Stadium: Court 5 Round: 54 Ground: Hardcourt indoor
| ITF - M25 Setubal | 2021/10/05 10:00 | Arthur Cazaux v Alex Knaff | 6-1,6-7,10-5 |
| ITF - M25 Setubal | 2021/10/04 10:00 | Aditya Katticaren v Alex Knaff | 0-6,0-6 |
| ITF - M15 Forbach | 2021/09/27 13:30 | Millen Hurrion v Alex Knaff | 6-3,6-7,10-3 |
| ITF - M15 Forbach | 2021/09/26 12:50 | Alex Knaff v Julien De Cuyper | 6-4,6-0 |
| ITF - M15 Monastir | 2021/09/12 09:00 | Mattias Southcombe v Alex Knaff | 2-6,7-6,10-7 |
| 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 M25 Vero Beach | 2021/10/19 16:00 | Matthew Dellavedova v Juan Manuel Benitez Chavarriaga | 2-6,4-6 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Matthew Dellavedova v Shane Monroe | 6-3,6-4 |
| ITF - M15 Naples | 2021/10/13 16:30 | Fletcher Scott v Matthew Dellavedova | 6-1,2-6,6-1 |
| ITF - M15 Naples | 2021/10/11 14:30 | Matthew Dellavedova v Shane Monroe | 6-2,6-2 |
| ITF - M15 Ulčinj | 2021/09/23 09:30 | Matthew Dellavedova v Juan Pablo Paz | 3-6,2-6 |
| ITF - M15 Ulčinj | 2021/09/22 11:30 | Matthew Dellavedova v Hamid Reza Nadaf | 6-4,6-3 |
| ITF - M15 Ulčinj | 2021/09/20 12:00 | Matthew Dellavedova v Daiki Yoshimura | 6-1,6-0 |
| ITF - M15 Ulčinj | 2021/09/13 08:00 | Max Houkes v Matthew Dellavedova | 6-2,6-2 |