Round: 44 Ground: Clay
| ITF Germany F4 | 2018/06/16 08:00 | Matthew Dellavedova v Lucas Hellfritsch | 6-4,6-1 |
| ITF Turkey F14 | 2018/04/08 07:30 | Lucas Hellfritsch v Santiago Maresca | 3-6,5-7 |
| ITF Turkey F14 | 2018/04/07 11:00 | Niklas Guttau v Lucas Hellfritsch | 4-6,3-6 |
| ITF Turkey F13 | 2018/03/31 11:00 | Francisco Cerundolo v Lucas Hellfritsch | 6-4,6-2 |
| ITF Portugal F6 Qual | 2018/03/24 13:00 | Lucas Hellfritsch v Martim L Prata | 6-4,4-6,3-6 |
| ITF Portugal F4 | 2018/03/13 11:00 | Lucas Hellfritsch v Miliaan Niesten | 0-6,2-6 |
| ITF Portugal F4 | 2018/03/12 10:00 | Guillaume Dermiens v Lucas Hellfritsch | View |
| ITF Portugal F4 | 2018/03/10 11:00 | Lucas Hellfritsch v Loic Perret | 7-6,7-6 |
| ITF Belgium F2 | 2018/06/28 14:10 | Juan Pablo Varillas v Boris Fassbender | 4-6,6-4,6-2 |
| ITF Belgium F2 | 2018/06/27 16:10 | Boris Fassbender v Omar Salman | 3-6,7-5,6-3 |
| ITF Egypt F14 | 2018/04/19 08:00 | Boris Fassbender v Marat Deviatiarov | 4-6,3-6 |
| ITF Egypt F14 | 2018/04/18 09:05 | Michael Zhu v Boris Fassbender | 6-3,3-6,4-6 |
| ITF Egypt F14 | 2018/04/16 08:30 | Dominic Weidinger v Boris Fassbender | 2-6,5-7 |
| ITF Egypt F14 | 2018/04/15 09:30 | Boris Fassbender v Ajay Pruthvi Nemakal | 6-0,6-2 |
| ITF Egypt F13 | 2018/04/07 10:30 | Boris Fassbender v Joy Vigani | 4-6,6-7 |
| ITF Egypt F12 | 2018/04/01 10:30 | Vladyslav Orlov v Boris Fassbender | 7-5,6-0 |