Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/08/18 07:30 | Masamichi Imamura v Mattias Southcombe | 6-3,6-1 |
| ITF - M15 Monastir | 2021/08/08 09:30 | Mattias Southcombe v Hamzeh Al-Aswad | 6-0,1-6,7-10 |
| ITF - M15 Monastir | 2021/08/01 09:00 | Stefan Vujic v Mattias Southcombe | 7-5,2-6,10-7 |
| ITF - M15 Monastir | 2021/09/06 11:00 | Alex Knaff v Masamichi Imamura | 6-2,3-6,3-10 |
| ITF - M15 Monastir | 2021/09/05 11:00 | Tom Dynka v Alex Knaff | 0-6,0-6 |
| ITF - M15 Monastir | 2021/09/01 11:05 | Alex Knaff v Felix Corwin | 7-5,6-7,3-6 |
| ITF - M15 Monastir | 2021/08/31 08:00 | Yuta Kawahashi v Alex Knaff | 7-5,4-6,7-10 |
| ITF - M15 Monastir | 2021/08/30 13:00 | Alex Knaff v Egor Tsarapkin | 6-3,6-3 |
| ITF - M25 Trier | 2021/08/23 14:45 | Yannik Steinegger v Alex Knaff | 6-3,6-1 |
| ITF - M25 Trier | 2021/08/23 09:00 | Alex Knaff v Jeremy Schifris | 6-3,7-6 |
| ITF - M25 Koksijde | 2021/08/15 10:15 | Jakub Wojcik v Alex Knaff | 6-3,4-6,10-8 |