Stadion: Klenert Court Round: 54 Ground: Clay
| ITF - M15 - Bukarest | 2019/05/20 09:00 | Ivan Mikhaylyuk v Adrian Oetzbach | 7-6,6-4 |
| ITF - M15 - Kalmar | 2019/05/15 11:50 | Adrian Oetzbach v George Botezan | 5-7,3-6 |
| ITF - M15 - Kalmar | 2019/05/14 08:15 | Martins Rocens v Adrian Oetzbach | 7-6,2-6,1-10 |
| ITF - M15 - Kalmar | 2019/05/13 11:30 | Edis Nokic v Adrian Oetzbach | 1-6,3-6 |
| ITF - USA F24 | 2018/09/13 18:05 | Matej Vocel v Adrian Oetzbach | 6-0,6-1 |
| ITF - USA F24 | 2018/09/12 16:30 | Adrian Oetzbach v Jianhui Li | 6-4,6-4 |
| ITF - USA F24 | 2018/09/10 17:00 | Adrian Oetzbach v Ishaan Ravichander | 6-3,6-1 |
| ITF - USA F24 | 2018/09/09 18:00 | Adrian Oetzbach v Bradley Frye | 1-6,6-4,7-6 |
| ITF - M15 - Tabarka | 2019/05/17 09:00 | Mohamed Aziz Dougaz v Constantin Schmitz | 7-6,6-1 |
| ITF - M15 - Tabarka | 2019/05/16 12:45 | Alessandro Ingarao v Constantin Schmitz | 2-6,1-6 |
| ITF - M15 - Tabarka | 2019/05/15 08:00 | Hugo Schott v Constantin Schmitz | 1-6,4-6 |
| ITF - M15 - Troisdorf | 2019/05/10 10:00 | Constantin Schmitz v Kacper Zuk | 4-6,2-6 |
| ITF - M15 - Troisdorf | 2019/05/09 11:20 | Daniel De Jonge v Constantin Schmitz | 3-6,1-6 |
| ITF - M15 - Troisdorf | 2019/05/09 08:00 | Kai Wehnelt v Constantin Schmitz | 2-6,2-6 |
| ITF - M15 - Troisdorf | 2019/05/07 08:00 | Constantin Schmitz v Tomas Lipovsek Puches | 6-2,6-3 |
| ITF - M15 - Tabarka | 2019/04/26 11:45 | Constantin Schmitz v Geoffrey Blancaneaux | 5-7,0-6 |