| Austrian Pro Series | 2020/06/01 08:00 | Alexander Erler v Tristan-Samuel Weissborn | 6-4,7-6 |
| Austrian Pro Series | 2020/05/30 11:20 | Dennis Novak v Alexander Erler | 7-6,5-7,6-2 |
| ITF M15 Heraklion | 2020/03/06 08:30 | Alexander Erler v Alexander Lebedev | 3-6,3-6 |
| ITF M15 Heraklion | 2020/03/05 10:20 | Alexander Erler v Ioannis Xilas | 7-6,6-4 |
| ITF M15 Heraklion | 2020/03/04 08:30 | Alexander Erler v Sean Hodkin | 6-2,6-1 |
| ITF M25 Trento | 2020/03/01 09:25 | Ruben Bemelmans v Alexander Erler | 4-6,6-2,6-4 |
| ITF M25 Trento | 2020/02/29 12:00 | Julian Ocleppo v Alexander Erler | 4-6,2-6 |
| ITF M25 Trento | 2020/02/28 11:55 | Raul Brancaccio v Alexander Erler | 1-6,7-6,1-6 |
| Austrian Pro Series | 2020/06/01 11:55 | Dennis Novak v Lukas Neumayer | 6-1,3-6,6-4 |
| Austrian Pro Series | 2020/05/29 09:30 | Tristan-Samuel Weissborn v Lukas Neumayer | 6-7,6-7 |
| ITF M15 Monastir | 2020/03/11 15:30 | Savva Polukhin v Lukas Neumayer | 6-3,7-5 |