| ITF M25 Oberentfelden | 2019/02/07 17:50 | Garanganga, Takanyi v Jerome Kym | 3-6,5-7 |
| ITF M25 Oberentfelden | 2019/02/06 18:10 | Jerome Kym v Ollert, Lukas | 6-2,7-6 |
| ITF M25 Oberentfelden | 2019/02/07 12:00 | Antoine Bellier v Lenz, Julian | 4-6,7-6,4-6 |
| ITF M25 Oberentfelden | 2019/02/05 12:00 | Stricker, Dominic Stephan v Lenz, Julian | 2-6,6-7 |
| Challenger - Koblenz | 2019/01/14 19:35 | Carlos Taberner v Lenz, Julian | 6-4,5-7,6-2 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/05 04:05 | Lenz, Julian v Velotti, Agustin | 5-7,6-2,6-2 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/04 02:00 | Lenz, Julian v Yuki Mochizuki | 6-7,6-1,6-2 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/03 02:00 | Saito, Takashi v Lenz, Julian | 3-6,1-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/01/02 03:20 | Lenz, Julian v Yeung, Pak Long | 6-1,6-4 |
| Houston, USA | 2018/11/12 21:45 | Lenz, Julian v Ernesto Escobedo | 6-4,3-6,6-7 |