Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2023/11/16 08:00 | Kai Lemstra v Jakub Nicod | 6-7,6-1,3-6 |
| ITF M15 Heraklion | 2023/11/14 08:30 | Kai Lemstra v Nikolay Nedelchev | 3-6,6-4,6-1 |
| ITF M15 Selva Gardena | 2023/11/01 12:05 | Kai Lemstra v Hynek Barton | 4-6,4-6 |
| ITF M15 Selva Gardena | 2023/10/30 13:20 | Massimo Giunta v Kai Lemstra | 2-6,4-6 |
| ITF M15 Bad Waltersdorf | 2023/10/05 07:30 | Kai Lemstra v Vlad Andrei Dancu | 1-6,1-6 |
| ITF M15 Bad Waltersdorf | 2023/10/03 07:20 | Jakub Filip v Kai Lemstra | 0-6,0-6 |
| ITF M15 Satu Mare | 2023/09/14 10:35 | Stefan Palosi v Kai Lemstra | 6-4,7-6 |
| ITF M15 Satu Mare | 2023/09/13 09:25 | Kai Lemstra v Simone Agostini | 6-3,6-4 |
| UTR Pro Beograd | 2023/10/12 06:00 | Kristian Juhas v Yanais Laurent | 0-6,0-6 |
| UTR Pro Beograd | 2023/10/11 09:00 | Aleksandar Mihailovic v Kristian Juhas | 6-2,3-6,2-6 |
| UTR Pro Beograd | 2023/10/10 12:00 | Aleksa Pisaric v Kristian Juhas | 4-6,4-6 |
| UTR Pro Beograd | 2023/10/08 10:30 | Kristian Juhas v Ivan Sodan | 6-2,3-3 |
| ITF M15 Novi Sad | 2023/07/30 08:30 | Kristian Juhas v Samuel Paulovcak | 6-0,6-3 |
| ITF M15 Belgrade | 2023/06/25 12:00 | Kristian Juhas v Vladan Tadic | 6-3,6-3 |
| UTR Pro Beograd | 2023/04/15 06:00 | Kristian Juhas v Andre Biro | 4-6,3-6 |
| UTR Pro Beograd | 2023/04/14 07:00 | Milan Drinic v Kristian Juhas | 3-6,6-1,6-4 |