Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| 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 Vejle | 2021/07/26 14:40 | Yannik Steinegger v Leonardo Catani | 5-7,6-2,10-4 |
| ITF M15 Vejle | 2021/07/25 11:00 | Yannik Steinegger v Johannes Ingildsen | 6-4,6-2 |
| ITF M15 Sozopol | 2021/10/05 06:30 | Nikolay Nedelchev v Michael Gloeckler | 6-0,6-3 |
| ITF M15 Sozopol | 2021/10/04 07:00 | Nikolay Nedelchev v Martin Iliev | 4-6,6-0,10-4 |
| ITF M15 Sozopol | 2021/10/03 08:00 | Alessandro Procopio v Nikolay Nedelchev | 4-6,4-6 |
| ITF M15 Sozopol | 2021/09/14 07:00 | Richard Biagiotti v Nikolay Nedelchev | 6-2,7-5 |
| ITF M15 Sozopol | 2021/09/13 08:00 | Nikolay Nedelchev v Dian Nedev | 6-3,6-1 |
| ITF M15 Valldoreix | 2020/11/10 09:00 | Alexander Weis v Nikolay Nedelchev | 6-3,7-5 |
| ITF M15 Valldoreix | 2020/11/09 09:00 | Kuzey Cekirge v Nikolay Nedelchev | 5-7,7-5,2-10 |
| ITF M15 Valldoreix | 2020/11/08 10:00 | Nikolay Nedelchev v Carlos Sanchez Jover | 6-4,0-6,10-5 |