Stadium: Court 3 Round: 54 Ground: Clay
| ITF M15 Anif | 2020/08/25 13:25 | Alexander Erler v Riccardo Balzerani | 3-6,0-6 |
| ITF M25 Vogau | 2020/08/19 13:00 | Gijs Brouwer v Alexander Erler | 6-1,6-0 |
| ITF M25 Vogau | 2020/08/17 11:30 | Alexander Erler v Sebastian Prechtel | 6-4,4-6,10-8 |
| ITF M25 Vogau | 2020/08/17 09:00 | Alexander Erler v Daniil Glinka | 6-1,7-6 |
| ITF M25 Vogau | 2020/08/16 07:30 | Alexander Erler v Anze Arh | 6-3,6-1 |
| Austrian Tennis Championship | 2020/07/21 15:40 | Alexander Erler v Philip Bachmaier | 6-3,6-3 |
| Thiems Seven Austrian Young Guns | 2020/07/10 09:00 | Alexander Erler v Lucas Miedler | 4-1,4-1 |
| Thiems Seven Austrian Young Guns | 2020/07/08 16:30 | Alexander Erler v Sebastian Ofner | 4-3,2-4,3-4 |
| Swiss Tennis Masters | 2020/07/07 12:30 | Yannik Steinegger v Johan Nikles | 3-6,2-6 |
| Swiss Tennis Masters | 2020/07/05 10:30 | Nicolas Parizzia v Yannik Steinegger | 4-6,2-6 |
| Swiss Tennis Masters | 2020/07/04 10:30 | Gian Gruenig v Yannik Steinegger | 7-5,3-6,0-6 |
| Swiss Tennis Masters | 2020/07/03 13:00 | Raphael Baltensperger v Yannik Steinegger | 6-4,2-6,6-2 |
| Swiss Tennis Masters | 2020/07/01 15:00 | Luca Margaroli v Yannik Steinegger | 2-6,6-2,4-6 |
| ITF M15 Loule | 2020/03/11 10:30 | Yannik Steinegger v Marvin Moeller | 3-6,4-6 |
| ITF M15 Loule | 2020/03/09 18:05 | Yannik Steinegger v Gabriele Moghini | 6-0,7-6 |
| ITF M15 Loule | 2020/03/09 13:00 | Yannik Steinegger v Andre Rodeia | 6-7,6-2,10-6 |