Stadium: Court 2 Round: 46
| ITF Turkey F32 | 2017/09/01 11:00 | Wilson Leite v Sieber, Marc | 3-6,2-6 |
| ITF Turkey F32 | 2017/08/31 12:00 | Felipe Meligeni Rodrigues Alves v Sieber, Marc | 3-6,5-7 |
| ITF Turkey F32 | 2017/08/30 12:00 | Rieder, Horst v Sieber, Marc | 1-6,1-6 |
| ITF Germany F12 | 2017/08/25 15:10 | Sieber, Marc v Louis Wessels | 6-3,3-6,4-6 |
| ITF Germany F12 | 2017/08/24 10:15 | Sieber, Marc v Schmidt, Gabriel | 6-3,6-4 |
| ITF Germany F12 | 2017/08/23 15:00 | Sieber, Marc v Link, Joel Vincent | 6-4,6-1 |
| Challenger Meerbusch | 2017/08/17 11:00 | Sieber, Marc v Karim-Mohamed Maamoun | 2-6,3-6 |
| Challenger Meerbusch | 2017/08/15 17:00 | Brown, Dustin v Sieber, Marc | 2-6,2-6 |
| Challenger Istanbul Qual | 2017/09/09 07:00 | Griekspoor, Kevin v Ghedin, Riccardo | 6-7,6-4,6-3 |
| ITF Latvia F1 | 2017/08/01 10:35 | Griekspoor, Kevin v Andrey Chepelev | 3-6,6-3,6-7 |
| ITF Belgium F6 | 2017/07/25 08:00 | Aubone, Franco David v Griekspoor, Kevin | 6-2,6-3 |
| Challenger Scheveningen Qual | 2017/07/15 12:15 | Dischinger, Eduardo v Griekspoor, Kevin | 7-5,4-6,6-0 |
| ITF Netherlands F4 | 2017/07/11 15:35 | Griekspoor, Kevin v Gijs Brouwer | 4-6,6-4,4-6 |
| ITF Netherlands F3 | 2017/07/05 10:00 | Griekspoor, Kevin v Meis, Pascal | 6-7,2-6 |
| ITF Netherlands F3 | 2017/07/04 13:45 | Griekspoor, Kevin v Michiel de Krom | 6-1,6-4 |
| ITF Tunisia F24 | 2017/06/24 11:30 | Lucas Miedler v Griekspoor, Kevin | 7-5,6-4 |