Stadium: Court 2 Round: 44 Ground: Clay
| UTR Pro Zadar | 2023/04/01 11:00 | Duje Kekez v Nikola Basic | 6-3,6-2 |
| UTR Pro Zadar | 2023/03/31 06:00 | Tim Heger v Nikola Basic | 6-4,6-2 |
| UTR Pro Zadar | 2023/03/30 07:30 | Sebastian Prechtel v Nikola Basic | 2-6,6-3,7-5 |
| UTR Pro Zadar | 2023/03/28 09:00 | Paul Woerner v Nikola Basic | 6-7,4-6 |
| Challenger Zadar | 2023/03/19 11:40 | Nikola Basic v Damien Wenger | 3-6,1-6 |
| ITF M15 Rovinj | 2023/03/14 09:00 | Sergi Perez Contri v Nikola Basic | 7-5,6-2 |
| ITF M15 Rovinj | 2023/03/13 09:00 | Michael Gloeckler v Nikola Basic | 3-6,6-3,7-10 |
| ITF M15 Rovinj | 2023/03/12 09:00 | Matteo Fondriest v Nikola Basic | 7-6,4-6,8-10 |
| ITF M25 Opatija | 2023/03/19 08:00 | Andre Biro v Lovro Maricic | 1-6,7-5,10-4 |