| ITF Belgium F1 | 2017/06/20 17:00 | Alex Knaff v Mirko Martinez | 6-7,2-6 |
| Davis Cup | 2017/04/07 07:50 | Alex Knaff v Arber Sulstarova | 6-2,6-0 |
| ITF USA F40 Qual | 2016/12/04 17:30 | Dragos Constantin Ignat v Alex Knaff | 6-2,6-7,6-2 |
| ITF USA F37 | 2016/11/13 18:00 | Strahinja Rakic v Alex Knaff | 6-3,6-4 |
| ITF USA F37 | 2016/11/12 19:00 | Alexandre Rotsaert v Alex Knaff | 3-6,4-6 |
| ITF USA F35 | 2016/10/28 22:00 | Mitchell Harper v Alex Knaff | 6-2,2-6,2-6 |
| ITF Slovakia F3 | 2016/08/07 07:30 | Piotr Matuszewski v Alex Knaff | 6-4,6-3 |
| ITF Slovakia F2 | 2016/07/31 06:30 | Petr Nouza v Alex Knaff | 7-5,6-2 |