Stadium: Center Court Round: 46 Ground: Carpet indoor
| Challenger Ismaning | 2018/10/13 13:10 | Lukas Ollert v Marek Gengel | 3-6,3-6 |
| ITF Egypt F22 | 2018/10/09 08:00 | Marek Gengel v Kacper Zuk | 7-6,3-6,4-6 |
| ITF Egypt F21 | 2018/10/05 08:00 | Marek Gengel v Jaimee Floyd Angele | 6-3,2-6,4-6 |
| ITF Egypt F21 | 2018/10/04 08:00 | Marek Gengel v Daniil Glinka | 7-6,6-4 |
| ITF Egypt F21 | 2018/10/03 09:25 | Marek Gengel v Juan C Garcia Garcia | 6-1,6-3 |
| ITF Portugal F18 | 2018/09/28 14:00 | Marek Gengel v Yannick Mertens | 6-2,6-7,1-6 |
| ITF Portugal F18 | 2018/09/27 11:10 | Romain Barbosa v Marek Gengel | 4-6,4-6 |
| ITF Portugal F18 | 2018/09/26 14:05 | Marek Gengel v Simon Carr | 6-1,6-4 |
| Challenger Ismaning | 2018/10/13 11:35 | Johannes Haerteis v Manuel Guinard | 7-6,6-2 |
| ITF Sweden F5 | 2018/10/05 14:30 | Emil Ruusuvuori v Johannes Haerteis | 6-4,7-5 |
| ITF Sweden F5 | 2018/10/04 12:00 | Johannes Haerteis v George Botezan | 6-4,6-4 |
| ITF Sweden F5 | 2018/10/03 12:00 | Lucas Catarina v Johannes Haerteis | 5-7,2-6 |
| ITF Sweden F5 | 2018/10/02 12:00 | Johannes Haerteis v Antoine Bellier | 6-4,6-2 |
| ITF Sweden F4 | 2018/09/27 11:00 | Christopher Heyman v Johannes Haerteis | 6-3,4-6,6-4 |
| ITF Sweden F4 | 2018/09/24 11:00 | Johannes Haerteis v Fred Simonsson | 6-3,6-2 |
| Challenger Sibiu | 2018/09/16 10:35 | Johannes Haerteis v Julian Lenz | 4-6,4-6 |