Stadium: Court 1 Round: 25 Ground: Carpet indoor
| ITF M15 Caslano | 2020/08/31 08:55 | Alexander Erler v Yannik Steinegger | 4-6,3-6 |
| ITF M15 Grenoble | 2021/02/07 14:55 | Yannik Steinegger v Jurgen Briand | 3-6,7-6,8-10 |
| ITF M15 Bratislava | 2020/11/25 15:05 | Savriyan Danilov v Yannik Steinegger | 6-4,3-6,6-2 |
| ITF M15 Sarreguemines | 2020/10/26 13:30 | Yannik Steinegger v Louis Dussin | 4-6,5-7 |
| ITF M15 Sarreguemines | 2020/10/25 15:30 | Ugo Blanchet v Yannik Steinegger | 4-6,6-3,7-10 |
| ITF M15 Forbach | 2020/09/30 08:30 | Alexis Gautier v Yannik Steinegger | 7-5,6-3 |
| ITF M15 Forbach | 2020/09/28 16:20 | Samuel Brosset v Yannik Steinegger | 6-4,3-6,10-12 |
| ITF M15 Forbach | 2020/09/28 12:30 | Jakob Schnaitter v Yannik Steinegger | 5-7,2-6 |
| ITF M25 Klosters | 2020/09/16 08:45 | Yannik Steinegger v Gonzalo Lama | 3-6,7-6,3-6 |
| ITF M15 Bratislava | 2021/03/03 09:00 | Jurgen Briand v Alexander Erler | 6-7,7-6,7-5 |
| ITF M15 Monastir | 2021/02/26 11:15 | Alexander Erler v Lilian Marmousez | 5-7,2-6 |
| ITF M15 Monastir | 2021/02/25 07:55 | Alexander Erler v Colin Sinclair | 7-6,5-7,6-1 |
| ITF M15 Monastir | 2021/02/23 11:10 | Alexander Erler v Ryota Tanuma | 6-4,6-4 |
| ITF M15 Monastir | 2021/02/20 09:55 | Gauthier Onclin v Alexander Erler | 6-3,7-5 |
| ITF M15 Monastir | 2021/02/19 10:25 | Alexander Erler v Jose Fco. Vidal Azorin | 6-4,4-6,6-4 |
| ITF M15 Monastir | 2021/02/18 10:35 | Alexander Erler v Tom Kocevar-Desman | 6-1,6-7,6-3 |
| ITF M15 Monastir | 2021/02/17 11:40 | Alexander Erler v Raphael Collignon | 6-4,3-6,6-2 |