Stadium: MTA 30 Round: 62 Ground: Clay
| ITF M25 Heraklion | 2023/10/29 09:00 | Alexander Nielsen v Andreas Loizas | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2023/10/09 08:15 | Giuseppe Corsaro v Alexander Nielsen | 6-4,3-6,12-10 |
| ITF M15 Sharm El Sheikh | 2023/10/08 11:00 | Alexander Nielsen v Leonardo Malgaroli | 6-3,4-6,10-8 |
| ITF M15 Sharm El Sheikh | 2023/10/03 08:25 | Sean Van Rensburg v Alexander Nielsen | 6-2,6-4 |
| ITF M15 Sharm El Sheikh | 2023/10/02 07:00 | Alexander Nielsen v Iacopo Sada | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2023/09/25 07:00 | Federico Salomone v Alexander Nielsen | 6-4,7-6 |
| ITF M15 Sharm El Sheikh | 2023/09/24 07:00 | Alexander Nielsen v Abdulmajeed Bukhari | 6-1,6-4 |
| ITF M25 Sharm El Sheikh | 2023/09/20 11:50 | Kris Van Wyk v Alexander Nielsen | 6-2,6-1 |
| ITF M15 Monastir | 2023/10/23 13:30 | Mika Lipp v Filippo Mazzola | 2-6,3-6 |
| ITF M15 Monastir | 2023/10/23 08:00 | Mika Lipp v Yuchen Pan | 6-0,6-1 |
| ITF M15 Monastir | 2023/10/22 08:00 | Mika Lipp v Matei Cristian Onofrei | 6-4,6-4 |
| ITF M15 Monastir | 2023/10/16 08:00 | Mika Lipp v Francesco Liucci | 6-7,4-6 |
| ITF M15 Monastir | 2023/10/15 08:00 | Mika Lipp v Tommaso Schold | 6-4,6-1 |
| ITF M15 Haren | 2023/09/06 11:30 | Kai Lemstra v Mika Lipp | 6-3,6-4 |
| ITF M15 Haren | 2023/09/05 08:00 | Michael Shaw v Mika Lipp | 3-6,3-6 |
| ITF M15 Haren | 2023/09/04 11:00 | Sam Bakker v Mika Lipp | 4-6,4-6 |