Stadium: Court 1 Round: 25 Ground: Clay
| ITF Italy F1 Qual | 2018/02/24 08:30 | Alexander Wolfschmidt v Johannes Haerteis | 0-6,0-6 |
| ITF Switzerland F2 | 2018/02/14 09:00 | Lukas Klein v Johannes Haerteis | 6-4,7-6 |
| ITF Switzerland F2 | 2018/02/13 11:40 | Johannes Haerteis v Hugo Grenier | 4-6,6-3,7-6 |
| ITF Switzerland F2 Qual | 2018/02/11 10:00 | Johannes Haerteis v Stefan Fiacan | 6-2,6-1 |
| ITF Switzerland F1 | 2018/02/06 12:00 | Johannes Haerteis v Julian Lenz | 6-2,1-6,4-6 |
| ITF Switzerland F1 Qual | 2018/02/05 09:00 | Johannes Haerteis v Giordan Kunz | 6-3,6-3 |
| ITF Egypt F2 | 2018/01/24 09:40 | Johannes Haerteis v Youssef Hossam | 6-7,4-6 |
| ITF Egypt F2 | 2018/01/22 08:00 | Hugo Pierre v Johannes Haerteis | 6-7,1-6 |