Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ITF Germany F3 | 2018/02/02 12:00 | Boy Westerhof v Igor Sijsling | 6-7,5-7 |
| ITF Great Britain F2 | 2018/02/08 15:10 | Igor Sijsling v Gregoire Barrere | 6-7,2-6 |
| ITF Great Britain F2 | 2018/02/06 10:00 | Billy Harris v Igor Sijsling | 1-6,1-6 |
| ITF Germany F3 | 2018/02/04 12:00 | Igor Sijsling v Marvin Moeller | 6-2,7-6 |
| 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 Germany F3 | 2018/02/02 12:00 | Boy Westerhof v Igor Sijsling | 6-7,5-7 |
| ITF Germany F3 | 2018/02/01 11:00 | Boy Westerhof v Remi Boutillier | 6-3,7-5 |
| ITF Germany F3 | 2018/01/30 10:00 | Boy Westerhof v Mick Veldheer | 6-3,6-4 |
| ITF Germany F2 | 2018/01/25 12:45 | Boy Westerhof v Jan Choinski | 4-6,1-6 |
| ITF Germany F2 | 2018/01/23 13:15 | Boy Westerhof v Juan Pablo Paz | 7-6,7-6 |
| ITF France F1 | 2018/01/14 14:00 | Gregoire Barrere v Boy Westerhof | 6-4,7-5 |
| ITF France F1 | 2018/01/13 15:25 | Gregoire Jacq v Boy Westerhof | 6-2,1-6,6-7 |
| ITF France F1 | 2018/01/12 10:00 | Alen Avidzba v Boy Westerhof | 6-7,2-6 |