Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Cancún | 2022/06/03 23:05 | Alex Knaff v Joshua Sheehy | 6-3,7-6 |
| ITF M15 East Lansing | 2021/11/16 16:00 | Joshua Sheehy v Alex Knaff | 3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2023/03/07 08:00 | Joshua Sheehy v Peter Nad | 3-6,6-4,10-5 |
| ITF M15 Sharm El Sheikh | 2023/03/06 08:00 | Joshua Sheehy v Artem Alekseychuk | 6-4,6-3 |
| ITF M15 Sharm El Sheikh | 2023/03/01 08:00 | Joshua Sheehy v Fajing Sun | 6-3,5-7,6-7 |
| ITF M15 Sharm El Sheikh | 2023/02/28 08:00 | Joshua Sheehy v Gabriele Bosio | 6-1,7-6 |
| ITF M15 Sharm El Sheikh | 2023/02/27 10:00 | Joshua Sheehy v Alessio Zanotti | 7-6,6-1 |
| ITF M15 Sharm El Sheikh | 2023/02/26 11:30 | Joshua Sheehy v Alberto Morolli | 6-0,6-3 |
| ITF M15 Sharm El Sheikh | 2023/02/23 08:00 | Joshua Sheehy v Lukas Krainer | 3-6,4-6 |
| ITF M15 Sharm El Sheikh | 2023/02/22 09:50 | Johannes Ingildsen v Joshua Sheehy | 4-6,6-2,1-6 |
| ITF M15 Sharm El Sheikh | 2023/03/01 14:15 | Lukas Pokorny v Alex Knaff | 3-6,6-2,6-1 |
| ITF M25 Faro | 2023/02/20 10:00 | Alex Knaff v Francois Musitelli | 2-6,4-6 |
| ITF M25 Faro | 2023/02/19 10:00 | Alex Knaff v Tomas Tenil | 6-2,6-0 |
| Davis Cup | 2023/02/05 13:30 | Alex Knaff v Kris Van Wyk | 3-6,6-3,6-4 |
| Davis Cup | 2023/02/04 13:00 | Alex Knaff v Alec Beckley | 4-6,6-3,6-3 |
| ITF M25 Manacor | 2023/01/27 14:40 | Abedallah Shelbayh v Alex Knaff | 3-6,6-3,6-3 |
| ITF M25 Manacor | 2023/01/26 11:00 | Coleman Wong v Alex Knaff | 1-6,1-6 |
| ITF M25 Manacor | 2023/01/24 14:35 | Alex Knaff v Rudolf Molleker | 6-4,2-6,7-6 |