Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2019/04/02 08:00 | Antonio Cayetano March v Lucas Hellfritsch | 4-6,3-6 |
| ITF M15 Sharm El Sheikh | 2019/04/01 08:00 | Joao P Alcantara v Lucas Hellfritsch | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/03/25 11:00 | Timur Kiyamov v Lucas Hellfritsch | 6-7,6-0,10-7 |
| ITF M15 Sharm El Sheikh | 2019/03/25 08:00 | Lucas Hellfritsch v Bastien Presuhn | 6-2,6-3 |
| ITF M15 Sharm El Sheikh | 2019/03/20 09:45 | Lucas Hellfritsch v Marko Miladinovic | 1-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/03/11 08:00 | Lucas Hellfritsch v Georgii Kravchenko | 4-6,7-5,4-10 |
| ITF Turkey F38 | 2018/11/30 13:55 | Lucas Hellfritsch v Dejan Katic | 6-3,1-6,2-6 |
| ITF Turkey F38 | 2018/11/27 08:55 | Lucas Hellfritsch v Vlad Cristian Niculae | 6-0,6-0 |
| ITF M15 Sharm El Sheikh | 2019/03/27 10:30 | Eduardo Struvay v Christian Seraphim | 6-4,6-0 |
| ITF - M15 Poitiers | 2019/03/13 11:55 | Joffrey De Schepper v Christian Seraphim | 6-2,6-2 |
| ITF M15 Toulouse | 2019/03/05 10:00 | Titouan Droguet v Christian Seraphim | 6-4,7-6 |
| ITF M25 Aktobe | 2019/02/19 08:25 | Konstantin Kravchuk v Christian Seraphim | 6-4,4-6,6-4 |
| ITF M25 Aktobe | 2019/02/13 10:35 | Christian Seraphim v Alejandro Tabilo | 4-6,3-6 |
| ITF M25 Oberentfelden | 2019/02/05 12:00 | Christian Seraphim v Elmar Ejupovic | 3-6,3-6 |
| ITF M15 Monastir | 2019/01/25 10:00 | Altug Celikbilek v Christian Seraphim | 6-3,6-0 |
| ITF M15 Monastir | 2019/01/24 11:05 | Tiago Cacao v Christian Seraphim | 3-6,4-6 |