Stadium: Court 5 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Sozopol | 2021/10/10 13:30 | Yannik Steinegger v Sebastian Bahamondes | 6-1,6-2 |
| ITF M15 Sozopol | 2021/10/07 07:00 | Yan Bondarevskiy v Yannik Steinegger | 6-3,6-4 |
| ITF M15 Sozopol | 2021/10/06 07:00 | Dan Alexandru Tomescu v Yannik Steinegger | 3-6,6-7 |
| ITF M25 Sierre | 2021/09/02 10:45 | Remy Bertola v Yannik Steinegger | 6-4,6-3 |
| ITF M25 Sierre | 2021/09/01 11:35 | Yannik Steinegger v Alexander Weis | 6-7,7-6,6-3 |
| ITF M25 Trier | 2021/08/25 11:00 | Yannik Steinegger v Louis Wessels | 5-7,3-6 |
| ITF M25 Trier | 2021/08/23 14:45 | Yannik Steinegger v Alex Knaff | 6-3,6-1 |
| ITF M25 Muttenz | 2021/08/18 14:50 | Yannik Steinegger v Calvin Hemery | 6-7,1-6 |
| ITF M15 Vyshkovo | 2021/09/20 06:00 | Federico Campana v Ainius Sabaliauskas | 7-5,2-6,10-6 |
| ITF M15 Chornomorsk | 2021/09/01 07:00 | Yan Bondarevskiy v Ainius Sabaliauskas | 7-5,6-2 |
| ITF M15 Chornomorsk | 2021/08/30 12:00 | Maik Steiner v Ainius Sabaliauskas | 7-5,6-7,4-10 |
| ITF M15 Chornomorsk | 2021/08/30 07:00 | Ainius Sabaliauskas v Alexey Dubinin | 6-1,6-1 |
| ITF M15 Chornomorsk | 2021/08/29 09:30 | Ainius Sabaliauskas v Mykyta Rassolov | 6-1,6-2 |
| ITF M15 Vilnius | 2019/07/10 10:30 | Ainius Sabaliauskas v Savriyan Danilov | 3-6,3-6 |
| ITF Lithuania F1 | 2018/07/21 10:00 | Ainius Sabaliauskas v Matas Vasiliauskas | 4-6,4-6 |
| Davis Cup | 2018/02/04 11:55 | Ainius Sabaliauskas v Jurgen Zopp | 0-6,1-6 |