Stadion: Court 2 Round: 44 Ground: Hardcourt outdoor
| 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 - Vejle | 2021/07/28 14:35 | Yannik Steinegger v Mats Rosenkranz | 1-6,6-3,4-6 |
| ITF - M15 - Forbach | 2021/09/26 07:30 | Sebastian Bahamondes v Lilian Breut | 1-6,1-6 |
| ITF - M25 - Plaisir | 2021/09/12 11:10 | Sebastian Bahamondes v Alessio Tramontin | 0-6,0-6 |
| ITF - M15 - Antalya | 2021/06/13 07:30 | Lorenzo Joaquin Rodriguez v Sebastian Bahamondes | 6-0,6-0 |
| ITF - M15 - Antalya | 2021/06/06 07:30 | Sebastian Bahamondes v Kirill Mishkin | 1-6,2-6 |
| ITF - M15 - Antalya | 2021/05/30 07:30 | Franco Roncadelli v Sebastian Bahamondes | 6-0,6-0 |
| ITF - M15 - Antalya | 2021/05/16 07:00 | Sebastian Bahamondes v Daisuke Sumizawa | 1-6,1-6 |