Stadium: Court 4 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Tallahassee | 2019/12/04 20:55 | Alex Knaff v Jason Kros | 6-1,3-6,6-7 |
| ITF M15 Tabarka | 2019/05/20 13:00 | Alex Knaff v Mauro De Maio | 6-7,6-2,8-10 |
| ITF USA F35 | 2018/12/03 15:00 | Paul Oosterbaan v Alex Knaff | 7-6,6-4 |
| ITF USA F32 | 2018/11/15 16:00 | Alex Knaff v Ricardo Rodriguez-Pace | 2-6,2-6 |
| ITF Belgium F8 | 2018/08/15 09:30 | Germain Gigounon v Alex Knaff | 6-0,6-2 |
| ITF Belgium F8 | 2018/08/14 09:00 | Guillaume Dermiens v Alex Knaff | 1-6,4-6 |
| ITF Germany F11 | 2018/08/08 10:00 | Alex Knaff v Evan Furness | 0-6,7-5,3-6 |
| ITF Germany F11 | 2018/08/07 09:00 | Marco Neubau v Alex Knaff | 4-6,7-5,3-6 |