenger Bratislava Qual | 2017/11/05 10:40 | Niels Desein v Kevin Krawietz | 6-7,6-4,6-4 |
| Challenger Bratislava Qual | 2017/11/04 11:30 | Andrei Vasilevski v Niels Desein | 4-6,4-6 |
| Challenger Eckental Qual | 2017/10/28 11:15 | Niels Desein v Kevin Krawietz | 6-3,4-6,6-7 |
| ITF France F23 | 2017/10/12 10:00 | Niels Desein v Gregoire Jacq | 4-6,4-6 |
| ITF France F23 | 2017/10/10 15:30 | Niels Desein v Sebastien Boltz | 6-1,6-2 |
| ITF France F22 | 2017/10/03 15:45 | Niels Desein v Corentin Denolly | 5-7,3-6 |
| ITF Portugal F20 | 2017/09/27 09:30 | Niels Desein v Pedja Krstin | 4-6,4-6 |