| ITF M15 Vero Beach | 2022/04/28 17:15 | Alex Knaff v Ethan Quinn | 3-6,2-6 |
| ITF M15 Vero Beach | 2022/04/27 16:00 | Ricardo Rodriguez-Pace v Alex Knaff | 7-5,4-6,2-6 |
| Challenger Tallahassee | 2022/04/17 18:45 | Alex Knaff v Cristian Rodriguez | 2-6,3-6 |
| ITF M15 Sunrise | 2022/04/12 15:00 | Alex Knaff v Joao Victor C Loureiro | 6-3,2-6,7-10 |
| ITF M15 Sunrise | 2022/04/11 15:00 | Alex Knaff v Christian Lakoseljac | 6-4,5-7,10-6 |
| ITF M15 Monastir | 2022/03/25 10:20 | Alex Knaff v Maik Steiner | 1-6,4-6 |
| ITF M15 Monastir | 2022/03/24 08:00 | Arnaud Bovy v Alex Knaff | 3-6,7-5,5-7 |
| ITF M25 Monastir | 2022/03/23 12:00 | Alex Knaff v Jarno Jans | 6-4,6-3 |