Stadium: M Round: 29 Ground: Carpet indoor
| ITF Germany F3 | 2018/02/03 13:40 | Botic Van De Zandschulp v Igor Sijsling | 4-6,5-7 |
| ITF Germany F3 | 2018/02/02 12:00 | Boy Westerhof v Igor Sijsling | 6-7,5-7 |
| ITF Germany F3 | 2018/02/01 13:50 | Hugo Voljacques v Igor Sijsling | 5-7,0-6 |
| ITF Germany F3 | 2018/01/31 17:50 | Igor Sijsling v Fabien Reboul | 6-4,6-4 |
| ITF France F3 | 2018/01/25 12:55 | Igor Sijsling v Albano Olivetti | 3-6,6-4,3-6 |
| ITF France F3 | 2018/01/23 13:55 | Igor Sijsling v Yann Marti | 6-3,6-0 |
| Challenger Andria | 2017/11/22 15:10 | Zdenek Kolar v Igor Sijsling | 6-3,6-3 |
| Challenger Andria | 2017/11/21 12:40 | Constant Lestienne v Igor Sijsling | 4-6,6-2,4-6 |
| ITF Germany F3 | 2018/02/03 12:00 | Marvin Moeller v Sebastien Boltz | 6-4,6-4 |
| ITF Germany F3 | 2018/02/02 17:00 | Marvin Moeller v Peter Torebko | 1-6,6-4,6-2 |
| ITF Germany F3 | 2018/02/01 20:05 | Yannik Reuter v Marvin Moeller | 3-6,1-6 |
| ITF Germany F3 | 2018/01/30 18:05 | Marvin Moeller v Yan Sabanin | 6-2,6-3 |
| Challenger Koblenz | 2018/01/16 10:00 | Yasutaka Uchiyama v Marvin Moeller | 6-3,6-1 |
| ITF Czech Republic F10 | 2017/11/19 12:00 | Marek Jaloviec v Marvin Moeller | 7-6,6-2 |
| ITF Czech Republic F10 | 2017/11/18 10:00 | Petr Nouza v Marvin Moeller | 5-7,7-6,2-6 |
| ITF Czech Republic F10 | 2017/11/16 13:05 | Marvin Moeller v Matthieu Roy | 7-5,6-2 |