Stadium: Court 4 Round: 26 Ground: Clay
| UTR Pro Hilversum | 2023/06/11 06:00 | Arthur Nagel v Masato Perera | 6-3,2-6,6-3 |
| UTR Pro Hilversum | 2023/06/10 09:00 | Arthur Nagel v Julian Cundom | 6-4,6-4 |
| UTR Pro Hilversum | 2023/06/09 07:30 | Arthur Nagel v Sander Jong | 6-2,4-6,2-6 |
| UTR Pro Hilversum | 2023/06/08 08:45 | Arthur Nagel v Karim Al-Amin | 7-6,7-6 |
| UTR Pro Hilversum | 2023/06/07 10:10 | Ole Bredschneijder v Arthur Nagel | 1-6,2-5 |
| UTR Pro Hilversum | 2023/06/06 06:00 | Twan Van Zijl v Arthur Nagel | 2-6,6-7 |
| ITF M15 Lons-le-Saunier | 2023/04/03 09:35 | Tiran Sanghera v Arthur Nagel | 7-6,6-0 |
| ITF M25 Saint Dizier | 2023/03/26 08:00 | Maxence Rivet v Arthur Nagel | 6-4,2-6,10-6 |
| ITF M15 Duffel | 2023/06/13 10:00 | Alex Knaff v Michiel de Krom | 6-7,3-6 |
| ITF M15 Pazardzhik | 2023/05/26 07:00 | Leonardo Rossi v Alex Knaff | 6-1,6-3 |
| ITF M15 Pazardzhik | 2023/05/25 07:00 | Marco Miceli v Alex Knaff | 6-2,1-6,3-6 |
| ITF M15 Pazardzhik | 2023/05/20 09:45 | Alex Knaff v Iliyan Radulov | 4-6,2-6 |
| ITF M15 Pazardzhik | 2023/05/19 11:20 | Alex Knaff v Nicolas Buitrago | 4-6,6-3,6-2 |
| ITF M15 Pazardzhik | 2023/05/18 15:35 | Alex Knaff v Ioannis Xilas | 7-5,7-5 |
| ITF M25 Nottingham | 2023/04/26 12:35 | Alex Knaff v George Loffhagen | 2-6,6-7 |
| ITF M25 Sharm El Sheikh | 2023/04/21 08:30 | Kris Van Wyk v Alex Knaff | 6-3,6-1 |